trapezoidal roll forming machine
Custom lengths 3′ to 20′ 10″ (for longer length panels)
Long length flashings available up to 20′ 11″
Roof and Vertical or Horizontal Wall application
Structural panel that will span up to 6
- Product Description
Trapezoidal Roll Forming Machine – High-Performance Metal Roofing Solution
Our trapezoidal roll forming machine delivers enterprise-grade performance with 12-22 sequential forming stations that transform 0.3mm-0.8mm metal coils into structurally robust profiles. Engineered by Cangzhou Zhongtuo since 2014, this system achieves 15-25 meters/minute production speeds with ±1mm length accuracy. Built with Cr12MoV hardened rollers (HRC 58-62) and powered by Siemens/Mitsubishi PLC controls, it handles G550 high-tensile steel for spans up to 6 meters. ISO 9001 and CE certified, our solution offers custom lengths from 3' to 20'10" with scratch-free coating protection—ideal for industrial warehouses, commercial cladding, and coastal construction projects.

What Makes Our Trapezoidal Profile System Different?
Precision Engineering That Solves Real Problems
Your production challenges need more than basic equipment.
Our machine addresses three critical pain points:
Structural Integrity
You get thin-gauge metal (0.3-0.8mm) transformed into load-bearing profiles. The trapezoidal shape provides superior wind-uplift resistance. Your panels can span long distances between supports.
Zero Water Infiltration
The male-female rib alignment is machined to eliminate capillary action. You won't face leakage issues common with generic bending methods. Every overlap seals perfectly.
Continuous Production Flow
Replace manual press braking with automated forming. Your output increases dramatically while labor costs drop. The system runs consistently at industrial speeds.
Technical Specifications
Parameter | Specification |
Material Compatibility | Galvanized Steel, PPGI, Aluminum, Aluzinc |
Thickness Range | 0.3mm - 0.8mm (up to 1.2mm heavy-duty) |
Yield Strength Capacity | Up to G550 (550 MPa) |
Forming Stations | 12-22 sequential passes |
Production Speed | 15-25 meters/minute |
Panel Length | Custom 3' to 20'10" (longer flashings to 20'11") |
Length Tolerance | ±1mm precision |
Roller Material | Cr12MoV die steel, vacuum heat-treated |
Roller Hardness | HRC 58-62 with 0.05mm chrome plating |
Shaft Diameter | 70-90mm (45# high-grade steel) |
Control System | Siemens/Mitsubishi PLC |
Drive System | Motor-reducer or chain drive |
Cutting System | Hydraulic shear (12-16 MPa) |
Application | Roof and vertical/horizontal wall panels |
Spanning Capability | Up to 6 meters between purlins |

Where Your Machine Creates Maximum Value
Industrial & Commercial Buildings
Your pre-engineered buildings need reliable roofing envelopes.
The trapezoidal roll forming machine produces IBR (Inverted Box Rib) sheets that span large distances. You reduce structural steel requirements. Your building frame costs decrease while maintaining load specifications.
For steel structure factories and warehouses, the profiles work as external skin in sandwich roof systems. Coastal industrial zones benefit from 0.5-0.7mm high-tensile steel handling.
Architectural Cladding Projects
You're not limited to roofing applications.
Commercial walls for shopping malls and office buildings require consistent aesthetic lines. The machine ensures scratch-free forming on decorative coatings. Your facades look modern while acting as wind-load barriers.
The system handles both vertical and horizontal installation orientations. You get architectural flexibility without compromising structural performance.
Renovation & Site-Specific Work
Complex retrofitting projects demand customized solutions.
Portable variants can deploy directly on-site. You produce sheets matching exact roof slope lengths. This eliminates horizontal laps that cause leakage in aging infrastructure.
For residential projects in high-precipitation or coastal areas, the machine processes Aluzinc coils with specialized non-damaging rollers. Your clients get leak-proof systems essential for tropical climates.
Perimeter Security Applications
Construction site hoarding and permanent fencing benefit from trapezoidal profiles.
The stiff panels require fewer vertical supports. You reduce installation costs for your B2B contractor clients. The Trimdek or IBR patterns provide both aesthetic appeal and structural rigidity.
