helen@hbxinnuorollforming.com
- Versatile C profile cold roll forming line with auto adjustment
- Processes C channels C purlins C beams in a single machine
- Rigid 450H welded steel frame with CNC machined base plate
- Hydraulic post-cut shear with programmable length and quantity
- Dual decoiler option for non-stop coil changeover capability
- Hardened Cr12 roller dies with quick-release cartridge system
- Integrated hydraulic punch stations with interchangeable die sets
This heavy duty C roll forming machine is a versatile automatic cold roll production line engineered to manufacture a complete range of C-shaped steel profiles — including standard C channels, C purlins, C beams, and custom C sections — all from a single unified roll forming platform. The machine features independent hydraulic punching stations positioned before and after the forming section, enabling complex hole patterns without compromising forming precision. Every structural joint is CO2 gas-shielded welded for full penetration strength, and the 450H welded steel frame is machined on a 12-meter CNC gantry mill to guarantee 0.05mm flatness across the entire forming bed.
| Parameter | Specification |
|---|---|
| Product Category | C profile multi-purpose cold roll forming machine |
| Forming Rows | 14-18 stations, progressive roller forming |
| Frame Construction | 450H steel beam welded structure, CNC precision machined |
| Frame Plate Thickness | 30-35mm vertical side plates with stiffening webs |
| Shaft Assembly | Φ80-95mm diameter, 40Cr alloy steel, ground and hard chrome finish |
| Drive Motor | 15-22KW main motor with gear reducer, variable frequency drive |
| Chain Specification | 2-inch pitch heavy-duty roller chain, dual strand |
| Cutting Method | Hydraulic post-cut guillotine shear, programmable cycle |
| Punching System | Dual hydraulic punch units (pre and post), quick-change die cartridges |
| Forming Speed Range | 6-12 m/min, infinitely adjustable via VFD |
| Machine Weight | Approximately 10 tons (net, excluding decoiler) |
| Profile Type | Width Range | Height Range | Lip Range | Max Thickness |
|---|---|---|---|---|
| Standard C Channel | 80-300 mm | 40-80 mm | 10-20 mm | 2.5 mm |
| C Purlin (Structural) | 100-350 mm | 50-100 mm | 15-25 mm | 3.0 mm |
| C Beam (Heavy Section) | 120-400 mm | 60-120 mm | 15-30 mm | 3.0 mm |
| Unequal-Leg C Profile | 80-200 mm | 35-75 mm | 10-15 mm (asymmetric) | 2.0 mm |
| Outward-Flange C Section | 100-300 mm | 60-80 mm | 12-25 mm (outward) | 2.5 mm |
| Steel Type | Common Standards | Yield Strength | Surface Condition |
|---|---|---|---|
| Galvanized Steel Coil | ASTM A653, EN 10346, JIS G3302 | 235-350 MPa | Zinc coated, regular spangle |
| Cold Rolled Steel Coil | ASTM A1008, EN 10130, JIS G3141 | 140-280 MPa | Bright, lightly oiled |
| Hot Rolled Pickled & Oiled | ASTM A1011, EN 10111, JIS G3134 | 235-355 MPa | Pickled, oiled, grey finish |
| Pre-painted Galvanized | ASTM A755, EN 10169 | 235-350 MPa | PE / SMP / PVDF top coat |
| Position | Component | Dimension | Key Feature |
|---|---|---|---|
| 1 | Hydraulic Decoiler | 1,500 × 1,800 mm | Manual expansion, 5-ton, pneumatic brake |
| 2 | Feed Guide & Leveling | 3,500 mm length | 7-roller cassette with side guide rollers |
| 3 | Pre-Punch Unit | 1,200 mm section | Hydraulic, 4-post guided, 40-ton capacity |
| 4 | Main Forming Section | 9,000 mm length | 14-18 stations, top/bottom shaft, quick-change rollers |
| 5 | Post-Punch Unit | 1,200 mm section | Hydraulic, multi-die carousel, programmable pattern |
| 6 | Hydraulic Guillotine Shear | Integrated | 4-column guided, automatic blade return |
| 7 | Run-Out Conveyor ×2 | 3,000 × 2 mm | Free-roller table with adjustable side guides |
| 8 | PLC Control Cabinet | 800 × 600 × 2,000 mm | Siemens / Delta PLC, 10" HMI touchscreen |
Total Line Length: Approximately 22 meters × 3 meters wide. Minimum workshop length recommended: 25 meters including service clearance.
| Die Type | Hole Shape | Typical Size Range | Application |
|---|---|---|---|
| Round Punch | Circular | Φ12 - Φ22 mm | Bolt holes for purlin-to-rafter connection |
| Slotted Punch | Oval / oblong | 14×22 mm, 18×25 mm | Adjustable bolted connections |
| Square Punch | Rectangle | 14×14 mm, 18×18 mm | Carriage bolt and clip fastening |
| Service Hole | Large round | Φ30 - Φ50 mm | Electrical and plumbing service pass-through |
| Notching Die | End notch | Per profile web depth | Purlin lap-joint end preparation |
| Custom Pattern | Per drawing | Any geometry | Project-specific connection designs |
| Adjustment Axis | Mechanism | Control Method | Changeover Time |
|---|---|---|---|
| Profile Width (W) | Motorized lead screw, dual-side sync | HMI input → encoder feedback | Under 60 seconds |
| Side Height (H) | Motorized vertical screw jack | HMI input → encoder feedback | Under 60 seconds |
| Lip Length (L) | Manual handwheel with digital readout | Scale indicator | 2-3 minutes |
| Roller Gap (T) | Motorized gap adjustment per station | HMI thickness preset | Under 30 seconds |
