How is respirable carbon fibre composite dust captured at Bastion Cycles, Curve Cycling, Ti Cycles, Bombtrack and other Australian carbon composite bicycle frame builders?

Respirable carbon fibre composite dust from machining cured CFRP bicycle frames at Bastion Cycles, Curve Cycling, Llewellyn Custom Bicycles, Bombtrack, Ti Cycles and the Australian Custom Bicycle Builder Council (ACBBC) member network is regulated to a workplace exposure standard of 5 mg/m3 inhalable. The fibre geometry (5 to 10 micron diameter, 50 to 1000 micron length after machining) places carbon and aramid composite dust in the respirable range with potential for chronic inflammatory response in the lower lung. Capture velocity at every sanding, drilling, mitering and machining station is 0.5 to 1.0 m/s at the hood face, with transport velocity through the duct at 18 to 23 m/s per NFPA 91 industrial ventilation guidance. The dust is collected through a HEPA pre-filter (99.97 percent at 0.3 micron) into a sealed drum or bag house with electrically conductive filter media because the dry composite fibre carries a significant static charge. Ductwork is galvanised 1.2 mm or 316L stainless 1.5 mm with conductive seam construction and full equipotential bonding to less than 10 ohms resistance. NFPA 660 (the 2025 consolidated combustible dust standard) treats carbon fibre dust as combustible with Kst 50 to 100 bar.m/s and the dust collector requires explosion venting where the collected volume exceeds 0.5 m3. SBKJ SBFB-1500 spiral tubeformer for round dust transport and SBAL-V in 316L stainless variant for rectangular plenum at the dust collector inlet are the standard outputs.

What does NFPA 855 require for Li-ion battery energy storage system (BESS) thermal runaway capture at e-bike, e-scooter, mobility scooter and Neuron Mobility production sites?

NFPA 855 — Standard for the Installation of Stationary Energy Storage Systems — governs Li-ion battery rooms at e-bike (Specialized Turbo, Trek Allant, Giant Trance, Merida Big Nine, Norco Bigfoot, Cube Acid, Reid Original e-bike, Apollo, Polygon), e-scooter (Neuron Mobility Sydney Brisbane Melbourne Canberra, Bird, Lime, Beam, Tier, Voi, Helbiz, Spin), mobility scooter (Pride Mobility, Permobil, Sunrise Medical, Drive Medical, Pioneer Mobility, Heartway, Australia Mobility) and the broader battery commissioning and fleet refurbishment cluster. The standard sets siting separation, fire detection, fire suppression (Stat-X aerosol, Novec 1230, water mist, FM-200), explosion control and ventilation for stationary battery rooms with Li-ion cell capacity above 20 kWh aggregate. Thermal runaway off-gas from LFP, NMC and NCA chemistries contains hydrogen fluoride (HF at 1.8 ppm STEL — the killer), carbon monoxide (CO at 30 ppm), hydrogen (H2 at 25 percent LEL deflagration), methane, ethylene, propylene and dimethyl carbonate (DMC) electrolyte vapour. The room is classified AS/NZS 60079 Zone 2 because H2 evolution during normal operation and significant H2 + HC release during cell venting create explosive atmosphere potential. Ductwork on Li-ion BESS thermal runaway exhaust is 316L stainless 1.5 to 2.0 mm with 250 C smoke spill fire rating per AS 1530.4 — the off-gas reaches 200 to 400 C during a runaway event and HF attacks galvanised zinc within hours. AS/NZS 5139 sets the Australian Li-ion battery installation requirements with separate residential and commercial guidance. SBKJ SBAL-V at 316L 1.5 mm and SBSF-1525 stitchwelder for fire-rated sections are the standard outputs.

How is an isocyanate paint booth designed for Apollo Bikes, Reid Cycles, Bastion Cycles, Pride Mobility scooter, Hobie Australia and similar bicycle frame and personal mobility topcoat application?

Frame and chassis topcoat application using two-component polyurethane systems (Akzo Nobel, Dulux, Jotun, Tiger, IGI Powder, PPG, Imron, Awl-Grip) generates isocyanate aerosol with TDI and MDI components at a workplace exposure standard of 0.005 ppm TWA — twenty times more restrictive than styrene. The booth is classified AS/NZS 60079 Zone 1 because isocyanate aerosol combined with the solvent carrier (xylene, MEK, ethyl acetate, MIBK) forms an explosive atmosphere within the booth volume during active spraying. Booth construction is fire-rated steel panel with non-sparking light fittings, spark-free electrical switchgear outside the booth envelope, and dual-redundant interlocked extract fans on emergency power. Airflow is downdraft at 0.4 to 0.5 m/s leaf-canopy velocity for premium custom titanium frame work (Bastion Cycles, Curve Cycling, Llewellyn Custom) and cross-draft at 0.5 to 0.6 m/s for production aluminium and steel frame work (Apollo Bikes, Reid Cycles, Pride Mobility, Permobil scooter chassis). Post-cure bake at 60 to 80 C drives off residual solvent — the bake oven is governed by NFPA 86 (cross-referenced with AS 1530.4 for fire rating). Ductwork is 304L stainless 1.5 to 2.0 mm for the spray exhaust riser (isocyanate aerosol attacks zinc within 6 to 12 months) and 316L stainless 1.5 mm for the post-cure bake oven duct at 60 to 80 C. SBKJ SBAL-V configured for 316L 1.5 mm stainless is the standard output.

How is aluminium dust handled at Apollo Bikes, Reid Cycles, Giant Bicycles Australia and other aluminium bicycle frame builders under NFPA 484?

Aluminium dust from grinding, sanding, polishing and machining of 6061, 7005-T6 and proprietary aluminium alloy frames at Apollo Bikes Sydney Melbourne, Reid Cycles, Giant Bicycles Australia Taiwan-owned assembly, Merida Australia, Polygon Australia, Norco Bikes Australia, Trek Bicycle Australia, Specialized Australia, Cube Bikes Australia and the broader aluminium bicycle and e-bike frame builder network is regulated under NFPA 484 (cross-referenced with NFPA 660 in 2025) as Class D combustible metal. The deflagration parameters are Kst 200 to 415 bar.m/s, Pmax 10 to 12 bar, minimum ignition energy 5 to 50 mJ — extremely low. Aluminium fines under 500 microns produce Dust Hazard Class St-2 with possibility of escalation to St-3 on very fine fines under 50 microns. Capture at source through localised exhaust at every grinding, sanding and polishing station at 18 to 23 m/s transport velocity. Wet collector (water-bath scrubber) is the preferred technology because it captures the fines in water and quenches any deflagration before it can propagate. Dry collectors are acceptable with explosion suppression (chemical isolation valve and explosion vent) and explosion isolation (rotary airlock or air gap) between the upstream ductwork and the collector. Water deluge fire suppression on aluminium dust is restricted because Al plus H2O produces aluminium hydroxide plus hydrogen gas — hydrogen evolution can convert a small fire into a deflagration. Class D extinguishing media (Met-L-X, Pyrene G-Plus, Lith-X) at every grinding station. Ductwork is galvanised 1.2 mm minimum with conductive seam sealant or 316L stainless 1.5 mm, all joints bonded and grounded to less than 10 ohms. NFPA 484 explicitly prohibits sharing aluminium dust ductwork with steel or titanium dust ductwork. SBKJ SBFB-1500 spiral configured for galvanised heavy gauge with conductive seam sealant is the standard output.

What is the design approach for Neuron Mobility, Bird, Lime, Beam, Tier and Voi e-scooter battery commissioning, charging and fleet refurbishment HVAC?

Australian e-scooter shared mobility operators run multi-thousand-vehicle fleets across Sydney, Brisbane, Melbourne, Canberra and the Gold Coast — Neuron Mobility (acquired by Brookfield Asset Management) is the dominant Australian operator with parallel operations at Bird, Lime, Beam, Tier, Voi, Helbiz and Spin. Each fleet operates a central depot or warehouse with battery charging bay, vehicle commissioning area, parts store and fleet refurbishment line. The charging bay is classified AS/NZS 60079 Zone 2 because Li-ion battery charging generates trace H2 evolution under normal conditions and significant H2 plus HF plus CO plus organic VOC release during a thermal runaway event. NFPA 855 governs the stationary energy storage installation. AS/NZS 5139 sets the Australian Li-ion battery installation requirements. The HVAC envelope runs general dilution at 6 to 12 ACH plus localised exhaust above the charging racks at 2 to 4 m3/s per 100 charging positions. Fire detection includes early warning aspirating smoke detection (ASD), HF gas detection at 0.5 ppm action threshold, H2 gas detection at 10 percent LEL action threshold, CO detection at 25 ppm action threshold and thermal imaging (FLIR) cameras above the charging racks. Fire suppression is Stat-X aerosol or Novec 1230 for the charging racks plus dedicated water mist for the surrounding shed. Ductwork on the charging bay exhaust is 316L stainless 1.5 mm with 250 C smoke spill rating. SBKJ SBAL-V at 316L 1.5 mm and SBSF-1525 stitchwelder are the standard outputs.

What air volumes are typical for an Australian production bicycle, e-bike, mobility scooter or surfboard manufacturer fit-out?

A typical Australian production aluminium bicycle frame builder running 5,000 to 50,000 frames per year (Apollo Bikes Sydney Melbourne, Reid Cycles, Giant Bicycles Australia assembly, Merida Australia, Polygon Australia, Norco Australia, Cube Bikes Australia local assembly, BikePro online DTC) installs 8 to 18 m3/s total supply across the facility. The breakdown is frame tube prep, mitering and weld bay at 3 to 6 m3/s LEV extract for aluminium fines plus welding fume, paint booth and powder coat at 2 to 4 m3/s exhaust per booth station, post-cure bake oven at 0.5 to 1 m3/s exhaust at 60 to 80 C, assembly and wheel build at 1 to 2 m3/s general dilution, QC and test bay at 0.5 to 1 m3/s plus localised LEV at battery commissioning, administration and showroom at 1 to 3 m3/s. A custom titanium 3D-printed frame builder (Bastion Cycles, Ti Cycles, Curve Cycling, Llewellyn Custom) installs 5 to 12 m3/s with composite dust capture dominating the load. A surfboard, SUP and kayak builder (Mick Fanning Softboards, JS Industries, Channel Islands Surfboards Australia, Hobie Australia, Pyzel, Sharpeye, Webber) installs 10 to 22 m3/s with the styrene capture and PU foam dust collection dominating. An e-scooter fleet depot (Neuron Mobility, Bird, Lime, Beam) operates 15 to 35 m3/s installed with the BESS Li-ion charging bay exhaust dominating at 8 to 20 m3/s through 316L stainless ductwork.

What standards govern Australian bicycle, e-bike, e-scooter, mobility scooter and recreational watercraft manufacturing ventilation compliance?

Australian compliance runs through a layered standards stack. AS 1668.2 governs general mechanical ventilation in industrial sheds. AS 4254 covers rigid duct construction. AS 1530.4 covers fire resistance of building elements. AS/NZS 60079 governs hazardous area zone classification covering paint booth, resin store, Li-ion BESS, LPG forklift, vehicle fuel store and paint cure oven. AS 3957 governs dust hazard area classification for aluminium fines, titanium fines, composite carbon fibre and aramid dust, wood dust and polystyrene. AS 1940 governs flammable liquid handling for paint thinner, adhesive, resin solvent, propane LPG and Li-ion electrolyte (DMC, EMC, EC). AS/NZS 5139 sets the Australian Li-ion battery installation envelope. NFPA 484 (cross-referenced with NFPA 660 in 2025) governs combustible metal handling for aluminium, magnesium and titanium fines. NFPA 855 covers stationary BESS. NFPA 86 governs the post-cure paint bake oven and autoclave composite cure. NFPA 30 covers flammable liquid. AS/NZS 1554.1 and AS/NZS 1554.6 cover steel and stainless welding. AS 1665 covers aluminium welding and AS 1865 covers titanium welding. ISO 4210 governs bicycle test methods. AS 1900, AS 1801, AS 3838 and AS 2063 cover helmet construction (cycle and motorcycle). Vehicle Safety Standards Bulletin VSB14 and VSB6 plus federal Australian Design Rules ADR 36 and ADR 37 govern e-bike and e-scooter speed limit at 25 km/h. State Personal Mobility Devices (PMD) regulation across NSW, VIC, QLD, SA, WA, TAS, ACT and NT sets the on-road envelope. IMCI International Marine Certification Institute applies to recreational watercraft, kayak and SUP.

What SBKJ machine model and configuration is recommended for an Australian bicycle, e-bike, mobility scooter or surfboard manufacturer fit-out?

The standard SBKJ machine stack for an Australian bicycle, e-bike, e-scooter, mobility scooter, recreational watercraft and personal transport manufacturing fit-out runs four to five machine families. SBAL-V auto duct line in galvanised configuration produces 0.8 to 1.2 mm rectangular duct for general workshop supply, administration and warehouse ventilation at 8 to 15 m/min line speed. SBAL-V auto duct line in 316L stainless variant produces 1.5 mm rectangular duct for spray booth exhaust, composite resin and styrene capture, Li-ion BESS thermal runaway exhaust and post-cure bake oven at 4 to 7 m/min. SBFB-1500 spiral tubeformer produces 100 to 1,500 mm round duct for composite dust collection, aluminium dust collection, titanium dust collection, wood dust collection and return-air trunks at 12 to 20 m/min line speed. SBSF-1525 stitchwelder handles 1.2 to 2.0 mm gauge fire-rated and bake-oven sections at 250 C smoke spill per AS 1530.4 for BESS thermal runaway. SB-ZF1500 stitchwelder handles a similar envelope at slightly reduced size and capital cost. SBPC1500 plasma cutter handles transition pieces and non-standard duct shapes. SBLR-600 louvre former handles acoustic silencer end-caps and weather louvres. SBTF-1500, SBTF-1602 and SBTF-2020 spiral variants cover smaller shop requirements. Lead time is 12 to 14 weeks for galvanised SBAL-V, 14 to 16 weeks for the 316L stainless variant, 10 to 12 weeks for SBFB-1500 spiral, 12 to 14 weeks for SBSF-1525 stitchwelder, plus 4 to 6 weeks ocean freight to Australian ports.

