Automatic C Purlin Roll Forming Machine — Steel Channel Production Line
This C purlin roll forming machine produces high-precision C-shaped steel channels for steel structure buildings, warehouses, factories, and solar mounting projects. Equipped with an intelligent PLC touchscreen control system, the machine enables fast size changeover across multiple C purlin profiles. The heavy-duty archway frame with reinforced steel plates ensures stability and long service life under continuous industrial operation.
Technical Specifications
| Parameter |
Specification |
| Control System |
PLC touchscreen HMI with self-developed programming |
| Size Changeover Time |
Approximately 1 minute via 4-motor encoder system |
| Forming Stations |
15-18 rows (configured per profile complexity) |
| Frame Structure |
400H-450H archway type, 40mm thick steel plate |
| Shaft Material |
Φ85-95mm 40Cr alloy steel, precision ground & chrome plated |
| Drive System |
Hydraulic motor with adjustable speed regulation |
| Transmission Chain |
2-inch heavy-duty industrial roller chain |
| Shear Type |
Hydraulic stop-cut, single-knife gapless system |
| Mold Roller Material |
GCr15 bearing steel, 6-step process, HRC 58-62 hardness |
| High-Wear Rollers |
Cr12MoV alloy steel for side/diagonal/straightening wheels |
| Surface Treatment |
Shot blasting pretreatment + electrostatic powder coating |
| Welding Method |
CO2 gas-shielded welding, slag-free structural joints |
| Decoiler Capacity |
Heavy-duty cantilever type, supports up to 5-ton coils |
| Total Line Length |
Approximately 19.6 meters |
| Floor Space Required |
20m × 3m (plus 1.5-2m clearance each side) |
Profile Range
| Dimension |
Range |
| Bottom Width (W) |
75-300 mm |
| Side Height (H) |
40-80 mm |
| Lip Width (L) |
10-20 mm |
| Material Thickness |
1.0-2.5 mm (galvanized / cold-rolled steel) |
| Yield Strength |
235-345 MPa |
Production Line Components
| Component |
Length |
Function |
| Decoiler |
1,100 mm |
Cantilever type, 5-ton coil capacity, manual expansion |
| Leveling Device |
3,500 mm |
7-roller straightening with guided entry |
| Forming Unit |
8,950 mm |
15-18 progressive roller stations with inline punching |
| Hydraulic Shear |
Integrated |
Stop-cut gapless single-knife, compatible with all sizes |
| Output Brackets ×2 |
3,000 mm × 2 |
Run-out table with side guides and length stopper |
| Control Cabinet |
Standalone |
PLC touchscreen HMI, emergency stop, diagnostics display |
| Hydraulic Pump Station |
Under-mounted |
Powers shear cylinder and drive motor hydraulic circuit |
Competitive Comparison
| Feature |
This Machine |
Typical Competitor |
| Frame Plate |
40mm archway with ribs |
30mm flat plate |
| Frame Machining |
12m CNC mill, 0.05mm tolerance |
Shorter bed, lower precision |
| Mold Process |
6-step + chrome plate, HRC 58-62 |
4-step, no chrome |
| Shear System |
Single knife, all sizes |
Two knives, blade changes |
| Shaft Spec |
40Cr steel, Φ85-95mm |
Φ70-80mm standard |
| Wear Rollers |
Cr12MoV alloy steel |
Standard bearing steel |
| PLC System |
Self-developed, remote fix |
Outsourced, limited support |
Quality & Certifications
- ISO 9001 quality management system certified
- CE certification for European market compliance
- Multiple national patents with high-tech enterprise designation
- Complete in-house QC inspection equipment and testing protocols
- First piece produced equals finished product — zero trial-and-error waste
After-Sales Service
- On-site installation and commissioning by factory-trained technicians
- Comprehensive operator training with detailed video operation guides
- 24/7 remote engineering support via video call and instant messaging
- Self-developed PLC enables instant electrical troubleshooting over one call
- 12-month warranty with lifetime technical support and spare parts supply
