Oct . 16, 2025 14:30 Back to list

TR4 Metal Roofing Panel Roll Forming Machine for sale | PLC

TR4 roofing panels are having a moment — here’s the machine behind the trend

If you’re scouting for capacity, consistency, and low scrap on Latin-style trapezoid panels, the TR4 Metal Roofing Panel Roll Forming Machine for sale is the model I keep hearing about on shop floors. Built in SHIBAWUXING VILLAGE BO TOWN, CANGZHOU CITY, HEBEI PROVINCE, it’s been landing strong orders in Peru (no surprise — TR4 is a local favorite) and quietly popping up across warehouse and market-roof projects. To be honest, what stands out is not just the profile quality but the easy add-on roof-curving unit for those gentle radius sheds.

What’s driving the TR4 wave

Two macro trends: steel price volatility (you can’t waste coils) and faster site turnarounds. Contractors want panels on demand, with tight fit-up, less sealing drama. The TR4 Metal Roofing Panel Roll Forming Machine for sale answers that with steady line speed, ±0.5 mm typical width accuracy, and cut-to-length consistency that keeps installers happy. Plus, that curving option means fewer lap joints on arch roofs — big deal in rainy season.

Core specs (shop-floor reality)

Profile	TR4 trapezoid (Peru-popular), roof curving attachment optional
Material	Galvanized (ASTM A653), Galvalume (ASTM A792), Pre-painted (PE/SMP/PVDF)
Thickness range	≈0.30–0.70 mm (real-world use may vary by yield strength)
Coil width	914–1220 mm
Forming speed	12–18 m/min typical; up to ≈20 m/min with light gauges
Stations / shafts	16–20 stations, shafts ≈70 mm
Rollers	45# steel or GCr15, quenched, hard-chrome
Drive & cut	Chain/gearbox drive; hydraulic post-cut, die steel Cr12MoV
Power & control	Main 5.5–7.5 kW; hydraulic 4 kW; PLC Siemens; HMI touch
Tolerance	Width/length ±0.5 mm at 15 m/min (factory FAT data)

Process flow, testing, and service life

Decoiling → Pinch/feed → Leveling → Roll forming → Hydraulic post-cut → Output rack; optional curving (radius as required).
Methods: CAD/CAM roll design, finite-element pass optimization, profile verification with go/no-go gauges.
Testing: Coating thickness per ISO 2808; salt spray to ASTM B117 (1,000 h typical on PVDF panels); electrical safety per IEC 60204-1; CE marking available.
Service life: Rollers ≈5–8 years; hydraulic seals 2–3 years; line frame 10–15 years with routine lubrication and chain tension checks.
Industries: Warehouses, markets, logistics hubs, agro sheds, coastal resorts (with AZ coatings), community projects.

How it compares (honestly)

Criteria	LW TR4	Generic import	Used line
Panel accuracy	±0.5 mm	±0.8–1.5 mm	Varies
Curving option	Factory-matched	Sometimes	Rare
Lead time	30–45 days	45–75 days	Immediate
Warranty	12–18 months	6–12 months	None
Spare parts	Stocked	Mixed	Sourcing required

Customization that actually matters

Most buyers tweak coil width, rib height, embossing, and the curving radius. Electricals can be 380 V/50 Hz or 440 V/60 Hz. I’ve seen shops ask for gearbox drive, auto-stacker, and offline punching. The TR4 Metal Roofing Panel Roll Forming Machine for sale handles those without drama.

Field notes and mini case

Lima, 2023: a mid-size fabricator swapped to this line, ran 0.45 mm AZ panels at ≈16 m/min. Their installer told me, “we cut sealant by half.” Factory FAT logged length tolerance at ±0.3 mm and sound level under 78 dB. Another customer said scrap dropped ≈15% versus their old chain-only unit — small tweaks in roller geometry do add up.

Compliance and documentation

Supplier provides CE, ISO 9001 QA traceability, materials MTCs, and an English wiring diagram. For coastal projects, they recommend AZ150 with PVDF; for agro sheds, SMP often hits the cost/survivability sweet spot.

Bottom line? If your mix is Peru-style TR4 with occasional curved roofs, the TR4 Metal Roofing Panel Roll Forming Machine for sale is a pragmatic pick: steady output, sensible accuracy, and support that—surprisingly—answers on WeChat after hours.