Insights · HVAC Manufacturing — Bicycle E-Bike E-Scooter Mobility Scooter Watercraft Personal Transport

Bicycle E-Bike E-Scooter Mobility Scooter Watercraft Personal Transport Manufacturing HVAC Duct Guide — Apollo Bikes, Reid Cycles, Bastion Cycles, Neuron Mobility, Pride Mobility, Hobie Australia, NFPA 484 Aluminium, NFPA 855 Li-ion BESS, AS/NZS 60079

A complete engineer-led specification guide for HVAC ductwork on Australian bicycle, e-bike, e-scooter, mobility scooter, recreational watercraft and personal transport manufacturing fit-outs — covering carbon fibre composite frame autoclave cure at 180 to 200 C and 7 bar, Li-ion battery energy storage system thermal runaway HF and CO and H2 capture, isocyanate paint booth zone classification under AS/NZS 60079 Zone 1, aluminium fines deflagration under NFPA 484, titanium 3D-printed frame builder dust and Cu-Be flux capture, surfboard SUP kayak Hobie Australia styrene extraction, e-scooter Neuron Mobility Brookfield fleet depot BESS commissioning, mobility scooter Permobil Sunrise Medical chassis paint, ISO 4210 bicycle test, NFPA 855 stationary BESS, NFPA 86 industrial oven, AS/NZS 5139 Li-ion battery install, AS 1940 flammable liquid, AS 4254 duct construction — with the SBKJ duct fabrication machinery sized for fit-outs from Sydney to Perth, Melbourne to Brisbane, Hobart to Canberra and the Gold Coast.

By SBKJ Engineering Team · Published May 25, 2026 · 40 min read · Reviewed by SBKJ QA & Engineering

Why bicycle and personal transport HVAC is one of the most layered mixed-process ventilation jobs in Australian light manufacturing

Walk through Apollo Bikes' assembly line at Sydney or Melbourne, Reid Cycles' workshops, Bastion Cycles' 3D-printed titanium frame studio in Melbourne, Neuron Mobility's e-scooter fleet depot in Sydney, Pride Mobility's mobility scooter chassis paint line, Hobie Australia's kayak and SUP factory, or Mick Fanning Softboards' surfboard shaping bay and the same pattern repeats across every facility — multiple hazardous processes coexisting under one roof, each with a distinct workplace exposure standard, a distinct fire and deflagration profile, and a distinct ventilation envelope. Aluminium grinding fines (NFPA 484 Class D combustible metal) coexist with isocyanate paint booth aerosol (0.005 ppm WES — twenty times more restrictive than styrene) coexist with carbon fibre composite dust (5 mg/m3 respirable, NFPA 660 combustible) coexist with Li-ion battery thermal runaway off-gas (HF at 1.8 ppm STEL — the killer of any battery commissioning bay) coexist with surfboard polyester resin styrene at 50 ppm WES coexist with EPS and polystyrene dust at 10 mg/m3 inhalable. A typical Australian production bicycle, e-bike or mobility scooter builder runs six to ten distinct ventilation problems in parallel. A pure aluminium frame shop runs four. A surfboard shaping and glassing bay runs three. A fleet e-scooter depot is dominated by the Li-ion BESS problem. The combined complexity sits between an automotive paint shop and a marine boatbuilder — and the regulatory stack is dense.

This guide is the same engineering reference our SBKJ application team uses when a Bicycle Industries Australia (BIA) member, an AusCycling-registered frame builder, a Surf Industries Australia (SIA) member, a Personal Mobility Devices Industry Body (PMDIB) operator or a recreational watercraft manufacturer asks how to size duct fabrication for a personal transport fit-out. We have built duct fabrication machinery on projects ranging from a single Australian Custom Bicycle Builder Council (ACBBC) member running a five-frame-per-month titanium 3D-printed boutique through to a 50,000-frame-per-year mainstream aluminium assembly line, from a 200-board-per-week production surfboard shaper through to a multi-thousand-vehicle e-scooter fleet depot. The patterns repeat. The standards stack — AS 1668.2 over AS 4254 over AS/NZS 60079 over AS 3957 over NFPA 484 over NFPA 855 over NFPA 660 over AS/NZS 5139 over ISO 4210 — is one of the most layered regulatory stacks we handle in Australian light manufacturing. Get the standards stack right and the rest of the design follows.

Seven conditions make bicycle and personal transport HVAC harder than other industrial ventilation. First, the multi-toxicant problem — styrene, isocyanate, epoxy amine, solvent VOC, aluminium dust, titanium dust, carbon fibre dust, polystyrene dust, Li-ion electrolyte vapour and HF thermal runaway off-gas all coexist in adjacent zones and the LEV system must capture each one without cross-contamination. Second, the combustible metal hazard — aluminium fines from grinding 6061 and 7005-T6 bike frame stock plus titanium fines from machining 3Al-2.5V titanium frames are both NFPA 484 Class D combustible metals with water reactivity (Al plus H2O produces aluminium hydroxide plus hydrogen gas; Ti plus H2O at elevated temperature similar), which restricts water deluge suppression. Third, the Li-ion BESS thermal runaway hazard — every e-bike, e-scooter, mobility scooter and battery commissioning bay carries the catastrophic risk of cell venting that releases HF at 200 to 400 C with explosion potential, governed by NFPA 855 and AS/NZS 5139. Fourth, the hazardous area density — every personal transport builder has at least four AS/NZS 60079 zones (paint booth Zone 1, resin store Zone 2, Li-ion BESS charging bay Zone 2, LPG forklift Zone 2) plus AS 3957 dust zones around aluminium, titanium and composite grinding. Fifth, the composite cure profile — autoclave processing of carbon fibre bike frames at Bastion Cycles, Curve Cycling and selected race frame builders runs at 180 to 200 C and 7 bar absolute pressure for 2 to 4 hour cure, with off-gassing that must be diluted to under 25 percent of LEL. Sixth, the surfboard and SUP styrene problem — the Australian surfboard manufacturing sector concentrates on the Gold Coast, Sydney's Northern Beaches and the Sunshine Coast with the same polyester resin chemistry as marine boatbuilding but on smaller, lower-volume part geometries. Seventh, the regulatory overlay — federal Australian Design Rules ADR 36 and ADR 37 plus state Personal Mobility Devices (PMD) regulation across NSW, VIC, QLD, SA, WA, TAS, ACT and NT govern e-bike and e-scooter speed limits at 25 km/h plus mandatory helmet, light, reflector, bell and brake compliance, which feeds back into the testing and commissioning ventilation requirements at every production facility.

The Australian bicycle, e-bike, mobility, watercraft and personal transport manufacturing landscape

Australian personal transport manufacturing concentrates across five product clusters and four geographic clusters, each with distinct product mix, scale and ventilation challenge. Understanding the cluster pattern is the starting point for any duct machinery procurement decision in the sector.

Bicycle frame and complete bike manufacturers. Apollo Bikes operates from Sydney and Melbourne as an Australian brand designing and locally manufacturing mainstream and premium bicycles. Reid Cycles runs an Australian-owned distribution model across Melbourne, Sydney, Brisbane and Perth with Australian-assembled and imported product. Cube Bikes Australia, German parent with local Australian assembly, runs a Melbourne-based assembly operation. Avanti Bikes operates from New Zealand with local Australian assembly facilities. Norco Bikes Australia, Trek Bicycle Australia (US-owned), Specialized Australia (US-owned), Giant Bicycles Australia (Taiwan-owned with Australian assembly and distribution), Merida Australia, Polygon Australia, BMC Switzerland Australia, Pinarello Australia, KTM Bicycles Australia (Austrian-owned), Kona Australia and Diamondback Australia all operate Australian assembly, fit-out, paint and distribution facilities. BikePro and Bicycles Online operate online direct-to-consumer (DTC) models with central Australian warehousing and assembly. E-bike models from Specialized Turbo, Trek Allant, Giant Trance, Merida Big Nine, Norco Bigfoot, Cube Acid, Reid Original e-bike, Apollo, Smart Bike, Polygon, Bluetooth e-bike, Dyson, Lekki and Velec drive significant additional volume through the same assembly facilities.

Australian custom and OEM frame builders. Bastion Cycles operates from Melbourne as one of the world's leading 3D-printed titanium frame builders, combining additive manufacturing with carbon composite tube construction. Curve Cycling, Ti Cycles, Llewellyn Custom Bicycles, Bombtrack Bicycle Australia and the Australian Custom Bicycle Builder Council (ACBBC) member network represent the high-end titanium, steel and aluminium custom frame sector. Ironman Tri Bike, Soda Bike and various Australian Custom Bicycle Builder Council ACBBC members serve the triathlon, gravel, mountain and road segments with custom geometry. Tandem Frame Australia covers the specialist tandem market.

E-scooter and shared mobility. Neuron Mobility (acquired by Brookfield Asset Management) operates the dominant Australian e-scooter shared mobility fleet across Sydney, Brisbane, Melbourne, Canberra and the Gold Coast. Parallel operators include Bird, Lime, Beam, Tier Mobility, Voi, Helbiz and Spin. Each operator runs a central depot or warehouse for battery charging, vehicle commissioning, parts storage, fleet refurbishment and maintenance. The depots are typically light industrial warehouse occupancy under NCC Class 7b with Class 8 industrial component on the battery commissioning bay.

Mobility scooter manufacturers and distributors. Pride Mobility, Drive Medical, Pioneer Mobility, Heartway, Cool Mobility, Top Daze, Australian Mobility, Quingo, Heartway USA, Permobil, Sunrise Medical, Pride USA, Drive Medical Sunrise Australia and Australia Mobility Scooters operate Australian assembly, fit-out, paint and distribution facilities supporting the aged-care, disability and personal mobility sector. Permobil and Sunrise Medical run premium powered wheelchair lines with parallel HVAC envelopes.

Recreational watercraft and personal watercraft manufacturers. Sea-Doo Australia, Yamaha WaveRunner Australia and Kawasaki Jet Ski Australia operate personal watercraft (PWC) import, assembly and commissioning facilities. Surftech, Hobie Australia (kayak, stand-up paddle board SUP and small catamaran sailboat), Hobie Cat, Topaz Surf, Boomerang Aussie Boards, Australian Made Surfboard (Mark Richards, Tom Carroll, Murray Smith, Simon Anderson, Phil Byrne), Mick Fanning Softboards, Surftech, Firewire, JS Industries, Channel Islands Surfboards Australia, Pyzel, Sharpeye and Webber Surfboards run Australian surfboard and SUP manufacturing concentrated on the Gold Coast, Sydney's Northern Beaches and the Sunshine Coast. Wilderness Systems Australia, Old Town Canoe and Hobie Australia cover the kayak and canoe segment. Polaris Sportsman ATV, Yamaha Grizzly ATV, Honda TRX ATV and Kawasaki Mule UTV (with Yamaha Australia, Honda Australia and Polaris Australia distributors) cover the recreational off-road vehicle segment.

Indoor exercise and spin equipment. Wahoo Fitness Australia, Concept2 Rowing Machine, Stages Indoor Cycling, Lifecore, Schwinn AC Power, Echelon, Peloton Australia, MyZone, TRX, Australian gym equipment manufacturer Force USA and Body Solid Australia run Australian assembly, fit-out and distribution for indoor cycling, rowing and resistance training equipment. The product overlaps with bicycle assembly on geometry, motor, electronics and braking systems but with different paint and fit-out requirements.

Each cluster has a distinctive process mix. Aluminium bicycle assembly is dominated by aluminium dust collection and paint booth. Titanium custom frame is dominated by titanium dust and Cu-Be flux capture. Carbon fibre frame is dominated by composite dust and autoclave ventilation. Surfboard and SUP is dominated by styrene and PU foam dust. E-scooter and mobility scooter is dominated by Li-ion BESS thermal runaway capture plus chassis paint booth. The ventilation design must match the cluster's process mix and the facility's destination market.

Bicycle manufacturing HVAC duct — process zones across frame builder, paint, assembly and test

Inside a typical Australian production bicycle manufacturer there are seven sequential or parallel process zones, each with its own ventilation signature. The duct designer must size supply and exhaust for each zone independently and verify there is no zone-to-zone cross-contamination.

Frame builder — tube prep, mitre, cut and fit. Frame tube material includes steel 4130 chromoly (legacy and traditional steel frames at Llewellyn Custom and various ACBBC members), aluminium 6061 and 7005-T6 (mainstream aluminium frames at Apollo Bikes, Reid Cycles, Giant Bicycles Australia assembly, Merida Australia, Cube Bikes Australia, Norco Australia, Trek Australia, Specialized Australia), titanium 3Al-2.5V (Bastion Cycles, Ti Cycles, Curve Cycling, Llewellyn Custom and selected ACBBC members) and carbon fibre CFRP composite (Specialized Turbo, Trek Madone, Giant TCR, Pinarello Dogma, BMC Roadmachine, Cervelo S5, Cannondale SuperSix, Trek Top Fuel, Apollo, Bastion 3D-printed composite, Curve Cycling, Pyzel applied to bike applications). TIG welding on steel, aluminium and titanium with Cu-Be flux backing on thin-wall titanium. Aluminium fines (NFPA 484), titanium fines (NFPA 484), manganese and chromium welding fume all coexist. LEV at every mitering and welding station at 0.5 to 1.0 m/s capture velocity, dust transport at 18 to 23 m/s.