Quality Standards You Can Verify
What to Inspect Before Acceptance
Your investment deserves rigorous validation.
Profile Geometry Verification
Use specialized gauges to check rib height, bottom width, and effective cover width. Test the overlap joint for tight water seal performance.
Roller Precision Testing
Dial indicators measure shaft concentricity. Run-out exceeding 0.05mm causes vibration and profile defects. Your machine should pass this test consistently.
Surface Treatment Validation
Portable hardness testers confirm roller heat treatment reaches HRC 58+. Soft rollers wear quickly and lose profile definition.
Hydraulic System Stress Check
Cycle the cutting shear continuously under maximum pressure. You should see no valve leakage and burr-free cuts on all materials.
Coating Protection Test
Run prepainted PPGI coils through the system. Chrome-plated rollers must leave zero scratches on finished surfaces.
Why Manufacturing Excellence Matters
National High-Tech Enterprise Credentials
You're partnering with a certified innovator.
Our ISO 9001 quality management system ensures consistent output. European CE certification confirms safety and environmental standards. North American CAS compliance demonstrates technical rigor.
Research-Backed Innovation
We collaborate with Yanshan University's National Cold Rolled Strip Equipment Engineering Research Center.
Our R&D team uses finite element analysis and AI-assisted simulation. You benefit from optimized roll designs and virtual debugging systems. Technologies are proven in production before reaching your facility.
Two patented innovations include advanced pattern roller design and automatic slitting systems. These patents directly improve your machine's performance.
Global Proven Performance
Your equipment comes from a supplier serving 150+ countries.
We've exported to Europe, North America, the Middle East, Southeast Asia, and South America. Long-term partnerships across continents validate our reliability.
Strategic cooperation with Siemens brings cutting-edge automation. Our status as Yanshan University's Graduate Practice Base ensures continuous technical advancement.
Frequently Asked Questions
What materials can this machine process?
You can run galvanized steel, PPGI, aluminum, and Aluzinc coils. Thickness ranges from 0.3mm to 1.2mm depending on your configuration. Yield strengths up to G550 are supported.
How do you ensure profile accuracy?
Our PLC control system maintains ±1mm length tolerance. Shaft concentricity testing and hardened rollers prevent deflection. Each forming station is precision-machined for consistent geometry.
Can the machine handle coated materials without damage?
Yes. Chrome-plated rollers (0.05mm layer) protect prepainted and decorative surfaces. The forming process is designed to eliminate scratching or marring.
What's the typical production speed?
Standard operation runs 15-25 meters per minute. Your actual speed depends on material thickness and profile complexity. The system maintains quality at maximum speeds.
Do you offer custom panel lengths?
Absolutely. We produce panels from 3 feet to 20 feet 10 inches. Longer flashings extend to 20 feet 11 inches. Custom specifications match your project requirements.
What maintenance does the machine require?
Regular lubrication of drive chains and hydraulic system checks. Roller wear inspection every 6 months. Our remote monitoring system alerts you to maintenance needs before issues arise.
How long does installation take?
Typical installation and commissioning require 5-7 days. Our technical team provides on-site training. You'll receive comprehensive operation manuals and ongoing support.
Can I integrate this with existing production lines?
Yes. The machine works standalone or integrates with decoilers, stackers, and material handling systems. We design connections based on your facility layout.
Complete Manufacturing Solution
Beyond equipment supply, you get comprehensive support.
We provide ODM and OEM services tailored to your specifications. Raw materials, machinery, and accessories are available through our one-stop platform.
Our product range complements your product: roof tile systems, CZ purlin equipment, light steel keel machines, metal embossing units, door and ceiling systems, high-frequency pipe welding, slitting lines, cut-to-length systems, shelf forming machines, floor decking equipment, and color stone tile production lines.
Multi-functional metal composite panel forming technology keeps you ahead of market trends. Equipment processes both traditional PPGI and new composite materials.
Start Your Production Upgrade
Ready to transform your metal roofing production? Contact our engineering team at zhongtuorollforming@gmail.com to discuss your specific trapezoidal roll forming machine requirements.
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