TR Profiles Done Right: Field Notes on a Modern Roll Former

If you’ve been hunting for a no-drama line that punches out TR roofs all day, the Tr20 Tr40 roof panel forming machine is the one people keep bringing up in shop-floor chats. Built in SHIBAWUXING VILLAGE BO TOWN, CANGZHOU CITY, HEBEI PROVINCE, it’s a solid, surprisingly refined production line that (to be honest) feels overbuilt in a good way. T18/T32/T35 variants can be completed within around 40 days—fast enough for most project schedules.

Industry pulse

Two big currents: contractors want profile flexibility (TR20/40 today, T18/32/35 tomorrow), and they want uptime with simple maintenance. Energy prices aren’t kind, so efficient drives and clean cut accuracy matter. It seems that shops are moving from semi-manual decoilers to hydraulic ones, and from analog counters to PLC/servo packages that keep tolerances tight even on thinner galvanized coils.

Key specifications (shop-floor reality)

Profiles	TR20, TR40 (optional: T18, T32, T35)
Input coil	GI/GL/PPGI, ASTM A653 / JIS G3302, 0.3–0.8 mm (≈), yield ≤ 350–550 MPa
Effective width	Around 840–1060 mm (depends on profile and coil)
Speed	10–15 m/min (real-world use may vary with thickness)
Stations	14–20 forming stands (≈), gear/chain drive
Rollers	45# steel, hard-chrome; cutting die Cr12MoV, HRC 58–62
Control	PLC (Siemens/Delta), encoder length control ±1.0 mm (typ.)
Power	Main 7.5–11 kW; hydraulic cut 3–4 kW

Process flow and quality notes

Materials: galvanized/galvalume coils, sometimes pre-painted. Methods: decoiling → leveling → roll forming → hydraulic cutting → run-out stacking. We’ve seen test reports for hardness (HRC 58–62 on Cr12MoV cutters) and straightness within ±1.0 mm over 6 m—good enough for clean overlaps.

• Testing standards: ISO 9001:2015 quality system; electrical safety per IEC 60204-1; coils compliant with ASTM A653/JIS G3302.
• Service life: around 10–15 years with quarterly lubrication, chain tension checks, and coolant replacement every 12 months.
• Industries: industrial warehouses, logistics parks, agri barns, cold storage, coastal projects (prefer GL/AZ coils).

Why it gets chosen

Accuracy is consistent, the cutter doesn’t burr plate edges, and the line doesn’t chew thin stock. Many customers say the PLC recipes make switching between TR20 and TR40 painless. And yes, the team can customize ribs, embossing, film-lam, and 5–7T hydraulic decoilers.

Vendor snapshot (quick comparison)

Vendor	Lead time	Roller/Cutter	Electrical	After-sales	Warranty	Price
This unit	≈ 30–40 days	45#/Cr12MoV, HRC 58–62	Siemens/Delta	Remote + onsite (by request)	12–18 months	Mid
Vendor A	45–60 days	40Cr/Cr12	Delta	Remote only	12 months	Low
Vendor B	30–45 days	GCr15/Cr12MoV	Siemens	Onsite (chargeable)	12 months	Mid–High

Customization and real projects

Options include embossing rollers, servo flying cut, extra ribs for wind uplift, and protective film applicators. Actually, a logistics hub in Indonesia ran this line for 18,000 m² of TR40 roofing; they logged ±0.8 mm average length error over 6 m. A cold-store build in Poland used 0.5 mm PPGI on TR20 with no oil-canning—feedback was “line ran 12 hours straight without heat sag.”

Bottom line: the Tr20 Tr40 roof panel forming machine ticks the boxes—speed, accuracy, sane maintenance—and the team’s 40-day completion for TR/T profiles is genuinely helpful when deadlines bite.

Compliance and documentation

• Quality: ISO 9001:2015 factory system (certificate available upon request).
• CE machinery compliance (EN ISO 12100, MD 2006/42/EC) and electrical safety per IEC 60204-1.
• Coil materials per ASTM A653 / JIS G3302, with mill test certificates (MTC).

If you need profile drawings or a quick ROI calc for the Tr20 Tr40 roof panel forming machine, send your coil spec (grade, thickness, coating) and target throughput. Small note: keep an eye on coil edge camber; it’s the silent killer of panel straightness.

References

1. ISO 9001:2015 Quality management systems.
2. IEC 60204-1: Safety of machinery – Electrical equipment of machines.
3. ASTM A653/A653M: Standard Specification for Steel Sheet, Zinc-Coated (Galvanized).
4. EU Machinery Directive 2006/42/EC; EN ISO 12100:2010.