Carbon composite frame layup, autoclave and vacuum bag. Carbon fibre reinforced polymer (CFRP) frame construction at Bastion Cycles (3D-printed titanium plus carbon tube), Curve Cycling, selected race frame builders and the OEM assembly lines of Specialized, Trek, Giant, Pinarello, BMC, Cervelo, Cannondale and Trek Top Fuel. Pre-preg layup with vacuum bag debulk followed by autoclave cure at 180 to 200 C and 7 bar absolute pressure for 2 to 4 hour cure under nitrogen blanket. Post-cure CNC machining of cured composite parts generates respirable carbon fibre dust at 5 mg/m3 WES inhalable and combustible dust per NFPA 660. Layup room cleanliness targets ISO 8 ambient or unclassified clean at 22 plus or minus 2 C and 50 plus or minus 10 RH. Vacuum bag debulk extracts at 0.5 to 1.0 m3/s per active mould through HEPA pre-filter. Resin solvent (epoxy thinner, IPA, acetone, MEK) flashes during cure ramp-up and must be diluted to under 25 percent of LEL.

Paint booth, powder coat and anodise. Frame topcoat application using two-component polyurethane systems (Akzo Nobel, Dulux, Jotun, Tiger, IGI Powder, PPG, Imron, Awl-Grip) generates isocyanate aerosol with TDI and MDI at 0.005 ppm WES. Powder coat alternative uses electrostatic dry powder with no isocyanate but with combustible powder dust hazard per AS 3957. Anodise on aluminium frames runs chromate conversion (phasing for Trivalent chromium), TSA (Tartaric Sulfuric Anodise) or BSAA (Boric Sulfuric Anodise) non-chromate alternatives. Spray booth classified AS/NZS 60079 Zone 1 with downdraft at 0.4 to 0.5 m/s or cross-draft at 0.5 to 0.6 m/s. Post-cure bake at 60 to 80 C drives off residual solvent. Powder coat oven runs at 180 to 200 C for 20 to 30 minutes for melt and flow.

Frame assembly, wheel build, drivetrain and component fitting. Shimano (Dura-Ace, XTR, XT, Ultegra, 105, SLX, Deore), SRAM (Eagle XX1, XX, X01, X01 AXS, Force AXS, Rival AXS, Apex AXS), Campagnolo (Super Record, Record, Chorus, Centaur), DT Swiss, Mavic, Industry Nine, Reynolds, Roval, Easton and Zipp drivetrain and wheel components. Quarq and SRM power meters. Garmin Edge, Wahoo Elemnt and Hammerhead Karoo electronics. Assembly bay supply at 4 to 6 ACH plus localised LEV at any active gluing, bonding or sealant operation.

E-bike motor, battery and controller integration. Bosch Performance Line, Performance CX, Active Plus, Yamaha PWX, PWX2, Shimano EP6, EP800, Brose Drive S Mag, Bafang Max Drive motor systems integrated into Specialized Turbo, Cube, Giant, Merida, Reid, Apollo and other e-bike platforms. Li-ion battery from Bosch PowerPack, PowerTube, Yamaha, Shimano STEPS battery and Brose battery at 36V or 48V and 500 to 1,000 Wh capacity. Battery commissioning bay classified AS/NZS 60079 Zone 2 with HF, CO and H2 detection per NFPA 855 and AS/NZS 5139.

QC, test, electrical, BMS test, battery commissioning, motor test and dynamometer. Final test rig for e-bike battery management system (BMS) verification, motor power test, frame fatigue test per ISO 4210, brake performance test, electromagnetic compatibility (EMC) test for e-bike electronics. Battery test rig classified AS/NZS 60079 Zone 2 with deflagration panel and NFPA 855 fire suppression (Stat-X aerosol, Novec 1230 or water mist). Arc fault detection and thermal imaging (FLIR) cameras above each test cell.

Indoor exercise equipment assembly. Wahoo Fitness Australia, Concept2, Stages Indoor Cycling, Lifecore, Schwinn AC Power, Echelon, Peloton Australia, Force USA and Body Solid Australia run Australian assembly with steel and aluminium chassis paint, electronics fit-out and final QC. Process mix sits between bicycle assembly and gym equipment manufacturing. Total HVAC load 3 to 8 m3/s installed per facility.

Carbon composite frame autoclave 180 C — Bastion Cycles, Curve Cycling, Pyzel and OEM CFRP processing

Carbon fibre composite frame manufacturing is the most demanding process zone in any premium bicycle production line. The Australian sector concentrates on Bastion Cycles (Melbourne) running 3D-printed titanium frame elements bonded into pre-preg carbon tube assemblies, Curve Cycling running carbon and titanium hybrid construction, selected race frame builders and the OEM assembly lines of Specialized Turbo, Trek Madone, Giant TCR, Pinarello Dogma, BMC Roadmachine, Cervelo S5, Cannondale SuperSix, Trek Top Fuel, Apollo, Pyzel (applied to bicycle composite) and the broader carbon composite frame sector.

The autoclave is a pressure vessel cured at 180 to 200 C and 7 bar absolute pressure for 2 to 4 hour cure under nitrogen blanket. The autoclave itself is registered as a pressure vessel to AS 1210 (or equivalent) but the surrounding ventilation handles the off-gassing during ramp-up, hold and post-cure cool-down. Resin solvent (epoxy thinner, IPA, acetone, MEK at WES 200 ppm, ethyl acetate at WES 200 ppm) flashes during ramp-up at 120 to 180 C, generating peak VOC concentrations that must be diluted to under 25 percent of the lower explosive limit (LEL). Composite cure off-gas also contains low concentrations of amine and anhydride hardener residue with skin sensitiser and respiratory effects.

Pre-preg carbon and aramid fibre material is stored at minus 18 C in a dedicated freezer and brought to ambient before layup. The freezer ventilation must avoid condensation on the pre-preg material as it warms — typically 22 plus or minus 2 C ambient at 50 plus or minus 10 RH with stable air movement through the freezer-to-layup-room transition. Layup room cleanliness targets ISO 8 ambient or unclassified clean at the same temperature and humidity envelope.

Vacuum bag debulk station extracts at 0.5 to 1.0 m3/s per active mould through HEPA pre-filter. The vacuum exhaust line carries concentrated resin solvent and must be ducted to a carbon scrubber or activated carbon adsorber, not vented to the workshop. Post-cure CNC machining of cured composite parts generates respirable carbon fibre dust at 5 mg/m3 WES inhalable that must be captured through localised dust extraction at every machining station at 0.5 to 1.0 m/s capture velocity. The dust is regulated under NFPA 660 (the 2025 consolidated combustible dust standard) as combustible with Kst 50 to 100 bar.m/s — significantly less aggressive than aluminium but still requiring explosion venting on the dust collector where collected volume exceeds 0.5 m3.

Ductwork on composite frame autoclave ventilation is 316L stainless 1.5 to 2.0 mm because nitrogen purge and elevated cure temperature exceed polypropylene service limits. The autoclave vent line transports residual nitrogen plus solvent VOC at 180 to 200 C peak temperature with bellows expansion joints at every wall penetration (180 C through-bore thermal growth is 3 mm per metre versus ambient — a 10 m vent line grows 30 mm linearly during a full cure cycle).

Bastion Cycles' workflow at Melbourne combines additive manufacturing 3D-printed titanium lugs with pre-preg carbon tube. The titanium 3D-printed elements come out of a powder bed fusion (PBF) machine into a post-processing step that includes HIP (Hot Isostatic Pressing), heat treatment, support removal and surface finish. The HIP and heat treatment ovens at 600 to 900 C are governed by NFPA 86 and AS 1530.4 with full hazardous area assessment. SBKJ SBAL-V at 316L 1.5 mm plus SBFB-1500 spiral for round vent lines and SBSF-1525 stitchwelder for heavy-gauge fire-rated sections covers the autoclave and HIP oven ventilation envelope.

SBKJ machinery for carbon composite frame autoclave 180C ventilation ductwork: SBAL-V auto duct line in 316L stainless variant produces 1.5 to 2.0 mm rectangular duct for the autoclave vent and layup room exhaust trunk. SBFB-1500 spiral tubeformer produces 100 to 1,500 mm round duct for the autoclave vent stack and the carbon scrubber inlet. SBSF-1525 stitchwelder handles heavy-gauge sections at the autoclave skin and the carbon filter housing. Lead time 14 to 16 weeks for the 316L stainless SBAL-V configuration.

E-bike Li-ion BESS Zone 2 — battery commissioning, charging and thermal runaway capture

Every modern e-bike from Specialized Turbo, Trek Allant, Giant Trance, Merida Big Nine, Norco Bigfoot, Cube Acid, Reid Original e-bike, Apollo, Smart Bike, Polygon, Bluetooth e-bike, Dyson, Lekki and Velec carries a Li-ion battery from Bosch PowerPack, PowerTube, Yamaha, Shimano STEPS battery or Brose battery at 36V or 48V and 500 to 1,000 Wh capacity. The battery commissioning, charging and integration ventilation envelope is the highest-risk zone in any e-bike production line.

NFPA 855 (Standard for the Installation of Stationary Energy Storage Systems) sets the international best-practice envelope for Li-ion BESS where the aggregate room capacity exceeds 20 kWh. AS/NZS 5139 sets the Australian Li-ion battery installation requirements with separate residential and commercial guidance. Both standards recognise the same hazard hierarchy: thermal runaway from a single cell can cascade to adjacent cells within seconds, releasing concentrated off-gas containing HF (hydrogen fluoride at 1.8 ppm STEL — the killer), CO (carbon monoxide at 30 ppm), H2 (hydrogen at 25 percent LEL deflagration risk), methane, ethylene, propylene and DMC (dimethyl carbonate), EMC (ethyl methyl carbonate), EC (ethylene carbonate) electrolyte vapour. The off-gas reaches 200 to 400 C during venting.

The battery commissioning room is classified AS/NZS 60079 Zone 2 because H2 evolution during normal charging plus significant H2 plus HC release during cell venting create explosive atmosphere potential. The room construction is fire-rated wall and ceiling per AS 1530.4 with 250/250/250 FRL (Fire Resistance Level). Battery storage racks are positioned with NFPA 855 cell-to-cell separation per the standard, with deflagration panels on the exterior wall sized for the design Pmax (typically 0.7 to 1.5 bar overpressure for Li-ion cell venting).

Ventilation envelope: general dilution at 6 to 12 ACH continuous plus localised exhaust above each battery rack at 0.5 to 2 m/s capture velocity. Total exhaust at 2 to 4 m3/s per 100 e-bike batteries in commissioning. Fire and gas detection includes early warning aspirating smoke detection (ASD), HF gas detection at 0.5 ppm action threshold, H2 gas detection at 10 percent LEL action threshold, CO detection at 25 ppm action threshold and thermal imaging (FLIR) cameras above the battery racks with automated alarm and isolation at any pre-runaway thermal signature.

Fire suppression is layered. Primary suppression is Stat-X aerosol or Novec 1230 (FK-5-1-12) directed at the affected rack on detection. Secondary suppression is water mist or wet-pipe sprinkler per AS 2118 sized for the surrounding shed. Arc fault detection on every charging circuit isolates the supply within milliseconds of any abnormal current signature. The combination of ASD, gas detection, thermal imaging, automated isolation and aerosol suppression is designed to prevent cascade from a single-cell event to a full-rack runaway.

Ductwork on Li-ion BESS thermal runaway exhaust is 316L stainless 1.5 to 2.0 mm with 250 C smoke spill rating per AS 1530.4. Galvanised duct fails on HF exposure within hours — HF attacks zinc through both fluoride substitution and acid corrosion. The exhaust riser discharges 2 to 3 m above the building roof with no proximity to occupied areas or fresh air intakes (minimum 6 m horizontal separation per NFPA 855).

SBKJ machinery for e-bike Li-ion BESS Zone 2 thermal runaway ventilation: SBAL-V auto duct line in 316L stainless variant produces 1.5 to 2.0 mm rectangular duct for the battery commissioning room exhaust trunk. SBSF-1525 stitchwelder handles heavy-gauge 250 C smoke spill fire-rated sections at the room exterior and the abatement equipment connection. SBFB-1500 spiral tubeformer produces 200 to 800 mm round vertical riser to the roof discharge.

E-scooter Neuron Mobility thermal runaway — fleet depot, charging bay and BESS commissioning

Australian e-scooter shared mobility operators run multi-thousand-vehicle fleets across Sydney, Brisbane, Melbourne, Canberra and the Gold Coast. Neuron Mobility (acquired by Brookfield Asset Management) is the dominant Australian operator with parallel operations from Bird, Lime, Beam, Tier Mobility, Voi, Helbiz and Spin. Each operator runs a central depot or warehouse handling battery charging, vehicle commissioning, parts storage, fleet refurbishment and routine maintenance.

