The Australian hyperscale wave
Australian data centre capex is in an extended growth phase. Combined hyperscale operator capex 2026-2030 is forecast above AUD 30 billion across NextDC, Equinix, AirTrunk, Global Switch, Microsoft Azure, Amazon AWS, Google Cloud and emerging hyperscale players. HVAC ductwork represents approximately 1-2% of total project capex, meaning the addressable Australian data centre HVAC duct market is approximately AUD 300-600 million over the period.
For HVAC duct fabricators in Australia, the opportunity is to position as a preferred supplier on hyperscale framework agreements. SBKJ has supplied auto duct lines and spiral tubeformers to Melbourne and Sydney fabricators since 2019; this guide is the framework we walk through with Australian fabricators positioning for hyperscale work.
Standards and codes — Australian hyperscale data centre HVAC
- AS/NZS 4254.2 (high pressure) — binding for hyperscale data centre HVAC duct above 500 Pa. The dominant fabrication specification.
- AS/NZS 4254.1 (low pressure) — applies to lower-pressure system sections.
- NCC (National Construction Code) — mandates compliance with AS/NZS 4254 and AS 1668 for ventilation.
- AS 1668.1 — ventilation, fire and smoke control.
- AS 1668.2 — mechanical ventilation in buildings.
- AS 1530.4 — fire-rated duct construction for compartmentation walls and floors.
- NABERS Energy for Data Centres — 5-star+ ratings drive tight duct leakage requirements.
- SMACNA (sometimes) — US-led hyperscale operators (Microsoft, Amazon, Google) may overlay SMACNA on top of AS/NZS 4254. Fabricate to the tighter of the two.
The 2026 hyperscale operator pipeline
- NextDC: S5 Sydney (Macquarie Park), M3 Melbourne (Tullamarine), B2 Brisbane, plus Sydney 6 (Western Sydney) under construction. Australia's largest indigenous hyperscale operator.
- Equinix: multiple Sydney sites (SY3, SY4, SY5), multiple Melbourne sites (ME1, ME2). International hyperscale operator with large Australian footprint.
- AirTrunk: SYD1, SYD2, MEL1, MEL2 (each over 50 MW IT load). Now part of Blackstone, with major Australian expansion programme.
- Global Switch: SYD1 in Sydney CBD.
- Microsoft Azure: multiple availability zones in Sydney and Melbourne, with continuing capacity expansion.
- Amazon AWS: ap-southeast-2 region (Sydney), with new Melbourne region.
- Google Cloud: australia-southeast1 (Sydney), with expansion programme.
- global hyperscale (emerging): AWS, Azure and Google Cloud Australian regions expanding.
- Telstra, Optus: telco data centre programmes ongoing.
What Australian fabricators need to win hyperscale framework agreements
- AS/NZS 4254.2 fabrication capability — binding pre-qualification
- NCC and AS 1668.1 compliance documentation
- Multi-standard PLC capability for projects designed by US consultants who specify SMACNA in addition to AS/NZS
- Fire-rated duct production capability per AS 1530.4 and the project-specific fire engineering report
- FAT testing at the project's leakage class at fabrication shop, with documented certificate
- Production capacity to deliver 6,000-12,000 m² of finished duct over 12-18 months — minimum one SBAL-V on multi-shift
- Quality system aligned with ISO 9001:2015 and audited by the project's MEP consultant
- Australian sheet metal labour pool with WorkCover compliance and AS-qualified welders
- Insurance cover appropriate to project value (typically professional indemnity AUD 5M+, public liability AUD 20M+)
- Track record on at least one prior data centre or large commercial HVAC project
SBKJ equipment list for Australian hyperscale data centre fabricators
- SBAL-V auto duct production line — primary rectangular duct production, AS/NZS 4254.2 PLC recipes loaded
- SBTF-1602 spiral tubeformer — round duct for branches, terminals and economiser intakes
- SBTF-2020 spiral tubeformer (optional) — large-diameter risers up to Φ2,000 mm
- TDF flange forming machine — primary joint type
- SBLC lockformer — Pittsburgh seam for rectangular duct
- CNC plasma cutter (1500 × 6000 bed) — high-throughput blank production
- Hydraulic shear and folding — fittings, transitions, reducers
- Welding station (TIG) — for continuous-weld sections
- Auxiliary — auto corner mounting, hoop machine, run-out tables
Capex for an Australian hyperscale-ready fab shop
For an Australian fabricator targeting hyperscale framework agreements:
- Equipment ex-works SBKJ (Australia): USD 700,000–950,000 (≈ AUD 1.05–1.45 million at current exchange)
- CIF Sydney/Melbourne port + duty + customs broker + inland trucking: AUD 150,000–250,000
- Building lease and fit-out (typical 1,500–2,500 m² shed in Western Sydney or Tullamarine): AUD 100,000–250,000 first year
- Total turnkey capex: AUD 1.3–1.95 million
This shop can sustain rectangular plus spiral round duct production, sufficient for one hyperscale project at any given time on multi-shift. Dual-line shops (2 SBAL-V cells) capable of multiple concurrent hyperscale projects cost approximately AUD 2.4–3.2 million turnkey.
