This double layer roll forming machine is designed for manufacturing two popular roofing sheet profiles (840 and 850 models) on a single machine frame. The equipment adopts an advanced electric cutting system, precision forming rollers, and PLC automatic control to ensure high-speed production, accurate length control, and smooth cutting performance.
The dual-layer structure allows quick switching between two profiles, greatly improving production flexibility while saving factory space and investment cost.
1. Machine Type: Double layer roll forming machine
2. Profile Model: 840 roofing sheet
3. Profile Model: 850 roofing sheet
4. Profile Type: Corrugated & trapezoidal roofing panels
5. Applicable Material: Galvanized steel (GI)
6. Applicable Material: Pre-painted galvanized steel (PPGI)
7. Applicable Material: Aluminum coil
8. Material Thickness: 0.3mm – 0.8mm
9. Feeding Width: Customized according to drawing
10. Forming Stations: 14–18 stations per layer
11. Roller Material: 45# high-strength forged steel
12. Roller Surface Treatment: Hard chrome plating
13. Shaft Material: 45# steel
14. Shaft Diameter: 70mm–80mm
15. Drive Method: Chain transmission system
16. Main Motor Power: 5.5KW – 7.5KW
17. Cutting Method: Electric shear cutting
18. Blade Material: Cr12 heat-treated steel
19. Cutting Accuracy: ±2mm
20. Forming Speed: 10–20 m/min
21. Control System: PLC automatic control
22. Operation Interface: Touch screen control panel
23. Length Control: Encoder automatic measurement
24. Voltage: 380V / 50Hz / 3 Phase (customizable)
25. Frame Structure: Heavy-duty welded steel frame
26. Machine Length: Approx. 6–8 meters
27. Machine Weight: Approx. 6–8 tons
28. Machine Color: Blue & Yellow (customizable)
29. Layer Switching: Manual deck changeover
30. Decoiler Option: Manual or hydraulic decoiler
31. Decoiler Capacity: 5T – 10T optional
32. Cooling System: Natural cooling
33. Lubrication System: Manual lubrication
34. Safety Device: Emergency stop button
35. Electrical Protection: Overload protection system
36. Surface Treatment: Anti-rust paint coating
37. Production Mode: Continuous automatic forming
38. Noise Level: Low vibration and stable operation
39. Automation Level: Fully automatic production
40. Space Efficiency: Two profiles in one machine
41. Investment Efficiency: Reduced equipment cost
42. Stability: High precision roller alignment
43. Durability: Long service life components
44. Application: Industrial roofing production
45. Application: Warehouse roofing panels
46. Application: Steel structure buildings
47. Application: Commercial roofing projects
48. Application: Agricultural sheds
49. Maintenance: Easy installation and maintenance
50. Certification: CE certification available
The electric cutting system provides faster response and higher production efficiency compared with traditional hydraulic cutting. Precision rollers ensure accurate profile shaping and smooth surface finish. The PLC system allows users to easily set production length and quantity, improving operational convenience and reducing labor cost.
The complete line includes decoiler, feeding guide device, double layer forming system, electric cutting device, PLC control cabinet, and output table. Optional auto stacker, embossing system, and protective film laminating device are available based on customer requirements.
We offer installation guidance, operator training, spare parts supply, and lifetime technical support to guarantee stable and efficient machine operation.