The Neuron Mobility depot envelope is representative of the Australian shared mobility sector. A typical Sydney or Brisbane depot covers 800 to 3,000 m2 with parallel zones: warehouse and shipping (general dilution at 1 to 2 ACH), battery charging bay (Zone 2 hazardous area at 6 to 12 ACH plus localised exhaust at 2 to 4 m3/s per 100 charging positions), vehicle commissioning bay (general dilution at 4 to 6 ACH plus LEV at any test or paint touch-up station), parts store (general dilution at 1 to 2 ACH with separate AS 1940 flammable liquid storage for paint thinner, adhesive and lubricant), fleet refurbishment line (LEV at any sanding, grinding or paint touch-up station), and administration and office (commercial ventilation at AS 1668.2 standards).

The Li-ion battery charging bay is the single highest-risk zone. A typical Neuron Mobility depot operates 200 to 1,000 charging positions in parallel, with each e-scooter battery rated 350 to 800 Wh at 36V or 48V. Aggregate room capacity reaches 100 to 500 kWh — well above the NFPA 855 threshold of 20 kWh for full standard application. AS/NZS 5139 commercial guidance applies in parallel.

The hazard envelope includes the same HF (1.8 ppm STEL), CO (30 ppm), H2 (25 percent LEL), DMC, EMC and EC electrolyte vapour, and electrolyte aerosol as the e-bike commissioning bay but at higher aggregate volume. A worst-case full-rack runaway event at a 1,000-position depot could release 200 to 800 kg of off-gas mass over 10 to 30 minutes, with concentrated HF at the source reaching 500 to 2,000 ppm before dilution.

The ventilation design must address two regimes — normal operation (continuous 6 to 12 ACH with HF, H2 and CO detection at the 0.5 ppm, 10 percent LEL and 25 ppm action thresholds) and runaway event (emergency exhaust mode at 20 to 50 ACH with full extraction to abatement equipment). The runaway mode duct must be sized for the higher flow and 316L stainless throughout. Make-up air during runaway mode comes from automatic damper-controlled outdoor air with no recirculation.

Fire suppression on the Neuron Mobility-scale depot is Stat-X aerosol or Novec 1230 plus water mist plus dedicated pumping capacity for water deluge if cell venting cascades. Arc fault detection on every charging circuit isolates the supply within milliseconds. Thermal imaging (FLIR) cameras above the charging racks with automated alarm and isolation at any pre-runaway thermal signature.

Ductwork specification: 316L stainless 1.5 to 2.0 mm for the battery charging bay exhaust trunk, 316L stainless 2.0 mm for the runaway mode emergency exhaust riser, 316L stainless with 250 C smoke spill fire rating per AS 1530.4 for the duct sections passing through the fire-rated room boundary. SBKJ machinery for Neuron Mobility-scale depot ventilation: SBAL-V auto duct line in 316L stainless 1.5 to 2.0 mm produces the rectangular exhaust trunk. SBFB-1500 spiral tubeformer produces round vertical riser to the roof discharge. SBSF-1525 stitchwelder handles the heavy-gauge fire-rated sections at the room boundary and the abatement equipment connection.

Mobility scooter Permobil — Pride Mobility, Sunrise Medical and Australian mobility scooter manufacturing

Australian mobility scooter manufacturing supports the aged-care, disability and personal mobility sector with a parallel envelope to e-bike manufacturing but at smaller per-unit battery capacity and larger chassis dimensions. The Australian operators include Pride Mobility, Drive Medical, Pioneer Mobility, Heartway, Cool Mobility, Top Daze, Australian Mobility, Quingo, Heartway USA, Permobil (premium powered wheelchair), Sunrise Medical (premium powered wheelchair), Pride USA, Drive Medical Sunrise Australia and Australia Mobility Scooters. The product range spans single-rider three-wheel and four-wheel mobility scooters, full-power wheelchairs, and bariatric variants.

The Permobil and Sunrise Medical premium powered wheelchair lines run a process envelope closer to bicycle frame manufacturing than to commodity mobility scooter assembly. CNC-machined aluminium and steel chassis with TIG welded joints (aluminium fines NFPA 484 hazard), powder coat or wet paint finish (Zone 1 paint booth), seat foam moulding (PU foam dust at 5 mg/m3 WES inhalable plus isocyanate residual emission from the foam moulding process), electronics fit-out (Garmin-style displays plus joystick controllers), Li-ion battery integration (Zone 2 BESS) and final QC.

Pride Mobility and Drive Medical commodity mobility scooter assembly runs a simpler envelope dominated by chassis paint, battery integration and assembly. Chassis paint booth Zone 1 at 0.5 m/s cross-draft. Battery commissioning at 36V or 48V and 200 to 600 Wh per scooter — total aggregate capacity at a typical assembly facility reaches 50 to 200 kWh, sitting at or above the NFPA 855 threshold of 20 kWh.

The seat and cushion foam moulding process at Permobil and Sunrise Medical generates polyurethane foam off-gas. PU foam is produced by reaction of isocyanate (TDI or MDI at 0.005 ppm WES) with polyol plus catalyst plus blowing agent. The reaction is exothermic with peak temperature of 80 to 120 C and brief peak isocyanate emission during the rise and gel phase. Ventilation envelope on the foam moulding bay is 6 to 12 ACH continuous plus localised exhaust above each mould at 0.5 to 1.0 m/s capture velocity, ducted to a regenerative thermal oxidiser (RTO) or activated carbon adsorber.

Ductwork specification: 316L stainless 1.5 mm for the paint booth exhaust trunk (isocyanate aerosol attacks zinc), galvanised 1.0 mm for general supply and assembly bay (SBAL-V at GAL), 316L stainless for the foam moulding bay exhaust (isocyanate plus blowing agent attacks zinc), 316L stainless for the Li-ion battery commissioning room exhaust. SBKJ machinery: SBAL-V at GAL for supply, SBAL-V at 316L for process exhaust, SBFB-1500 spiral for the round runs to the abatement equipment, SBSF-1525 stitchwelder for fire-rated bake oven sections.

Surfboard styrene Mark Richards — Australian surfboard SUP kayak Hobie composite manufacturing

Australian surfboard manufacturing concentrates on the Gold Coast, Sydney's Northern Beaches and the Sunshine Coast with the heritage operators (Mark Richards, Tom Carroll, Murray Smith, Simon Anderson, Phil Byrne) plus the contemporary leaders Mick Fanning Softboards, JS Industries, Channel Islands Surfboards Australia, Pyzel, Sharpeye, Webber Surfboards plus the international brands operating Australian licensing or assembly (Surftech, Firewire). SUP and kayak manufacturing at Hobie Australia, Wilderness Systems Australia and Old Town Canoe runs adjacent processes with larger part geometry. The Hobie Australia kayak, SUP and small catamaran sailboat facility runs a fibreglass hand layup envelope similar in chemistry to marine boatbuilder but on smaller, lower-volume part geometries.

The surfboard glassing process runs polyester resin (with styrene as the reactive monomer at 50 ppm WES TWA and 100 ppm STEL), vinylester resin (lower styrene, higher cost), or epoxy resin (no styrene but epoxy amine sensitiser hazard) over a PU foam blank, EPS foam Pop-Out (sandable polystyrene foam) or hollow composite construction. Glass fibre cloth or carbon fibre or aramid lay over the blank with multiple resin coat layers. Hand-applied with brush, roller or squeegee on the glassing bench.

The styrene capture strategy is layered. Local exhaust ventilation at every active glassing bench — typically a slot canopy hood at 0.5 to 1.0 m/s capture velocity drawn back through a labyrinth or activated carbon filter — handles the resin face emission during glassing. General ventilation across the shaping and glassing room at 4 to 6 air changes per hour dilutes residual vapour and prevents accumulation in roof voids. Most Surf Industries Australia (SIA) member shops design for an operator breathing-zone concentration under 20 ppm to provide adequate margin for hot summer days.

The PU foam blank shaping process generates respirable PU dust at 5 mg/m3 WES inhalable. The shaping bay uses planer, sander and grinder tools on the PU blank, generating fine dust that must be captured through localised dust extraction at every shaping station at 0.5 to 1.0 m/s capture velocity. Sandable EPS foam Pop-Out surfboard construction at Mick Fanning Softboards and selected other operators generates polystyrene dust at 10 mg/m3 inhalable.

FCS box fin and vacuum-formed plastic component fitting on the production board uses contact cement and adhesive solvent (toluene 50 ppm WES, MEK 200 ppm WES, ethyl acetate 200 ppm WES). LEV at every adhesive application station at 0.5 to 1.0 m/s capture velocity. Ductwork 316L stainless because solvent attacks galvanised zinc.

Hobie Australia's kayak, SUP and small catamaran sailboat facility runs the same fibreglass envelope at larger part scale. Hobie Cat catamaran assembly adds rotational moulding (rotomould) for polyethylene hull components at 200 to 300 C process temperature with associated PE off-gas at low concentration but requiring general dilution. Boomerang Aussie Boards and Topaz Surf run parallel small-scale operations.

Recreational personal watercraft (PWC) operators — Sea-Doo Australia, Yamaha WaveRunner Australia, Kawasaki Jet Ski Australia — operate import, assembly and commissioning facilities rather than full-build, but the commissioning includes outboard engine test, fibreglass hull repair on warranty work, and topcoat touch-up. HVAC load 3 to 8 m3/s installed per facility with the fibreglass repair zone driving the styrene capture requirement.

Ductwork specification: 316L stainless 1.5 mm for the glassing bay exhaust trunk (polyester resin attacks zinc), galvanised 1.0 mm or polypropylene for the PU foam shaping dust collection (dry PU dust does not corrode galvanised), 316L stainless for the adhesive solvent exhaust at FCS fin fitting. SBKJ machinery: SBAL-V at 316L for the glassing bay exhaust, SBFB-1500 spiral for the round PU foam dust collection trunk, SBAL-V at GAL for general supply.

Australian custom titanium frame Bastion — Bastion Cycles, Ti Cycles, Curve Cycling and ACBBC

Australian custom titanium bicycle frame manufacturing represents the high-end of the global bike industry, with Bastion Cycles (Melbourne — 3D-printed titanium frame elements with carbon composite tube), Ti Cycles, Curve Cycling, Llewellyn Custom Bicycles, Bombtrack Bicycle Australia and the Australian Custom Bicycle Builder Council (ACBBC) member network producing some of the world's most respected custom titanium and steel frames. The market is small but the engineering content is high — each frame is a one-off geometry, each weld is a hand operation, and each finish is a custom paint or anodise specification.

The Bastion Cycles workflow at Melbourne combines titanium 3D printing (powder bed fusion PBF on titanium 3Al-2.5V) with carbon composite tube assembly. The PBF machine produces near-net-shape titanium lugs that are post-processed through HIP (Hot Isostatic Pressing at 900 C and 100 bar argon), heat treatment (annealing at 700 to 800 C), support removal, surface finish and final inspection. The HIP and heat treatment ovens are governed by NFPA 86 and AS 1530.4 with full hazardous area assessment. The carbon composite tubes are pre-preg laid up and autoclave-cured at 180 to 200 C and 7 bar, then bonded into the titanium lugs with structural adhesive (Henkel Loctite Hysol, 3M Scotchweld, Sika SikaForce).

Ti Cycles, Curve Cycling and Llewellyn Custom run conventional titanium frame construction — CNC machined titanium tube and lug components, TIG welded with argon shield gas, post-weld heat treatment in dedicated ovens. The TIG welding on thin-wall titanium tube (0.5 to 1.0 mm wall thickness) uses purge gas inside the tube to prevent oxidation on the inside diameter, with copper-beryllium (Cu-Be) backing strips on the outside diameter to support the weld pool. Cu-Be backing is a heritage technique that is being phased to non-Be alternatives (H13 stainless tooling, quartz backing) because Be inhalable is regulated at 0.002 mg/m3 WES — one of the most restrictive metallic exposure standards in the WES schedule. Be-containing dust from machining or grinding the Cu-Be backing demands closed-cabinet TIG welding with fully captured fume extraction at 0.5 m/s capture velocity through HEPA pre-filter into a sealed disposal stream.

Titanium 3Al-2.5V dust from CNC machining and grinding is NFPA 484 Class D combustible metal — same envelope as aluminium with Kst 200 to 350 bar.m/s and MIE 10 to 80 mJ. Titanium dust is water-reactive at elevated temperature, producing hydrogen gas when wetted at temperatures above 200 C. Water deluge fire suppression is restricted in the same way as aluminium. Class D extinguishing media (Met-L-X, Pyrene G-Plus, Lith-X) at every machining and grinding station.

Ductwork on titanium dust collection is 316L stainless 1.5 mm with conductive seam construction, all joints bonded and grounded to less than 10 ohms, rotary airlock or air gap isolation at the collector. NFPA 484 explicitly prohibits sharing titanium dust ductwork with steel or aluminium dust ductwork — the mixed reactivity creates ignition risk. Bombtrack Bicycle Australia runs a heritage steel frame line in parallel with titanium custom work — the steel frame builder dust is collected separately under AS 3957 dust hazard classification but without the Class D combustible metal overlay.

Air volume for an Australian custom titanium frame builder is 5 to 12 m3/s installed. Bastion Cycles-scale (Melbourne) runs 10 to 15 m3/s installed because the 3D printing post-processing adds ventilation load. Llewellyn Custom and Ti Cycles run 5 to 8 m3/s installed because the operations are smaller scale.

