This Automatic CZU Purlin Roll Forming Machine with Pre-Cutting and Post-Punching is designed for high-precision and flexible production of C, Z and U steel purlins. The line adopts a pre-cutting structure combined with post-punching system, ensuring clean cutting edges, accurate hole positioning and stable continuous forming.
Formed profiles: C purlin, Z purlin, U channel
Forming technology: Cold roll forming
Production configuration: Pre-cutting + post-punching
Control system: PLC automatic control
Operation mode: Fully automatic
Material thickness range: 1.5–3.5 mm
Applicable materials: Galvanized steel, black steel, PPGI
Yield strength: ≤ 350 MPa
Forming speed: 10–20 m/min
Roller stations: 16–20 stations
Roller material: GCr15 bearing steel
Roller processing: CNC machined and heat treated
Main shaft diameter: 75–85 mm
Shaft material: 45# forged steel
Machine structure: Heavy-duty welded steel frame
Drive system: Gearbox drive
Cutting system: Hydraulic pre-cutting
Punching system: Hydraulic post-punching
Punching molds: Customizable punching dies
Punching accuracy: High precision positioning
Cutting blade material: Cr12MoV heat treated steel
Length control: Encoder automatic measurement
Length tolerance: ±1 mm
Width adjustment: Motorized automatic adjustment
Profile height adjustment: PLC controlled
Main motor power: 18.5–30 kW
Hydraulic station power: 11–15 kW
Power supply: 380V / 50Hz / 3 Phase
Electrical components: Siemens / Schneider optional
Human machine interface: Touch screen HMI
Control cabinet: Independent electrical cabinet
Noise level: Low industrial noise
Production stability: Continuous stable operation
Energy efficiency: Optimized hydraulic and motor system
Maintenance: Easy maintenance
Installation: Simple installation
Safety system: Emergency stop and safety protection
Machine color: Blue (customizable)
Working environment: Industrial workshop
Application: Steel structure buildings
Application: Warehouses and factories
Application: Prefabricated construction projects
The pre-cutting design ensures smooth profile edges before forming, while the post-punching system guarantees accurate hole positions after forming. This configuration improves overall product quality and production flexibility, making it suitable for customized steel structure projects.
We provide full technical support including installation, commissioning, operator training and long-term spare parts supply to ensure stable and efficient production.



