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A C-purlin roll forming machine is industrial machinery that takes steel coil (cold rolled, galvanized, etc.), flattens/levels it, gradually bends it via rolls into a “C”-shaped channel (with web, flanges, lips), possibly punches holes or slots, then cuts it to length. The resulting C-purlins are used structurally (roofing, framing, girts, etc.).
Here are the major parts of a typical machine / production line:
Module | Function / Purpose |
Decoiler (Uncoiler) | Holds the steel coil,allows it to unwind smoothly. Might be manual,hydraulic,single head,double head. |
Feeding / Guiding / Leveling | Straightens the strip,aligns it,flattens any coil-set to ensure accurate forming. |
Roll-Forming Section | Series of roll stands (each with rollers) that progressively shape the strip into the C profile. |
Punching / Notching Stations | Optional or required depending on design:to punch holes,slots,or cut notches in the web/flanges before or after forming. |
Cutting Device | After forming,to cut the C-purlin to required length. Can be hydraulic shear,mold cutter,flying saw,or fly cut (non-stop). |
Hydraulic / Power Station | Powers the cutting,punching,decoiler (if hydraulic),possibly leveling,etc. |
Control System (PLC) | For setting dimensions,adjusting speed,coordinating punches/cuts,automating size changes,safety interlocks. |
Output / Receiving Table or Stacker | To catch finished parts,stack them,possibly automate stacking. |
Depending on quality, capacity, and customization, different machines differ on:
Spec | Typical Ranges / Values |
Material Thickness | ~ 0.8 mm up to ~5.0 mm (sometimes more if heavy duty) depending on steel grade. |
Coil / Strip Width (Feeding Width / Effective Width) | Often from ~150 mm up to ~500 mm or more,depending on desired C size (web + flanges). |
Profile Sizes | Web heights roughly between 80–300 mm,flange &lip dimensions vary. cpjmachines...2 |
Forming / Production Speed | Anywhere from ~5–15 m/min for heavier or more complex configurations,up to ~30–40 m/min (or more) in high-speed models with fly cutting etc |
Number of Roll Stations | 10-25 stands / rollers depending how gradually the shape is formed (more stands = smoother forming,better accuracy) |
Drive / Transmission | Gearbox drives,chain or sprocket transmission among stands,motors range depending on thickness / speed;hydraulic systems for cutting/punching. |
Cutting / Punching | Options include stationary (stop forming,punch,cut) vs flying / non-stop cutting (cut while moving) for higher throughput. Material for cutters usually hardened steel (Cr12,GC15,etc.),often heat treated. kymachine.com...5 |
Power / Utilities | 3-phase electric (often 380V,50Hz in many suppliers),hydraulics for punch / cutter,sometimes servo drives. |
If you tell us these parameters, I can suggest machines better matched to your needs:
Expected profile size(s): web height, flange width, lip size (or a range)
Material thickness(es) (min & max)
Desired speed (m/min or output in meters per hour/day)
Budget range
Whether features like punching, flying cut, automatic size change are musts
A C-purlin roll forming machine is industrial machinery that takes steel coil (cold rolled, galvanized, etc.), flattens/levels it, gradually bends it via rolls into a “C”-shaped channel (with web, flanges, lips), possibly punches holes or slots, then cuts it to length. The resulting C-purlins are used structurally (roofing, framing, girts, etc.).
Here are the major parts of a typical machine / production line:
Module | Function / Purpose |
Decoiler (Uncoiler) | Holds the steel coil,allows it to unwind smoothly. Might be manual,hydraulic,single head,double head. |
Feeding / Guiding / Leveling | Straightens the strip,aligns it,flattens any coil-set to ensure accurate forming. |
Roll-Forming Section | Series of roll stands (each with rollers) that progressively shape the strip into the C profile. |
Punching / Notching Stations | Optional or required depending on design:to punch holes,slots,or cut notches in the web/flanges before or after forming. |
Cutting Device | After forming,to cut the C-purlin to required length. Can be hydraulic shear,mold cutter,flying saw,or fly cut (non-stop). |
Hydraulic / Power Station | Powers the cutting,punching,decoiler (if hydraulic),possibly leveling,etc. |
Control System (PLC) | For setting dimensions,adjusting speed,coordinating punches/cuts,automating size changes,safety interlocks. |
Output / Receiving Table or Stacker | To catch finished parts,stack them,possibly automate stacking. |
Depending on quality, capacity, and customization, different machines differ on:
Spec | Typical Ranges / Values |
Material Thickness | ~ 0.8 mm up to ~5.0 mm (sometimes more if heavy duty) depending on steel grade. |
Coil / Strip Width (Feeding Width / Effective Width) | Often from ~150 mm up to ~500 mm or more,depending on desired C size (web + flanges). |
Profile Sizes | Web heights roughly between 80–300 mm,flange &lip dimensions vary. cpjmachines...2 |
Forming / Production Speed | Anywhere from ~5–15 m/min for heavier or more complex configurations,up to ~30–40 m/min (or more) in high-speed models with fly cutting etc |
Number of Roll Stations | 10-25 stands / rollers depending how gradually the shape is formed (more stands = smoother forming,better accuracy) |
Drive / Transmission | Gearbox drives,chain or sprocket transmission among stands,motors range depending on thickness / speed;hydraulic systems for cutting/punching. |
Cutting / Punching | Options include stationary (stop forming,punch,cut) vs flying / non-stop cutting (cut while moving) for higher throughput. Material for cutters usually hardened steel (Cr12,GC15,etc.),often heat treated. kymachine.com...5 |
Power / Utilities | 3-phase electric (often 380V,50Hz in many suppliers),hydraulics for punch / cutter,sometimes servo drives. |
If you tell us these parameters, I can suggest machines better matched to your needs:
Expected profile size(s): web height, flange width, lip size (or a range)
Material thickness(es) (min & max)
Desired speed (m/min or output in meters per hour/day)
Budget range
Whether features like punching, flying cut, automatic size change are musts