SBKJ machinery for Australian custom titanium frame builders: SBAL-V auto duct line in 316L stainless variant produces 1.5 mm rectangular duct for the paint booth exhaust and the titanium dust collection plenum. SBFB-1500 spiral tubeformer in 316L stainless produces 100 to 500 mm round duct for the titanium dust transport and the post-cure paint bake oven exhaust. SBSF-1525 stitchwelder handles heavy-gauge sections at the HIP oven and the heat treatment oven exhaust.

Codes and standards — the personal transport manufacturing regulatory stack

No bicycle, e-bike, e-scooter, mobility scooter, recreational watercraft or personal transport manufacturing ventilation design is complete without explicit verification against a stack of overlapping standards. The twenty primary references below are the references for Australian fit-outs; in any given project at least ten apply and often all twenty.

AS 1668.2 — The use of ventilation and air-conditioning in buildings. Section 2 sets minimum outdoor air rates for occupied spaces and section 4 sets specific requirements for industrial processes including composite manufacturing, paint booth, dust collection and battery commissioning. The default reference for any non-specialist process zone in an Australian light manufacturing facility.

AS 1668.1 — The use of ventilation and air-conditioning in buildings — Fire and smoke control. Section 4 covers fire and smoke spill duct requirements for buildings with battery storage, fuel store and paint cure oven.

AS 4254 (parts 1 and 2) — Ductwork for air-handling systems in buildings. Part 1 covers flexible duct and part 2 covers rigid duct. The standard sets pressure class, leakage class, materials, gauges, seam construction, joint construction and support requirements for the duct itself. All SBKJ machinery is configured to fabricate AS 4254 compliant duct as the default Australian output.

AS 1530.4 — Methods for fire tests on building materials, components and structures — Fire-resistance test of elements of construction. Battery rooms, paint bake ovens and resin stores typically require 60 to 240 minute fire-resistance ratings. SBSF-1525 stitchwelder handles the 250 C smoke spill fire-rated duct sections.

AS/NZS 60079 (series) — Explosive atmospheres. The hazardous area zone classification standard. Paint booth interior is Zone 1, paint booth surrounds and resin store are Zone 2, vehicle fuel test bay is Zone 1, paint cure oven is Zone 2 during purge, Li-ion BESS charging bay is Zone 2, LPG forklift charging is Zone 2.

AS 3957 — Hazardous areas — Dust hazards. The dust analogue of AS/NZS 60079. Zone 20, 21 and 22 cover combustible dust atmospheres. Aluminium grinding around Apollo Bikes, Reid Cycles, Giant Bicycles assembly triggers Zone 22 around the collector. Titanium dust around Bastion Cycles, Ti Cycles and ACBBC members triggers Zone 22 with full Class D overlay. Composite carbon fibre dust around Bastion and Curve Cycling triggers Zone 22 with lower deflagration severity. Polystyrene dust around Mick Fanning Softboards Pop-Out construction triggers Zone 22.

AS 1940 — The storage and handling of flammable and combustible liquids. Covers paint store, resin store, adhesive store, solvent store, paint thinner store, propane LPG store and Li-ion electrolyte (DMC, EMC, EC) store. Sets bunding, ventilation, separation and fire-resistance rules.

AS/NZS 5139 — Electrical installations — Safety of battery systems for use with power conversion equipment. The Australian Li-ion battery installation standard with separate residential and commercial guidance. Sets the envelope for Li-ion battery commissioning rooms, charging banks, e-bike battery test and e-scooter fleet depot.

NFPA 484 — Standard for Combustible Metals. The international best-practice reference for aluminium, titanium and magnesium handling, cross-referenced with NFPA 660 in the 2025 consolidation. The standard covers dust collection design, explosion protection, ignition source control, water reactivity (Al + H2O = Al(OH)3 + H2; Ti + H2O at elevated temperature similar) and Class D extinguishing media (Met-L-X, Pyrene G-Plus, Lith-X).

NFPA 660 (2025). The consolidated combustible dust standard that replaces NFPA 652, 654, 655, 664 and 484 in a single document. Bicycle and personal transport fit-outs in 2026 reference NFPA 660 in parallel with the legacy NFPA 484 because some elements of NFPA 484 remain authoritative for combustible metal even after consolidation.

NFPA 855 — Standard for the Installation of Stationary Energy Storage Systems. Governs Li-ion BESS where aggregate room capacity exceeds 20 kWh. Covers siting separation, fire detection, fire suppression (Stat-X aerosol, Novec 1230, water mist, FM-200), explosion control and ventilation for stationary battery rooms. The critical reference for e-bike commissioning, e-scooter fleet depot, mobility scooter battery integration and indoor exercise equipment battery commissioning.

NFPA 86 — Standard for Ovens and Furnaces. Governs post-cure paint bake oven at 60 to 80 C, powder coat oven at 180 to 200 C, epoxy primer cure at 100 to 120 C, autoclave composite cure at 180 to 200 C and 7 bar, plus HIP and heat treatment ovens at Bastion Cycles 600 to 900 C. Pre-purge, flame supervision, high-temperature limit and explosion relief apply scaled to the oven volume.

NFPA 30 — Flammable and Combustible Liquids Code. Covers paint thinner, adhesive, propane LPG, Li-ion electrolyte and resin solvent storage and handling.

NFPA 13 — Standard for the Installation of Sprinkler Systems. Sets the sprinkler design density for industrial occupancy including bicycle and personal transport manufacturing. AS 2118 is the parallel Australian standard.

NFPA 70 NEC — National Electrical Code. The US NEC is referenced in parallel with AS/NZS 3000 wiring rules for any export build. Article 500 covers hazardous locations equivalent to AS/NZS 60079.

AS/NZS 1554.1 and AS/NZS 1554.6 — Structural steel welding. Part 1 covers carbon steel including 4130 chromoly frame stock at Llewellyn Custom and traditional steel frame builders. Part 6 covers stainless welding. AS 1665 covers aluminium welding (relevant for every aluminium bike frame). AS 1865 covers titanium welding (Bastion Cycles, Ti Cycles, Curve Cycling, Llewellyn Custom).

ISO 9001, ISO 14001 and ISO 45001 OHS. Quality, environmental and occupational health and safety management system standards. Most BIA and AusCycling member shops operate to at least ISO 9001, with ISO 14001 and ISO 45001 increasingly common at the larger assembly facilities.

Vehicle Safety Standards Bulletin VSB14 and VSB6. Federal Australian Design Rules (ADR) covering e-bike and e-scooter classification, speed limit at 25 km/h, helmet, light, reflector, bell and brake mandatory compliance. Drives the testing and commissioning ventilation envelope at every production facility. ADR 36 and ADR 37 set the relevant performance requirements.

State Personal Mobility Devices (PMD) regulation. NSW PMD, VIC PMD, QLD, SA, WA, TAS, ACT, NT — each state Department of Transport regulates e-scooter and PMD on-road use with specific helmet, light, speed and operating envelope requirements. Bicycle Network Victoria, NSW Roads (TfNSW), TMR (Transport and Main Roads QLD), VicRoads and Department of Transport WA each publish state-specific guidance.

AS/NZS 5048 — Trailer. Relevant for e-bike trailer cargo applications and bicycle trailer manufacturing.

IMCI International Marine Certification Institute. Recreational watercraft, kayak and SUP certification body for export builds.

AS 1900, AS 1801, AS 3838 and AS 2063. Helmet construction standards. AS 1900 covers helmet construction general. AS 1801 covers occupational protective helmet. AS 3838 covers cycle helmet. AS 2063 covers motorcycle helmet. ISO 4210 governs bicycle test methods.

Aluminium NFPA 484 — bicycle frame builder dust collection

Aluminium dust from grinding, sanding, polishing and machining of 6061, 7005-T6 and proprietary aluminium alloy frames at Apollo Bikes Sydney Melbourne, Reid Cycles, Giant Bicycles Australia (Taiwan-owned with local assembly), Merida Australia, Polygon Australia, Norco Bikes Australia, Trek Bicycle Australia, Specialized Australia, Cube Bikes Australia, Cube Acid e-bike, Reid Original e-bike, Polygon e-bike, and the broader aluminium bicycle and e-bike frame builder network is regulated under NFPA 484 (cross-referenced with NFPA 660 in 2025) as Class D combustible metal.

The deflagration parameters drive the design. Aluminium fines under 500 microns produce Kst values of 200 to 415 bar.m/s depending on alloy and particle size — Dust Hazard Class St-2 with possibility of escalation to St-3 on very fine fines under 50 microns. Pmax (maximum explosion pressure) is 10 to 12 bar. The minimum ignition energy (MIE) is 5 to 50 mJ depending on humidity, particle size and alloy — extremely low compared to wood dust at 100 mJ or carbon dust at 200 mJ. A static discharge from an ungrounded duct is sufficient to ignite a fines deflagration.

Capture at source through localised exhaust at every grinding, sanding and polishing station at 18 to 23 m/s transport velocity per NFPA 91. Wet collector (water-bath scrubber) is the preferred technology for aluminium fines because it captures the fines in water and quenches any deflagration before it can propagate. Dry collectors (cyclonic or bag house) are acceptable with explosion suppression (chemical isolation valve and explosion vent) and explosion isolation (rotary airlock or air gap) between the upstream ductwork and the collector. NFPA 484 explicitly requires explosion isolation to prevent flame and pressure wave propagation back up the duct to ignite further fines.

Water deluge fire suppression on aluminium dust is restricted. Al plus H2O produces aluminium hydroxide (Al(OH)3) plus hydrogen gas (H2). Hydrogen evolution can convert a small fire into a deflagration. Specialist Class D extinguishing media is mandatory — Met-L-X (sodium chloride base), Pyrene G-Plus (graphite base) or Lith-X (graphite base) at every grinding station and adjacent to the dust collector. Class D extinguishers are non-conductive and absorb heat without producing reactive gas.

Ductwork specification for aluminium dust collection: galvanised 1.2 mm minimum with conductive seam sealant, or 316L stainless 1.5 mm where additional corrosion margin is required. All joints bonded and grounded to a single equipotential point at less than 10 ohms resistance — the bonding test is a discrete commissioning step before the duct is brought into service. Rotary airlock or air gap isolation between the duct and the collector. NFPA 484 explicitly prohibits sharing aluminium dust ductwork with steel or titanium dust ductwork.

Dust collection ductwork on an Apollo Bikes or Reid Cycles-scale aluminium bicycle line typically runs 3 to 8 m3/s through 10 to 25 grinding and polishing stations. A Giant Bicycles Australia or Merida-scale assembly facility runs 4 to 10 m3/s installed. Engine for the fan must be Ex e or Ex d rated per AS/NZS 60079 because the fan operates downstream of the dust collector and any breakthrough of fines past the collector reaches the fan.

SBKJ machinery for aluminium dust collection: SBFB-1500 spiral tubeformer in galvanised 1.2 mm heavy gauge produces the round dust transport ducts with conductive seam construction. SBAL-V auto duct line in galvanised or 316L stainless variant produces the rectangular plenum and ductwork at the collector inlet. SBSF-1525 stitchwelder handles the heavy-gauge collector housing and the explosion vent ducts.

Frame paint booth isocyanate — Apollo, Reid, Bastion, Pride Mobility chassis paint

Frame topcoat application using two-component polyurethane systems (Akzo Nobel, Dulux, Jotun, Tiger, IGI Powder, PPG, Imron, Awl-Grip) generates isocyanate aerosol with TDI (toluene diisocyanate) and MDI (methylene diphenyl diisocyanate) components at a workplace exposure standard of 0.005 ppm TWA. This is twenty times more restrictive than styrene and ten times more restrictive than most automotive paint solvents. Isocyanate is a known asthmagen and skin sensitiser with chronic effects including occupational asthma, contact dermatitis and endocrine disruption.

The frame paint booth is classified AS/NZS 60079 Zone 1 because isocyanate aerosol combined with the solvent carrier (xylene 50 ppm WES, MEK 200 ppm, ethyl acetate 200 ppm, MIBK 50 ppm) forms an explosive atmosphere within the booth volume during active spraying. Booth construction is fire-rated steel panel with non-sparking light fittings, spark-free electrical switchgear outside the booth envelope, and dual-redundant interlocked extract fans on emergency power. Loss of either extract fan immediately stops the operator's compressor and triggers an alarm at the booth panel.

Airflow inside the booth is downdraft at 0.4 to 0.5 m/s leaf-canopy velocity for premium custom titanium frame work (Bastion Cycles, Curve Cycling, Llewellyn Custom) and cross-draft at 0.5 to 0.6 m/s for production aluminium and steel frame work (Apollo Bikes, Reid Cycles, Giant Bicycles Australia, Merida Australia, Pride Mobility scooter chassis, Permobil powered wheelchair chassis). The booth volume on a production bicycle frame paint operation is 30 to 100 m3, smaller than the marine boatbuilder isocyanate booth (200 to 2,000 m3) because the frame geometry is much smaller than a yacht hull.

AS 4114.2 section 4 sets the booth construction and ventilation rules. NFPA 33 chapter 7 applies as overlay for export builds. The face velocity floor in both standards is 0.5 m/s measured 100 mm above the booth floor during active spraying. Exhaust duct termination is 1.8 m above the booth roof and 6 m horizontal from any opening or property line.

Powder coat as alternative to wet paint uses electrostatic dry powder application with cure in a separate oven at 180 to 200 C for 20 to 30 minutes. The powder coat booth does not generate isocyanate (no liquid coating, no solvent carrier) but the powder dust is combustible per AS 3957 with explosion vent required on the booth and the powder recovery cyclone. NFPA 660 (2025) covers the powder coat dust hazard. Apollo Bikes and Reid Cycles run parallel wet paint and powder coat lines depending on finish specification — premium frames get wet paint with metallic, pearl and clearcoat layers, while commodity frames get powder coat single colour.

