Case studies
The case studies below are drawn from actual SBKJ Group deliveries between 2018 and 2026 in Vietnam, Saudi Arabia, Australia, Poland and Indonesia. Each one names the machine, the buyer context, the installation timeline and the measured outcomes. Every number has been verified against the buyer's own commissioning report and post-installation review. Identifying buyer details (company name, exact site address) are withheld at buyer request; the engineering and commercial context is complete.
A specification sheet tells you what a machine is rated for in a test bay. A case study tells you what happens when the same machine lands in a real workshop with real coil, real operators, real voltage supply and a real production schedule. Most buyers evaluating an auto duct line or a spiral tubeformer for the first time care less about peak catalogue throughput and more about questions like: how long does installation take, how many operators does the line actually need, what does the first-year rework rate look like, how responsive is SBKJ after the commissioning team leaves? The case studies in this section answer those questions with numbers that came from the buyer's own floor, not from SBKJ marketing. Each one is written by the SBKJ commissioning engineer who delivered the project, cross-checked against the buyer's commissioning report, and reviewed by the buyer before publication.
Every case study in this section follows the same structure so you can compare projects directly. First comes the buyer context — country, workshop type, existing production method, and the commercial pressure that drove the investment. Then the machine configuration — the exact SBKJ model, any options or upgrades, the material and gauge range, and the reason behind each decision. Next the installation timeline — order confirmation date, factory acceptance test date, shipment date, on-site commissioning duration, and operator training days. Then the outcomes — daily output, operator headcount, rework rate, scrap rate, changeover time — compared before and after the installation. Finally the lessons — what SBKJ learned from the project, what the buyer would do differently next time, and what a similar buyer in the same market should think about before ordering.
A mid-size HVAC duct fabrication business in Ho Chi Minh City replaced a 10-operator manual workshop with a single SBAL-V auto duct line. Daily output tripled, rework rate dropped from 5.5% to 0.8%, and the workforce reallocated from hand-forming to install-team deployment. The case study covers the full SBAL-V configuration, the 58-day lead time, the 5-day on-site commissioning and the first-year results.
A commercial HVAC contractor in Riyadh that had been buying spiral duct from two regional subcontractors brought production in-house with a single SBTF-1602 spiral tubeformer. The case study covers the SMACNA gauge decision, the 415V/60Hz voltage conformity, the Arabic-language operator training and the impact on the contractor's margin and project delivery lead time on large mechanical packages.
A sheet-metal workshop in outer Melbourne running a fleet of independent folders, lockformers and notchers consolidated to a single SBAL-III auto duct line to meet rising demand from data-centre mechanical contractors. The case study covers the AS/NZS 4254 compliance position, the 240V 3-phase power conversion, the on-site commissioning with the SBKJ Box Hill North office and the workforce transition from hand-forming to auto-line operation.
SBKJ is writing up three additional installations that will be published in this section after buyer review has been completed. If you are evaluating one of these configurations, the SBKJ commissioning engineer responsible for the project can walk you through the detail on a call — ask the sales team for a reference when you send your enquiry.
Some of the buyers named above are willing to take a call from a prospective SBKJ buyer who is evaluating a similar machine for a similar market. Buyer-to-buyer references are coordinated through the SBKJ commissioning engineer responsible for the project — the SBKJ sales team never shares a buyer's contact details without the buyer's written agreement, and the engineer will always ask you to describe your own project context before the introduction is made. To ask for a reference, send your enquiry through the contact page and say which country and which machine you want to talk to; SBKJ replies within 12 hours with a go/no-go and a proposed call slot.
Evaluating a configuration similar to one of the case studies above? SBKJ can put you in touch with the commissioning engineer who delivered the project. Reply within 12 hours.
Ask for a reference