interchangeable cz purlin roll forming machine

CZ purlin roll forming machine

Core Function Detailed Description

1.In-line Punching System

• Function Description: Configured with a high-precision hydraulic in-line punching unit, supporting simultaneous punching on the purlin web and flange. The punching position, quantity, and hole diameter
• can be set via the touch screen, realizing fully automatic punching without stopping the machine.

2.Front Cutting System (Pre-cutting)

• Function Description: Adopts a hydraulic front-cutting (pre-cutting) mechanism, installed before the roll forming unit. It cuts the raw material to the fixed length first, then sends it to the forming station, effectively avoiding material deformation during post-cutting and ensuring the flatness of the purlin end face.
• Working Principle: The encoder measures the feeding length in real time. When reaching the preset length, the hydraulic cutter acts instantly to cut the flat material, then the cut material is fed into the forming machine for roll forming.
• Key Advantages:
  • Universal cutting mold design, no need to replace the cutter when switching different purlin sizes (C80–300/Z120–300);
  • Cutter material: Cr12MoV steel, heat-treated hardness HRC 58–60, with long service life;
  • Cutting precision: Length tolerance ≤ ±0.5mm, end face burr-free, no secondary finishing required.

3.Embossing Roller Device

• Function Description: Equipped with custom embossing rollers between the leveling unit and punching unit, used to process anti-slip patterns, reinforcement ribs, or customer-specific logos on the purlin surface. The embossing depth and pattern can be customized according to requirements.
• Key Design:
  • Embossing roller material: 40Cr alloy steel, heat-treated for high hardness and wear resistance;
  • Pattern type: Diamond, herringbone, or custom linear patterns;
  • Adjustable embossing pressure to adapt to different material thicknesses without damaging the substrate;
  • Synchronized with the main forming speed to ensure consistent pattern spacing and clarity.
   
• Advantages: Enhances the structural strength and surface friction of the purlin, preventing slipping during installation; improves the overall aesthetics and product added value.

4.Manual Changeover System (C/Z Purlin Switching)

• Function Description: Adopts a manual quick-change structure for switching between C-shaped and Z-shaped purlins, with no need to replace rollers or spacers. Operators can complete the shape changeover by adjusting the flip device and positioning bolts, which is cost-effective and easy to maintain compared with automatic changeover.
• Operation Steps:
  1. Stop the machine and loosen the positioning bolts of the forming frame;
  2. Manually flip the upper roller set to switch between C/Z forming modes;
  3. Adjust the horizontal and vertical positioning of the rollers according to the target purlin size;
  4. Lock the bolts and test run to confirm the dimension accuracy.
   
• Advantages: Simple structure, low failure rate, no need for hydraulic or servo auxiliary, suitable for small and medium-sized batch production; changeover time ≤ 15 minutes.

• Item	Specification
  Applicable Material	Galvanized Steel, Cold Rolled Steel, Black Steel
  Material Thickness	1.5–3.0 mm (customizable)
  Purlin Specification	C80–300mm, Z120–300mm
  Forming Speed	8–15 m/min (adjustable)
  Forming Stations	18–24 stations
  Shaft Diameter	80–90 mm
  Roller Material	GCr15 Bearing Steel, quenched & chrome-plated, HRC 58–62
  Driving Mode	Variable frequency motor drive, PLC control
  Control System	Siemens PLC + Touch Screen Operation
  Punching System	Hydraulic pre-punching, web & flange punching optional
  Cutting Method	Hydraulic pre-cutting (front cut), fixed-length cutting
  Embossing Device	Custom embossing roller for anti-slip or reinforcement patterns
  Main Motor Power	18–22 kW
  Overall Dimension	Approx. 12000×2200×1800 mm
  Total Weight	Approx. 14–16 Tons
  Certifications	CE / ISO International Quality System Certified