Anodise on aluminium frames runs three chemistries — chromate conversion (legacy, phasing out for Trivalent chromium because Cr VI is regulated at 0.05 ppm STEL), TSA (Tartaric Sulfuric Anodise — non-chromate), BSAA (Boric Sulfuric Anodise — non-chromate). The anodise bath line generates HF (hydrogen fluoride at 1.8 ppm STEL — the killer) during the Al pre-paint etch step. Anodise bay ventilation runs 8 to 15 ACH continuous with HF detection at 0.5 ppm action threshold. Ductwork 316L stainless because HF attacks zinc within hours.

Ductwork specification: 304L stainless 1.5 to 2.0 mm for the wet paint spray exhaust riser (isocyanate aerosol attacks zinc within 6 to 12 months) and 316L stainless 1.5 mm for the post-cure bake oven duct at 60 to 80 C and the powder coat cure oven duct at 180 to 200 C. 316L stainless for the anodise bay HF exhaust.

SBKJ machinery for the frame paint booth: SBAL-V auto duct line in 316L stainless variant produces 1.5 mm rectangular duct for the booth exhaust trunk. SBFB-1500 spiral produces the round exhaust riser to the abatement equipment and the stack discharge to atmosphere. SBSF-1525 stitchwelder handles the heavy-gauge bake oven duct at 80 C and the powder coat oven duct at 200 C.

Composite frame post-cure machining and CFRP dust

Post-cure CNC machining of cured composite (carbon fibre, aramid Kevlar, glass fibre) bicycle frame parts generates respirable composite fibre dust at 5 mg/m3 WES inhalable. The fibre geometry (5 to 10 micron diameter, 50 to 1,000 micron length after machining) places carbon and aramid composite dust in the respirable range with potential for chronic inflammatory response in the lower lung. Glass fibre dust has lower regulatory concern but the same physical capture requirement.

Capture velocity at every machining station is 0.5 to 1.0 m/s at the hood face, with transport velocity through the duct at 18 to 23 m/s per NFPA 91. The dust is collected through a HEPA pre-filter (99.97 percent at 0.3 micron) into a sealed drum or bag house with electrically conductive filter media because the dry composite fibre carries a significant static charge. NFPA 660 (2025) treats carbon fibre dust as combustible with Kst 50 to 100 bar.m/s and the dust collector requires explosion venting where the collected volume exceeds 0.5 m3.

Australian operators running composite frame post-cure machining include Bastion Cycles (Melbourne — 3D-printed titanium plus carbon tube hybrid construction), Curve Cycling, the OEM assembly lines of Specialized Turbo, Trek Madone, Giant TCR, Pinarello Dogma, BMC Roadmachine, Cervelo S5, Cannondale SuperSix, Trek Top Fuel, Apollo and selected race frame builders. The composite dust collection load is typically 1 to 4 m3/s installed at a custom titanium and composite shop, and 3 to 8 m3/s installed at an OEM CFRP assembly line.

Ductwork is galvanised 1.2 mm or 316L stainless 1.5 mm with conductive seam construction and full equipotential bonding to less than 10 ohms resistance. SBKJ SBFB-1500 spiral tubeformer for round dust transport and SBAL-V in 316L stainless variant for rectangular plenum at the dust collector inlet are the standard outputs.

Recreational watercraft — Sea-Doo, Yamaha WaveRunner, Kawasaki Jet Ski PWC and Hobie Australia

Australian recreational personal watercraft (PWC) operators run import, assembly and commissioning facilities rather than full-build. Sea-Doo Australia, Yamaha WaveRunner Australia and Kawasaki Jet Ski Australia import complete vehicles with final assembly, electronics fit-out, paint touch-up and pre-delivery inspection. Each facility runs 3 to 8 m3/s installed HVAC with fibreglass repair zone (styrene capture), outboard engine test bay (CO and NO2 capture), paint touch-up booth (isocyanate Zone 1) and parts store (AS 1940 flammable liquid).

Hobie Australia's kayak, SUP and small catamaran sailboat facility runs full fibreglass hand layup at smaller part scale than marine boatbuilders. The kayak and SUP hand layup process is essentially identical to the surfboard glassing process — polyester or epoxy resin over a foam blank or hollow composite construction with glass fibre or carbon fibre cloth. The Hobie Cat catamaran assembly adds rotational moulding (rotomould) for polyethylene hull components at 200 to 300 C process temperature.

Wilderness Systems Australia and Old Town Canoe run polyethylene rotomould kayak manufacturing with PE off-gas at low concentration. The rotomould oven runs at 250 to 350 C with PE thermal decomposition producing trace aldehydes, ketones and CO. Ventilation envelope on the rotomould bay is 8 to 15 ACH continuous plus stack exhaust above the oven at 1 to 3 m3/s.

Recreational off-road vehicle distributors — Polaris Sportsman ATV, Yamaha Grizzly ATV, Honda TRX ATV, Kawasaki Mule UTV with Yamaha Australia, Honda Australia and Polaris Australia as the distributor channel — run import, assembly and dealer service facilities. The HVAC envelope is dominated by engine test and commissioning (CO at 30 ppm WES) rather than paint or composite work. Vehicle test bay classified AS/NZS 60079 Zone 1 during fuel handling, Zone 2 during engine commissioning.

Ductwork specification: 316L stainless 1.5 mm for the fibreglass repair and PWC paint touch-up exhaust, 316L stainless for the engine test bay exhaust, galvanised 1.0 mm for general supply and warehouse. SBKJ machinery: SBAL-V at 316L for process exhaust, SBFB-1500 spiral for round dust collection and engine stack, SBAL-V at GAL for general supply.

Indoor exercise and spin equipment — Wahoo, Concept2, Stages, Echelon, Peloton, Force USA, Body Solid

Australian indoor exercise equipment manufacturing supports Wahoo Fitness Australia, Concept2 Rowing Machine, Stages Indoor Cycling, Lifecore, Schwinn AC Power, Echelon, Peloton Australia, MyZone, TRX, Australian gym equipment manufacturer Force USA and Body Solid Australia. The process mix overlaps with bicycle assembly on geometry, motor, electronics and braking systems but with different paint and fit-out requirements.

The Australian indoor exercise sector concentrates on premium spin bike assembly (Stages Indoor Cycling, Echelon, Peloton Australia, Schwinn), rowing machine assembly (Concept2), gym equipment manufacturing (Force USA — Australian manufacturer at Brisbane, Body Solid Australia) and electronic fitness accessory assembly (Wahoo, MyZone, TRX). Each facility runs 3 to 8 m3/s installed HVAC with chassis paint booth (Zone 1 isocyanate), electronics fit-out (clean assembly), Li-ion battery integration on cordless devices (Zone 2 BESS) and final QC.

Force USA at Brisbane is one of the few Australian-manufactured gym equipment brands with a full local production line. The process runs steel and aluminium chassis fabrication (welding fume, aluminium fines per NFPA 484 on the aluminium components), powder coat finish at 180 to 200 C cure, upholstery fit-out (foam padding plus vinyl or leather cover) and final assembly. Total HVAC load 5 to 10 m3/s installed.

Body Solid Australia runs an Australian assembly and distribution operation at a smaller scale. Wahoo Fitness Australia, MyZone and TRX run electronics-focused assembly with minimal paint or composite work.

Ductwork specification: galvanised 1.0 mm for general supply and assembly bay (SBAL-V at GAL), 316L stainless 1.5 mm for the chassis paint booth exhaust (SBAL-V at 316L), galvanised 1.2 mm for the chassis welding fume capture (SBFB-1500 spiral). SBKJ machinery: SBAL-V at GAL for general supply, SBAL-V at 316L for process exhaust, SBFB-1500 spiral for round runs.

Tube prep, mitre and TIG weld bay — steel 4130 chromoly, aluminium, titanium

The tube prep and weld bay is the heart of any custom or assembly bicycle frame builder. Steel 4130 chromoly tube at Llewellyn Custom Bicycles, Bombtrack Bicycle Australia and the traditional steel frame ACBBC members. Aluminium 6061 and 7005-T6 tube at Apollo Bikes, Reid Cycles, Giant Bicycles Australia assembly. Titanium 3Al-2.5V tube at Bastion Cycles, Ti Cycles, Curve Cycling, Llewellyn Custom and selected ACBBC members. Carbon fibre CFRP tube at Bastion Cycles (3D-printed titanium lugs bonded into pre-preg carbon tube), Curve Cycling and the OEM CFRP assembly lines.

TIG welding on each material has a distinct fume signature. Steel chromoly welding generates manganese (0.2 mg/m3 respirable WES) and iron oxide (5 mg/m3 WES) fume. Aluminium welding generates aluminium oxide, magnesium oxide (on 5XXX series) and ozone fume — total aluminium 1 mg/m3 WES inhalable. Titanium welding generates titanium oxide fume — total titanium 5 mg/m3 WES inhalable but with NFPA 484 combustible metal overlay on the dust. Stainless welding (where stainless is used for rigging or accessory hardware) generates chromium VI (0.05 mg/m3 STEL — the killer) and nickel (1 mg/m3 inhalable WES) fume.

LEV at every TIG welding station at 0.5 to 1.0 m/s capture velocity through a flexible articulated arm. The flexible arm extends 1.5 to 2.5 m from a fixed plenum, allowing the operator to position the capture hood within 100 to 200 mm of the welding torch tip. Each arm is independently damper-controlled with airflow monitoring and alarm at any flow drop below 80 percent of design.

The Cu-Be (copper-beryllium) flux backing question at titanium frame builders deserves dedicated attention. Cu-Be is a heritage technique for thin-wall titanium welding where the backing strip supports the molten weld pool from the back side. Be inhalable is regulated at 0.002 mg/m3 WES — one of the most restrictive metallic exposure standards in the WES schedule. Be-containing dust from grinding or machining the Cu-Be backing demands closed-cabinet TIG welding with H13 stainless or quartz backing as the preferred non-Be alternative, or fully captured fume extraction at 0.5 m/s capture velocity through HEPA pre-filter into a sealed disposal stream. Most Australian custom titanium frame builders have phased to H13 or quartz backing to eliminate the Be exposure.

Total tube prep and weld bay HVAC load on a custom bicycle frame builder is 1 to 3 m3/s installed. A production aluminium assembly facility runs 3 to 6 m3/s. The Bastion Cycles 3D printing post-processing bay adds an additional 1 to 2 m3/s for the HIP and heat treatment oven ventilation.

Paint booth, powder coat and anodise — frame finishing operations

Frame finishing operations cover three primary chemistries — wet paint (two-pack polyurethane with isocyanate hazard), powder coat (electrostatic dry powder with combustible dust hazard) and anodise (electrochemical on aluminium with HF pre-etch hazard). Each chemistry has a distinct ventilation envelope.

Wet paint operations dominate at premium custom frame builders (Bastion Cycles, Curve Cycling, Llewellyn Custom, Ti Cycles, ACBBC members) and at the high-finish end of production assembly (Apollo Premium, Reid Custom). The booth construction is fire-rated steel panel with downdraft or cross-draft airflow at 0.4 to 0.6 m/s. Booth volume on a frame paint operation is 30 to 100 m3, much smaller than the marine boatbuilder isocyanate booth (200 to 2,000 m3). Booth exhaust 2 to 4 m3/s per booth station.

Powder coat operations dominate at the commodity end of bicycle and personal mobility manufacturing (Apollo commodity, Reid commodity, Pride Mobility chassis, Permobil chassis, mobility scooter chassis, indoor exercise equipment chassis). The booth construction is open or partially enclosed with electrostatic dry powder application and direct overspray recovery through cyclone or filter. Cure oven runs at 180 to 200 C for 20 to 30 minutes. The booth itself does not generate isocyanate (no solvent carrier) but the powder dust is combustible per AS 3957 with explosion vent required on the booth and the powder recovery cyclone.

Anodise operations apply on aluminium frame builders for either decorative finish (anodise colour) or protective coating (BSAA boric sulfuric anodise non-chromate for aerospace-grade corrosion protection). The anodise bath line includes alkaline clean, acid de-smut, anodise bath (sulfuric acid 15 to 20 percent at 20 to 30 C), seal bath (hot water or nickel acetate seal) and rinse stages. The Al pre-paint etch step generates HF (hydrogen fluoride at 1.8 ppm STEL — the killer). Anodise bay ventilation runs 8 to 15 ACH continuous with HF detection at 0.5 ppm action threshold. Ductwork 316L stainless because HF attacks zinc within hours.

Chromate conversion (Cr VI 0.05 mg/m3 STEL — the killer) is phasing out across all Australian aluminium bicycle manufacturers in favour of Trivalent (Cr III) conversion or BSAA non-chromate anodise. Where chromate conversion remains in service (legacy operations or non-critical applications), the bath ventilation runs 12 to 20 ACH continuous with full LEV at every operator interface point.

Air volumes by facility scale and product mix

Air volume design is product-mix and scale-dependent. The following ranges cover typical Australian operations.

Aluminium bicycle assembly facility (Apollo Bikes Sydney Melbourne, Reid Cycles, Giant Bicycles Australia, Merida Australia, Cube Bikes Australia, Norco Australia, Trek Australia, Specialized Australia): 5,000 to 50,000 frames per year. 8 to 18 m3/s total supply. Frame tube prep, mitering and weld bay 3 to 6 m3/s LEV extract for aluminium fines plus welding fume. Paint booth and powder coat 2 to 4 m3/s exhaust per booth station. Post-cure bake oven 0.5 to 1 m3/s exhaust at 60 to 80 C. Assembly and wheel build 1 to 2 m3/s general dilution. QC and test bay 0.5 to 1 m3/s plus localised LEV at battery commissioning. Administration and showroom 1 to 3 m3/s.

