High-Speed Trapezoidal Roofing Sheet Roll Forming Machine with Pre-Cutting System

The Zhongtuo High-Speed Trapezoidal Roofing Sheet Roll Forming Machine is designed for efficient and precise roofing sheet production. Equipped with a hydraulic decoiler, waste-free pre-cutting system, servo-driven gearbox transmission, flying cutting system, and a 12-meter automatic stacker, it achieves speeds of up to 40 m/min with excellent accuracy and stability.

Suitable for processing 0.2–0.6 mm GI, PPGI, and high-strength steel coils (G350–G550 MPa), the machine is widely used in industrial buildings, warehouses, commercial roofing projects, and agricultural structures.

Key Advantages

1. Hydraulic Decoiler with Coil Loading Car

The production line is equipped with a 6-ton hydraulic decoiler and hydraulic coil loading car, ensuring safe, efficient, and convenient coil handling.

Benefits:

  • Reduces labor requirements
  • Improves coil loading efficiency
  • Minimizes downtime during coil changes
  • Enhances workplace safety
  • Suitable for heavy coil operation
  • Supports continuous production

The hydraulic loading car automatically lifts and positions the coil onto the decoiler, significantly improving productivity and operator safety.


2. Waste-Free Pre-Cutting Technology

Unlike conventional post-cutting systems, the integrated pre-cutting design eliminates tail-end material waste during coil replacement.

Benefits:

  • Maximizes material utilization
  • Reduces raw material costs
  • Allows fast coil changes
  • Minimizes production downtime
  • Prevents roller deformation caused by leaving material inside the machine overnight

This technology can save substantial material costs throughout the machine's service life.


3. High-Speed Production up to 40 m/min

Driven by a servo motor and gearbox transmission system, the machine can achieve production speeds of up to 40 meters per minute.

Benefits:

  • Higher daily production capacity
  • Lower manufacturing cost per sheet
  • Ideal for large-volume roofing projects
  • Increased production efficiency

4. Precision Roll Forming Design

The machine utilizes a 24-station roll forming system with an advanced independent forming design that effectively releases internal stress during the forming process.

Benefits:

  • Superior sheet flatness
  • Excellent profile consistency
  • Higher dimensional accuracy
  • Reduced profile distortion

5. Heavy-Duty Machine Structure

The roll former is built with a robust and durable structure, including:

  • Cast iron archway stands
  • Φ80 mm solid shafts
  • Heat-treated 45# steel shafts
  • SCM440 roller material
  • Stress-relieved machine frame

Benefits:

  • Excellent machine stability
  • Reduced vibration during operation
  • Longer service life
  • Reliable performance under continuous high-speed production

6. Premium Roller Manufacturing

The rollers are manufactured from high-quality forged steel and coated with hard chrome plating.

Benefits:

  • Outstanding wear resistance
  • Improved corrosion protection
  • Longer roller lifespan
  • Better finished sheet surface quality

7. Servo Flying Cutting System

The machine is equipped with a hydraulic tracking flying cutting system powered by a servo motor, allowing continuous production without stopping.

Benefits:

  • Non-stop cutting operation
  • High cutting accuracy
  • Smooth and clean cutting edges
  • Increased overall production efficiency

The four-column cutting structure further enhances cutting stability and precision.


8. Intelligent PLC Control System

The production line uses internationally recognized electrical and control components, including:

  • Delta PLC
  • Delta Touch Screen
  • Delta Inverter
  • Kubler Encoder
  • Yuken Hydraulic Components

Benefits:

  • User-friendly operation
  • Easy parameter setting
  • Accurate length control
  • Reliable system performance
  • Low maintenance requirements

Operators can easily set production length, quantity, and operating parameters through the touch-screen interface.


9. Automatic Stacking System

The machine is equipped with a 12-meter automatic stacker for efficient product collection and stacking.

Benefits:

  • Reduced labor costs
  • Improved production automation
  • Neat and organized stacking
  • Prevention of sheet surface damage
  • Increased packaging and loading efficiency

The automatic stacker is especially suitable for high-speed production and large-volume orders.