Cangzhou Zhongtuo's Trimdek Sheet Roll Forming Machine delivers precision trapezoidal profiling for high-demand commercial projects. Established in 2014 as a national-level high-tech enterprise, we engineer this machine with 18 roll forming stations, processing 0.3–0.7 mm galvanized steel at 15–20 m/min. Our system features GCr12MoV hardened rollers (75 mm shaft diameter) and 7.5 kW gearbox transmission, ensuring consistent rib geometry for long-span roofing. The machine handles 7.5-tonne coils (Ø 450–600 mm) with PLC-controlled length precision of ±1.5 mm, addressing critical structural performance requirements in coastal zones and low-pitch commercial applications.

This specialized cold-rolling equipment transforms high-tensile steel coils into the distinctive Trimdek trapezoidal profile. Unlike standard corrugated designs, it creates bold trapezoidal ribs with subtle fluting in flat pans.
The machine progressively bends Prepainted Galvanized Steel or Galvalume through mated roller dies. Your production benefits from precise overlapping rib geometry that incorporates anti-capillary grooves.
This design solves industry challenges: eliminating purlin needs in short spans due to profile rigidity. It overcomes spring-back effects when processing high-tensile G550 steel through precision roller engineering.
Low-pitch roofing applications (down to 2 degrees) require exact pan depth and rib height. Our machine ensures rapid water shedding and prevents pooling in flat commercial roofs.

Here's what powers your production:
|
Parameter |
Specification |
Details |
|
Raw Material |
Galvanized steel, PPGI, Galvalume |
Compatible with G550 high-tensile grades |
|
Material Thickness |
0.3–0.7 mm |
Adjustable roller gaps for versatility |
|
Decoiler Capacity |
7.5 tonne |
Inner diameter: Ø 450–600 mm |
|
Decoiler Type |
Manual (standard) / Hydraulic (optional) |
Choose based on your workflow needs |
|
Forming Stations |
18 stations (20–22 rollers total) |
Progressive bending for profile accuracy |
|
Roller Material |
GCr12MoV hardened steel |
0.05 mm chrome plating resists wear |
|
Shaft Diameter |
75 mm hardened shafts |
Prevents deflection during forming |
|
Forming Speed |
15–20 m/min (no holes) / 0–20 m/min (with holes) |
PLC-controlled for consistency |
|
Machine Frame |
Vertical arch weldment, precision machined |
Heavy-duty steel plate construction |
|
Drive System |
Gearbox transmission, safety covered |
Even torque distribution |
|
Main Motor |
7.5 kW + 3 kW auxiliary |
Reliable power for continuous operation |
|
Cutting System |
Hydraulic post-cutting with Cr12Mov blades |
Burr-free cuts maintain coating integrity |
|
Control System |
PLC with touch screen interface |
Millimeter-level precision, batch automation |
|
Length Tolerance |
±1.5 mm |
Encoder feedback ensures accuracy |

Your machine's performance depends on critical engineering features that ensure profile fidelity and production stability.
Roller Material & Treatment: Rollers machined from 45# steel or Cr12 mold steel receive 0.05 mm hard chrome plating. This resists abrasion from G550 high-tensile coils and prevents surface scratching during continuous operation.
Drive System Reliability: Heavy-duty gearbox transmission ensures consistent torque distribution across all forming stations. This maintains uniform pressure on material traveling at 15–25 meters per minute.
Structural Stiffness: The machine incorporates 70–90 mm diameter solid shafts to prevent deflection. This ensures accurate bending of 0.35–0.60 mm thick sheets without profile distortion.
Precision Control: Integrated PLC systems (Panasonic/Siemens/Delta) with touchscreen interfaces deliver millimeter-level length precision. Rotary encoders provide feedback for automated batch processing.
Shearing Mechanism: Hydraulic post-cutting systems use Cr12Mov blades for burr-free cuts. This preserves anti-corrosion coatings at cut edges and matches profile geometry perfectly.
The output from your Trimdek Sheet Roll Forming Machine addresses specific structural and architectural challenges in commercial construction.
Large-Scale Industrial Warehousing: Pre-Engineered Buildings (PEBs) require long-span roofing systems. Your machine produces continuous sheets that reduce end-laps, minimizing leak points in factories with extensive roof surface areas.
Coastal & High-Wind Zone Cladding: Commercial centers in coastal regions need superior uplift resistance. The Trimdek profile allows secure screw-fixing methods that withstand cyclonic conditions better than concealed-fix systems.
Low-Pitch Commercial Roofing: Modern architectural designs like shopping malls and airports often feature minimal roof pitch. Your machine ensures exact pan depth and rib height for rapid water shedding.
The widely spaced ribs provide structural rigidity while maintaining aesthetic appeal. This makes the profile ideal for visible commercial applications where appearance matters.
We implement rigorous verification processes aligned with ISO 9001 certification and CE safety standards.
Profile Overlap Testing: Every production run undergoes template matching. The effective width (typically 762 mm) must match specifications exactly to prevent installation drift and ensure modular compatibility.
Spring-Back Verification: G550 grade steel testing confirms roller calibration. Your machine over-bends slightly to compensate for material elasticity, maintaining sharp rib angles (typically 90 degrees).
Surface Finish Inspection: Polished rollers and synchronized speeds prevent micro-scratches. This protects pre-painted coatings and prevents future rust formation.
Hydraulic System Stress Testing: Continuous 4–6 hour cutting system operations monitor oil temperature and pressure stability. This ensures the cutter maintains performance during high-speed production without profile deformation.
Our partnership with Yanshan University's National Cold Rolled Strip Equipment and Process Engineering Research Center brings FEA simulation and AI-assisted optimization to your production line.
Q: Can this machine handle G550 High Tensile Steel?
A: Yes, when specified during ordering. G550 configurations require stronger shafts, narrower bearing gaps, and specialized roller designs to manage high spring-back associated with high-tensile material.
Q: What is the tolerance for cutting length?
A: Our calibrated system achieves ±1mm to ±2mm tolerance for lengths under 10m. The rotary encoder and PLC feedback loop ensure consistent precision throughout production runs.
Q: How do you adjust for different sheet thicknesses?
A: Upper rollers feature spacer adjustments or manual bolt adjustment on stands to change gap clearance. This accommodates the 0.3–0.7 mm thickness range specified for your applications.
Q: Does the machine produce fluting in the pan areas?
A: Yes, rollers press small stiffening ribs into flat pans. This fluting prevents oil-canning (buckling) in flat areas of the metal sheet, maintaining structural integrity and visual quality.
Q: What maintenance does the hydraulic cutter require?
A: Monitor hydraulic oil levels regularly and check for leaks. Sharpen or replace Cr12Mov cutting blades after approximately 500,000 to 1,000,000 cuts to maintain burr-free edges.
Ready to enhance your production capabilities with the Trimdek Sheet Roll Forming Machine? Contact us at zhongtuorollforming@gmail.com for detailed specifications and quotations.