Custom titanium 3D-printed frame builder (Bastion Cycles, Ti Cycles, Curve Cycling, Llewellyn Custom): 50 to 500 frames per year. 5 to 12 m3/s total supply. Composite dust capture and titanium dust capture dominating the load. Layup room ISO 8 ambient or unclassified clean at 22 plus or minus 2 C, 50 plus or minus 10 RH. HIP oven and heat treatment ventilation at 0.5 to 1 m3/s. Paint booth 1 to 2 m3/s per booth station.

Surfboard and SUP builder (Mick Fanning Softboards, JS Industries, Channel Islands Surfboards Australia, Hobie Australia, Pyzel, Sharpeye, Webber): 500 to 10,000 boards per year. 10 to 22 m3/s total supply with styrene capture and PU foam dust collection dominating. Glassing room 5 to 12 m3/s LEV at the glassing benches. Shaping bay 3 to 6 m3/s dust collection. Adhesive and fin fitting 1 to 2 m3/s LEV.

E-scooter fleet depot (Neuron Mobility, Bird, Lime, Beam, Tier, Voi): 500 to 5,000 vehicle fleet. 15 to 35 m3/s installed. BESS Li-ion charging bay exhaust dominating at 8 to 20 m3/s through 316L stainless ductwork. Vehicle commissioning bay 2 to 4 m3/s general dilution. Parts store and warehouse 1 to 2 ACH general dilution.

Mobility scooter and powered wheelchair manufacturer (Pride Mobility, Permobil, Sunrise Medical, Drive Medical): 1,000 to 20,000 units per year. 6 to 15 m3/s installed. Chassis paint booth 2 to 4 m3/s per booth station. Seat foam moulding bay 2 to 4 m3/s LEV at every mould (isocyanate plus blowing agent). Battery commissioning at 36V or 48V and 200 to 600 Wh per unit — aggregate capacity 50 to 200 kWh, sitting at or above NFPA 855 threshold.

Recreational watercraft and PWC operator (Sea-Doo Australia, Yamaha WaveRunner Australia, Kawasaki Jet Ski Australia): Import, assembly, commissioning. 3 to 8 m3/s installed. Fibreglass repair bay 1 to 2 m3/s LEV. Outboard engine test bay 1 to 2 m3/s plus stack discharge. Paint touch-up booth 1 to 2 m3/s per booth.

Indoor exercise equipment manufacturer (Force USA Brisbane, Body Solid Australia): 1,000 to 50,000 units per year. 5 to 12 m3/s installed. Chassis paint booth 2 to 4 m3/s. Welding fume capture 1 to 3 m3/s. Assembly bay 1 to 2 m3/s general dilution.

Workplace exposure standards and WES summary

The SafeWork Australia Workplace Exposure Standards (WES) determine the design target for every LEV system in a bicycle, e-bike, e-scooter, mobility scooter, recreational watercraft and personal transport manufacturing facility. The relevant chemicals and metals across the process zones:

Aluminium metal and oxide: 1 mg/m3 inhalable, 0.5 mg/m3 respirable. Aluminium fines combustible per NFPA 484 with water reactivity (Al + H2O = Al(OH)3 + H2).
Titanium fines: Total titanium 5 mg/m3 WES inhalable. Combustible metal per NFPA 484 with water reactivity at elevated temperature.
Magnesium fines: 10 mg/m3 inhalable. Combustible metal per NFPA 484. Rare in bicycle but present in selected Mg alloy frames and high-performance components.
Beryllium: 0.002 mg/m3 inhalable — one of the most restrictive metallic WES. Cu-Be flux backing in titanium TIG welding (heritage, phasing to non-Be alternatives).
Stainless steel weld fume: Cr VI 0.05 STEL — the killer. Ni inhalable 1 mg/m3, Ni insoluble 0.1 mg/m3 respirable. Stainless 4130 chromoly weld and stainless frame.
Styrene: 50 ppm TWA, 100 ppm STEL — the killer of fibreglass polyester and vinylester resin. Surfboard, SUP, kayak, PWC fibreglass repair.
Isocyanate TDI and MDI: 0.005 ppm STEL — the killer of frame topcoat. Endocrine disruption, occupational asthma. Phasing where alternative chemistry available.
Epoxy resin: Skin sensitiser, allergic contact dermatitis, carpal tunnel syndrome. Composite frame layup, structural adhesive bonding.
Respirable composite carbon fibre, aramid Kevlar, glass fibre dust: 5 mg/m3 inhalable. CFRP frame sanding, drilling, machining at Bastion Cycles, Ti Cycles, Curve Cycling, Bombtrack.
Formaldehyde: 1 ppm STEL. Preservative, adhesive, urea-formaldehyde, MDF.
Solvent VOC: MEK 200 ppm, IPA 400 ppm, acetone 250 ppm, ethyl acetate 200 ppm, toluene 50 ppm, xylene 50 ppm, MIBK 50 ppm. Resin solvent, adhesive thinner, paint thinner, cleaning solvent.
Hydrogen fluoride (HF): 1.8 ppm STEL — the killer of Li-ion battery thermal runaway off-gas and Al pre-paint etch. NFPA 855 detection at 0.5 ppm action threshold.
Carbon monoxide (CO): 30 ppm STEL. Li-ion thermal runaway, LPG forklift, propane heater, test rig.
Hydrogen (H2): 25 percent LEL. Li-ion thermal runaway, lead-acid battery charging.
Cobalt and nickel: Co 0.02 mg/m3 STEL, Ni 0.1 mg/m3 respirable. Li-ion battery NMC, NCA, Co cathode handling, stainless frame and Inconel.
Methylene chloride (DCM): 50 ppm STEL. Paint stripper banned 2023, benzyl alcohol replacement.
Methane and LPG: CH4 1.25 percent LEL. LPG forklift, propane heater.
Polystyrene dust: 10 mg/m3 inhalable. EPS Pop-Out surfboard construction.
HDPE and ABS dust: 10 mg/m3 inhalable. Rotomould kayak post-processing, ABS plastic component machining.
Manganese respirable: 0.2 mg/m3. Welding operator exposure on steel and chromoly.
Iron oxide: 5 mg/m3. Steel weld fume.
Wood dust: 5 mg/m3 hardwood, 1 mg/m3 softwood. Joinery and timber surfboard fin work.
Rubber dust: 4 mg/m3. Tyre buffing on bike refurbishment.

Every LEV system in a bicycle, e-bike, e-scooter, mobility scooter or recreational watercraft facility must be designed to maintain operator breathing-zone exposure under the relevant WES with adequate margin. Most BIA, AusCycling and SIA member shops target operating concentration under 50 percent of the WES to allow for the temperature and humidity variability in non-conditioned workshop air.

Australian industry bodies and regulatory framework

The Australian personal transport manufacturing sector is supported by multiple peak industry bodies, each with regulatory engagement and standards input.

Bicycle Industries Australia (BIA). The peak national industry body covering bicycle and e-bike manufacturers, distributors, retailers and the broader supply chain. Engages with state and federal government on cycle infrastructure, e-bike speed limit (25 km/h under VSB14 and ADR 36), import duty and standards.

AusCycling. The merged peak body for road, mountain, track, BMX and cyclocross racing in Australia. Sets the racing rules and the Australian team selection. Bridge between the racing community and the manufacturing supply chain.

Australian Bicycle Council (ABC). Industry-government forum on cycle infrastructure and policy.

Personal Mobility Devices Industry Body (PMDIB). Emerging peak body for the e-scooter, e-bike, mobility scooter and personal mobility device sector. Engages with state Department of Transport on PMD regulation across NSW, VIC, QLD, SA, WA, TAS, ACT and NT.

Cycling Australia. Historical peak body (now merged into AusCycling) covering road and track racing.

Mountain Bike Australia (MBA), Road Cycling Australia (RCA), Track Cycling Australia (TCA), BMX Australia, Cyclocross Australia, Australian Triathlon (TA). Discipline-specific peak bodies covering their respective racing communities. Each feeds back into bicycle design and manufacturing through team supplier relationships and Olympic and Paralympic team equipment specification.

Australian Marine Council (AMC), Boating Industries Alliance Australia (BIAA). Recreational watercraft and PWC peak bodies. The kayak, SUP and small catamaran sailboat sector at Hobie Australia, Wilderness Systems Australia and Old Town Canoe engages through BIAA.

Surfing Australia (SA), Surf Industries Australia (SIA). Surfboard manufacturing peak bodies. The Australian surfboard sector (Mark Richards, Tom Carroll, Murray Smith, Simon Anderson, Phil Byrne, Mick Fanning Softboards, JS Industries, Channel Islands Surfboards Australia, Pyzel, Sharpeye, Webber, Surftech, Firewire) engages through SIA.

Snow Australia, Skate Australia, Roller Sports Australia. Adjacent personal transport peak bodies for snowboard, skateboard and roller sports manufacturing.

The state government Personal Mobility Devices (PMD) regulation framework runs across all eight Australian states and territories with state-specific helmet, light, reflector, bell, brake, speed and operating envelope requirements. Bicycle Network Victoria, NSW Roads (TfNSW), TMR (Transport and Main Roads QLD), VicRoads, Department of Transport WA and equivalent state departments coordinate the on-road regulation. The federal Australian Design Rules (ADR) framework — particularly ADR 36 and ADR 37 — sets the underlying performance standard at the federal level with state implementation overlay.

Hazardous area density and AS/NZS 60079 compliance

Personal transport manufacturers carry the highest density of AS/NZS 60079 hazardous areas of any light industrial occupancy. A typical aluminium bicycle assembly facility has three to five distinct Zone 1 or Zone 2 areas plus two to four Zone 22 dust areas. An e-scooter fleet depot is dominated by a single large Zone 2 (the BESS charging bay) with additional smaller Zone 2 around any vehicle commissioning fuel handling.

The compliance methodology runs through a single integrated drawing — the hazardous area drawing per AS/NZS 60079.10.1 — that marks every Zone on the site plan with the applicable distance, height, ventilation rate and equipment certification level. The drawing is the master reference for the entire ventilation design. Any change in process (a new resin chemistry, a different paint, a new battery bank, a new vehicle model with different fuel chemistry) triggers a hazardous area drawing revision.

The facility's process safety case relies on the hazardous area drawing being correct. State WorkSafe regulators (WorkSafe VIC, SafeWork NSW, Workplace Health and Safety QLD, WorkSafe WA, SafeWork SA, WorkSafe TAS) audit the hazardous area drawing against the actual installation during routine and incident-triggered inspections.

NCC classification and structural compliance

Bicycle, e-bike, e-scooter, mobility scooter, recreational watercraft and personal transport manufacturing sheds are typically National Construction Code (NCC) Class 8 industrial occupancy with Class 7b warehouse component and Class 5 office or Class 6 retail component on the showroom side. Fire resistance ratings (FRL) range from 60/60/60 on internal partitions through 120/120/120 on paint cure ovens, 240/240/240 on Li-ion BESS room walls and 120/120/120 on resin stores. AS 1530.4 fire resistance testing applies to penetrations and seal systems.

Structural compliance runs through AS/NZS 1170 series. Part 2 covers wind load. Part 4 covers earthquake load. Larger facilities at Gold Coast face significant cyclone exposure per Region B wind zone. AS 1100.501 plus ISO drawing standards cover the duct and ventilation drawing standards.

Electrical compliance runs through AS/NZS 3000 wiring rules plus AS/NZS 3760 portable electrical and RCD residual current device protection. AIRAH DA series application guides cover HVAC-specific best practice within the Australian regulatory framework.

SBKJ machinery for bicycle, e-bike, e-scooter, mobility scooter, watercraft and personal transport projects

SBKJ duct fabrication machinery covers the full range of personal transport manufacturing requirements, from a single boutique custom titanium frame builder through to a multi-thousand-vehicle e-scooter fleet depot. Eight SBKJ machine families are sized and configured for personal transport applications.

SBAL-V auto duct line for galvanised general HVAC supply. Our flagship rectangular duct line, configured for personal transport projects with G90 (Z275) galvanised coil 0.8 to 1.2 mm gauge. Cuts, notches, folds, seams and TDF flanges in a single integrated pass at 8 to 15 m/min line speed depending on duct size. SMACNA, AS/NZS 4254 and EN 1505 pressure-class compliant. Single-shift output 600 to 900 m of duct per shift on typical bicycle and personal transport duct sizes (200 to 800 mm). SBAL-V auto duct line specification.

SBAL-V stainless variant for paint booth, composite resin, Li-ion BESS, surfboard glassing. A reinforced-roll variant of the SBAL-V optimised for 316L stainless coil at 1.5 to 2.0 mm gauge. Stainless-specific tooling (TDF flange dies hardened for stainless work-hardening), upgraded forming pressure to handle stainless yield strength, and corrosion-resistant guideways. Single-shift output 400 to 600 m on stainless duct. The standard machine for isocyanate paint booth exhaust, composite resin and styrene exhaust, Li-ion BESS thermal runaway exhaust and surfboard glassing exhaust ductwork.

SBAL-III three-line variant. A reduced-footprint variant of the SBAL-V for smaller bicycle, surfboard or mobility scooter operations. Suitable for builders running fewer than 500 frames or 1,000 boards per year and where the duct fabrication is a secondary activity rather than primary scope. SBAL-V vs SBAL-III comparison.

