3057 High Precision Cast-Iron Roll Former Producing Custom C And Z Purlins Efficiently
Overview
Production Line
This roll forming production line targets metal building manufacturers, construction companies, and structural steel suppliers. It offers high efficiency, precision, and flexibility for producing multi-size C and Z purlins. The automated size change and dual-layer design improve productivity while minimizing downtime, serving demanding industrial and commercial roofing markets.
Profile
C and Z purlins produced by this line use galvanized or cold-rolled steel, thickness 1.5-3mm. Shapes include standard C and Z profiles with uniform flanges and web. Features high precision, smooth edges, and optional pre-punched holes. Applications include industrial roofing, steel frame buildings, warehouses, and agricultural structures, providing structural support and durability.
Material: Galvanized Steel / PPGI / Aluminum
Thickness: 1.5-3.0mm
Yield strength: 200 - 350 Mpa
Tensil stress: 200 -350 Mpa
Production Process
Flow Chart: Decoiler -> Guide -> Pre Punch -> Roll Forming Machine -> Hydraulic Cut -> Out Table
Process: The line unrolls steel coils, aligns material via guides, pre-punches holes for fast assembly, then forms profiles in a cast-iron stand roll former with chain drive. Hydraulic cutters precisely cut purlins to length. Dual-layer roll forming allows multi-size production efficiently, delivering high-precision C and Z purlins for structural and roofing applications.
Key Focus
- Dual-layer design enables simultaneous production of different C and Z purlin sizes
- Cast-iron stand ensures high rigidity and long-term stability
- Chain-driven roll former provides smooth, precise forming at high speed
- Automatic size change reduces downtime, increases production efficiency
- Integrated pre-punching allows easy assembly and customizable profiles
Technical Parameters
Decoiler
| Parameter |
Specification |
| Structure |
Double-support |
| Working Form |
Manual, motorized, or hydraulic |
| Loading Capacity |
5T/7T/10T, customizable |
| Coil Width |
1250mm, customizable |
| Inner Diameter |
Φ450 - Φ550 mm |
| Out Diameter |
1500 mm |
| Model |
DC-MU1 |
Optional Upgrade: Decoiler
Guiding Device With Pre-Cut Broaching Shear
| Component |
Function |
| Guiding Roller |
Adjust the coil feeding width |
| Pre-cut Broaching Shear |
Cut the steel coil before roll forming |
| Digital Display |
See the feeding width directly |
Roll Forming Machine
| Parameter |
Specification |
| Working Speed |
Around 20 m/min |
| Structure |
Wall panel type. Optional: Cast-iron stands or guide pillar |
| Driving System |
Chain system. Optional: Gearbox |
| No. of Forming Stations |
18 stands |
| Shaft Diameter |
70mm solid shaft |
| Motor Power |
5.5 Kw |
| Roller Material |
45# steel polished and chromed HRC58-62° |
| Shaft Material |
High grade 45# steel polished(CNC lathe) |
| Steel Coil Material |
PPGI or GI |
| Steel Coil Thickness |
0.25-0.8mm |
Optional Upgrade: Cover
Cutter
| Parameter |
Specification |
| Common Power Type |
Hydraulic. Optional: motor type. |
| Hydraulic Power |
4-5.5Kw, customizable |
| Blade Material |
Cr12 Mov |
| Hardness |
With quenched treatment HRC 58 - 62° |
Product Collection
| Solution |
Specification |
| Solution 1 |
Run-out table |
| Solution 2 |
Auto stacker |
| Power Type |
Non-powered, mainly manual handling |
| Power Type |
Motorized, 3Kw |
| Dimension |
Length 4m, customizable |
| Dimension |
Length 4m-6m, customizable |
PLC Control Cabinet
| Component |
Specification |
| PLC Brand |
Delta, customizable |
| Power Supply |
380v, 50HZ, 3Phase (It depends on customer requirement) |
| Encoder Brand |
Omron, customizable |
| Language |
Chinese + English, Spanish, French, Russian, etc |
| Touch Screen |
MCGS, customizable |
| Operation type |
Manual /auto two-type switch |
| Hanging Arm Type |
Saving Space |
| Standing Type |
Greater component integration and flexible positioning |
Hydraulic Power Unit (HPU)
| Parameter |
Specification |
| Motor Power |
5.5Kw |
| Oil Required |
N32 or N46 hydraulic oil is available |
| Design |
The hydraulic station has a fan cooling system |
| Optional |
It can be installed on or inside the roll former to save space |
Analysis
| Component |
Function |
| Decoiler |
Unrolls steel coils, smooth feeding, reduces material tension |
| Guide |
Aligns steel, ensures precise forming, prevents material deviation |
| Pre Punch |
Prepares holes for assembly, improves efficiency, reduces post-processing |
| Roll Forming Machine |
Cast-iron stand ensures stability, chain drive enables high-speed forming |
| Hydraulic Cut |
Accurate length cutting, minimizes burrs, ensures profile consistency |
| Out Table |
Collects finished purlins, reduces manual handling, supports automated workflow |
Production Line Components
| Component |
Quantity |
| Hydraulic Decoiler |
1 set |
| Punching Unit |
1 set |
| Roll Former |
1 set |
| Hydraulic Cutter |
1 set |
| Out Table |
2 sets |
| PLC Cabinet |
1 set |
| Hydraulic Station |
1 set |
Customization Options
This production line allows customization of profile width, height, and flange size for both C and Z purlins. Pre-punch hole positions, pitch, and quantity can be adapted. Roll former settings, hydraulic cutting length, and dual-layer configuration can be tailored to produce multi-size purlins in a single line for diverse roofing and structural applications.