Australian labour cost reality
Australian sheet metal fabrication labour is among the highest in the SBKJ customer base. Approximate fully-loaded annual cost (2026, AUD):
- Senior fabrication supervisor: AUD 110,000-150,000/year
- HVAC fitter / sheet metal worker (qualified): AUD 80,000-110,000/year
- SBAL-V auto duct line operator: AUD 75,000-105,000/year
- Sheet metal welder (AS qualified): AUD 90,000-125,000/year
- QA/QC engineer: AUD 100,000-140,000/year
- Project / contract manager: AUD 130,000-180,000/year
The high labour cost is the strongest case for automation — an SBAL-V running with one operator producing at 16 m/min single-operator production replaces approximately 6-10 manual fabricators, paying back the auto duct line capex in 14-22 months. See our 5-year TCO model for the worked Australian numbers.
NABERS Energy implications for duct construction
NABERS Energy for Data Centres rates the operating energy efficiency of the facility. Higher star ratings (5+) require very low fan energy, which translates to:
- Tight duct leakage class — AS/NZS Class C at minimum, often Class D for 5+ star projects
- Efficient air distribution — duct sized for low velocity, low pressure drop
- Tight zone control — variable air volume (VAV) terminals integrated with the BMS
- Continuous insulation on supply duct to minimise heat gain in plant rooms and risers
Tight leakage class makes FAT-tested duct fabrication non-negotiable. SBKJ supplies AS/NZS Class C and Class D leakage test certificates with every machine FAT.
SBKJ Australia-ready package
- AS/NZS 4254.1 and 4254.2 PLC recipes pre-loaded
- SMACNA recipes loaded for projects with US-led specification overlay
- FAT certificate at AS/NZS Class C leakage (or tighter on request)
- Australian 415V/50Hz electrical wiring (3-phase) with HRC fuses to AS standards
- WorkSafe-compliant safety guarding and emergency stop circuit
- ISPM-15 fumigated crating for Australian Quarantine
- 72-hour WhatsApp response from SBKJ Australia office in Box Hill North VIC
- English-speaking after-sales coordination with same time zone (no overnight delay on weekday support)
Get an Australia-ready SBKJ quotation →
FAQ
Which standard applies to Australian data centre HVAC duct?
AS/NZS 4254.2 (high pressure above 500 Pa). AS/NZS 4254.1 for low pressure. NCC mandates both. SMACNA may overlay on US-led projects.
What hyperscale operators are active?
NextDC, Equinix, AirTrunk, Global Switch, Microsoft Azure, Amazon AWS, Google Cloud, plus emerging hyperscale. Combined 2026-2030 capex above AUD 30 billion.
How does NABERS Energy affect duct?
5+ star ratings require tight leakage class (AS/NZS Class C or D), low velocity sizing, VAV zone control and continuous insulation. Makes FAT testing non-negotiable.
Where are Australian data centres concentrated?
Sydney (Macquarie Park, Mascot, Erskine Park, Western Sydney) is largest. Melbourne (Tullamarine, Port Melbourne, Derrimut) is second. Brisbane, Perth, Canberra smaller. Geelong and Wollongong emerging.
Typical contract size?
30-50 MW hyperscale: AUD 5-15M HVAC duct supply over 12-18 months, 6,000-12,000 m² delivery. Sustainable on single SBAL-V multi-shift. Frameworks typically 3-5 year multi-project arrangements.