SBSF-1525 stitchwelder. For heavy-gauge fire-rated and bake-out duct fabrication. Handles 1.2 to 2.0 mm galvanised or stainless with continuous seam welding at 250 C smoke spill rating per AS 1530.4 — the standard for Li-ion BESS thermal runaway exhaust, paint cure oven duct and autoclave skin ductwork.

SB-ZF1500 stitchwelder. Covers a similar envelope to SBSF-1525 at slightly reduced size and capital cost. Used on the heavy-gauge sections at the post-cure bake oven, the powder coat oven and the autoclave skin.

SBFB-1500 spiral tubeformer for round duct. Round-duct fabrication for composite dust collection, aluminium dust collection, titanium dust collection, wood dust collection, polystyrene dust collection and return-air trunks. 100 to 1,500 mm diameter range covers everything from joinery shop dust collection through to Li-ion BESS roof discharge. Spiral seam construction reduces leakage to under 1 percent at 1,000 Pa for SMACNA leakage class 6. SBFB-1500 spiral tubeformer specification.

SBPC1500 plasma cutter. CNC plasma cutting for transition pieces, custom fittings and non-standard duct shapes that fall outside the SBAL-V or SBFB-1500 standard output. SBPC1500 supports galvanised, stainless and aluminium coil at gauges up to 3 mm.

SBLR-600 louvre and register former. Acoustic silencer end-caps, decorative louvres on the showroom side and weather-louvre on external air intakes. Particularly useful for the showroom and administration ventilation where aesthetic finish matters.

SBTF-1500, SBTF-1602 and SBTF-2020 spiral tubeformer variants. Reduced-scope spiral variants for smaller bicycle or surfboard operations. Diameter range 100 to 1,500 mm (SBTF-1500), 100 to 1,600 mm (SBTF-1602) and 100 to 2,000 mm (SBTF-2020).

Lead time on SBAL-V galvanised configuration is 12 to 14 weeks from purchase order to factory acceptance test. Stainless variant adds 2 weeks (14 to 16 weeks total). SBFB-1500 spiral tubeformer is 10 to 12 weeks. SBSF-1525 stitchwelder is 12 to 14 weeks. SBPC1500 plasma cutter is 8 to 10 weeks. Add 4 to 6 weeks ocean freight to Australian ports and 1 to 2 weeks for installation, mechanical commissioning and operator training by SBKJ engineers on site.

Lead times, freight and SBKJ Australia support

Lead times on SBKJ machinery for an Australian bicycle, e-bike, e-scooter, mobility scooter, recreational watercraft or personal transport manufacturing fit-out run 12 to 16 weeks from purchase order to factory acceptance test, plus 4 to 6 weeks ocean freight to Brisbane, Sydney, Melbourne, Adelaide, Fremantle or Hobart, plus 1 to 2 weeks installation and commissioning by SBKJ engineers on site. Total lead time from PO to operational machine is 17 to 24 weeks.

SBKJ Australia operates from Box Hill North VIC with engineering support, spare parts inventory and field service capability across the country. The Box Hill North office handles Apollo Bikes Sydney and Melbourne projects, Reid Cycles projects across Melbourne, Sydney, Brisbane and Perth, Bastion Cycles Melbourne 3D-printed titanium projects, Curve Cycling and ACBBC member custom titanium projects, Pride Mobility and Permobil mobility scooter projects, Neuron Mobility e-scooter depot projects across Sydney, Brisbane, Melbourne and Canberra, Mick Fanning Softboards and JS Industries Gold Coast surfboard projects, Channel Islands Surfboards Australia projects, Hobie Australia kayak SUP catamaran projects, and the broader BIA, AusCycling, SIA, PMDIB and BIAA member network.

SBKJ is exhibiting at ARBS 2026 at the International Convention Centre Sydney in May 2026 (Australian Refrigeration, Building Services and Air Conditioning Exhibition) with the SBAL-V auto duct line, SBFB-1500 spiral tubeformer and SBSF-1525 stitchwelder on the stand. ARBS is the largest HVAC trade exhibition in the southern hemisphere and the primary venue for the Australian personal transport HVAC supply chain meeting in person. Visit the SBKJ stand at ARBS 2026 to scope a bicycle, e-bike, e-scooter, mobility scooter or surfboard manufacturing fit-out with the engineering team.

Cross-sector applications

Many of the engineering principles in personal transport manufacturing HVAC translate to adjacent sectors. The duct fabrication machinery is the same — the tolerance, materials, pressure class and hazardous area zone change at the boundary. Five adjacent guides cover applications where SBKJ has comparable references:

Composite manufacturing HVAC duct guide — autoclave ventilation, prepreg layup rooms and resin infusion exhaust capture for aerospace, marine and wind turbine composite manufacturing.
Automotive paint booth HVAC duct guide — downdraft booth velocity, NFPA 33 compliance, VOC capture and RTO abatement for automotive paint shops.
Marine yacht boatbuilder HVAC duct guide — Riviera Coomera, Maritimo, SilverYachts Henderson WA, styrene capture and aluminium NFPA 484 for the marine boatbuilder sector.
Battery gigafactory HVAC duct guide — large-scale Li-ion battery manufacturing with thermal runaway capture and BESS commissioning.
EV charging and BESS HVAC duct guide — adjacent stationary energy storage and EV charging infrastructure ventilation.

For Australian personal transport manufacturing projects specifically, see our Australia regional page for local lead times, ARBS 2026 exhibition presence and Box Hill North VIC head office service capability.

FAQ

How is respirable carbon fibre composite dust captured at Bastion Cycles, Curve Cycling and other Australian carbon composite bicycle frame builders?

Capture velocity 0.5 to 1.0 m/s at every machining station, transport at 18 to 23 m/s per NFPA 91. HEPA pre-filter (99.97 percent at 0.3 micron) into sealed drum or bag house. NFPA 660 (2025) treats carbon fibre dust as combustible with Kst 50 to 100 bar.m/s — explosion venting required where collector volume exceeds 0.5 m3. Ductwork galvanised 1.2 mm or 316L stainless 1.5 mm with conductive seam, full equipotential bonding under 10 ohms. WES 5 mg/m3 inhalable.

What does NFPA 855 require for Li-ion BESS thermal runaway at e-bike, e-scooter and mobility scooter sites?

NFPA 855 (cross-referenced with AS/NZS 5139) governs stationary Li-ion BESS above 20 kWh aggregate. Thermal runaway off-gas contains HF (1.8 ppm STEL), CO (30 ppm), H2 (25 percent LEL), DMC, EMC, EC electrolyte vapour. Room classified AS/NZS 60079 Zone 2. Ductwork 316L stainless 1.5 to 2.0 mm with 250 C smoke spill fire rating per AS 1530.4. Fire suppression Stat-X aerosol, Novec 1230 or water mist. Detection HF 0.5 ppm, H2 10 percent LEL, CO 25 ppm action thresholds.

How is an isocyanate paint booth designed for bicycle frame, mobility scooter chassis or PWC topcoat?

AS/NZS 60079 Zone 1 inside the booth. AS 4114.2 sets construction and ventilation. Downdraft 0.4 to 0.5 m/s for premium custom (Bastion, Curve, Llewellyn), cross-draft 0.5 to 0.6 m/s for production (Apollo, Reid, Pride, Permobil). Dual-redundant interlocked extract fans. Ductwork 304L or 316L stainless 1.5 to 2.0 mm. Post-cure bake at 60 to 80 C. Isocyanate WES 0.005 ppm — twenty times more restrictive than styrene.

How is aluminium dust handled at Apollo Bikes, Reid Cycles and Giant Bicycles Australia under NFPA 484?

NFPA 484 (cross-referenced with NFPA 660 in 2025) treats aluminium fines as Class D combustible metal with Kst 200 to 415 bar.m/s. Capture at source through wet collector or dry with explosion suppression and isolation. Water deluge restricted because Al + H2O = Al(OH)3 + H2. Class D extinguishers (Met-L-X, Pyrene G-Plus, Lith-X). Ductwork galvanised 1.2 mm with conductive seam, 316L stainless where additional margin required. All joints bonded under 10 ohms. NFPA 484 prohibits sharing aluminium duct with steel or titanium duct.

How is titanium frame builder dust and Cu-Be flux handled at Bastion Cycles 3D-printed titanium, Ti Cycles and Curve Cycling?

Titanium 3Al-2.5V dust is NFPA 484 Class D combustible metal with Kst 200 to 350 bar.m/s and MIE 10 to 80 mJ. Water-reactive at elevated temperature. Cu-Be flux backing (Be 0.002 mg/m3 WES — one of the most restrictive in the schedule) — phasing to H13 stainless or quartz backing. Ductwork 316L stainless 1.5 mm with conductive seam, fully bonded under 10 ohms, rotary airlock at collector. NFPA 484 prohibits sharing with steel or aluminium duct.

How is styrene captured during surfboard, SUP and Hobie Australia kayak composite layup?

WES 50 ppm TWA, 100 ppm STEL. Layered LEV at every glassing bench (0.5 to 1.0 m/s capture velocity) plus general dilution at 4 to 6 ACH. PU foam blank shaping generates respirable PU dust at 5 mg/m3 inhalable. EPS Pop-Out construction generates polystyrene dust at 10 mg/m3. Ductwork 316L stainless or polypropylene because polyester and vinylester resin attacks galvanised zinc. SIA member design target 20 ppm breathing zone.

What is the design approach for Neuron Mobility, Bird, Lime e-scooter battery commissioning?

Sydney, Brisbane, Melbourne, Canberra depots run 200 to 1,000 charging positions in parallel. Aggregate capacity 100 to 500 kWh — well above NFPA 855 threshold. Charging bay AS/NZS 60079 Zone 2. Ventilation 6 to 12 ACH continuous plus localised exhaust 2 to 4 m3/s per 100 positions. HF, H2, CO detection at action thresholds. Fire suppression Stat-X aerosol or Novec 1230 plus water mist. Arc fault detection on every charging circuit. FLIR thermal imaging above the racks. 316L stainless ductwork.

What standards govern Australian bicycle, e-bike, mobility scooter, watercraft and personal transport manufacturing?

AS 1668.2 general ventilation, AS 4254 duct construction, AS 1530.4 fire resistance, AS/NZS 60079 hazardous gas atmosphere, AS 3957 dust hazard, AS 1940 flammable liquid, AS/NZS 5139 Li-ion install. NFPA 484 combustible metal, NFPA 660 (2025) combustible dust, NFPA 855 stationary BESS, NFPA 86 ovens, NFPA 30 flammable liquid. ISO 4210 bicycle test. ADR 36 and ADR 37 e-bike and e-scooter. State PMD regulation NSW VIC QLD SA WA TAS ACT NT. IMCI for recreational watercraft. BIA, AusCycling, SIA, PMDIB peak industry bodies.

What air volumes for a typical Australian production bicycle, surfboard or e-scooter facility?

Aluminium bicycle assembly (Apollo, Reid, Giant assembly) 8 to 18 m3/s total. Custom titanium 3D-printed frame (Bastion, Ti Cycles, Curve) 5 to 12 m3/s with composite dust dominating. Surfboard SUP kayak (Mick Fanning, JS Industries, Channel Islands, Hobie) 10 to 22 m3/s with styrene and PU foam dust dominating. E-scooter fleet depot (Neuron, Bird, Lime) 15 to 35 m3/s with BESS Li-ion charging bay dominating at 8 to 20 m3/s. Mobility scooter (Pride, Permobil) 6 to 15 m3/s.

What SBKJ machine model for an Australian bicycle, e-bike, mobility scooter or surfboard fit-out?

SBAL-V at GAL for general supply (12 to 14 weeks lead). SBAL-V at 316L stainless 1.5 mm for paint booth, composite resin, Li-ion BESS thermal runaway, surfboard glassing exhaust (14 to 16 weeks). SBFB-1500 spiral for composite, aluminium, titanium, wood and polystyrene dust collection plus engine and BESS roof discharge (10 to 12 weeks). SBSF-1525 stitchwelder for fire-rated BESS thermal runaway, paint cure oven, autoclave skin sections at 250 C smoke spill (12 to 14 weeks). SBAL-III, SB-ZF1500, SBPC1500, SBLR-600, SBTF-1500/1602/2020 cover smaller and specialist requirements. Add 4 to 6 weeks ocean freight to Australian ports.

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Spec'ing duct fabrication for a bicycle, e-bike, e-scooter, mobility scooter, recreational watercraft or personal transport manufacturing fit-out at Sydney, Melbourne, Brisbane, Perth, Adelaide, Hobart, Canberra, the Gold Coast or anywhere else in Australia? An SBKJ mechanical engineer replies within 12 hours — not a salesperson. We will scope your fit-out from the BIA, AusCycling, SIA, PMDIB or BIAA member onboarding paperwork through to the SBKJ Australia office at Box Hill North VIC, the ARBS 2026 stand in Sydney and the engineering and field service team for installation, commissioning and operator training.

SBKJ Group — Australia
Box Hill North, Melbourne VIC 3129
Email: sales@sbkjduct.com
Phone: +61 435 074 994
Web: sbkjduct.com
ARBS 2026: International Convention Centre Sydney, May 2026

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Spec'ing duct fabrication for an Australian bicycle, e-bike, e-scooter, mobility scooter, recreational watercraft or personal transport manufacturing fit-out? An SBKJ mechanical engineer replies within 12 hours — not a salesperson.

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