Double Layer Trapezoidal 686 & Corrugated 762 Roll Forming Machine

The ZTRFM Double Layer Roll Forming Machine is designed to produce both Trapezoidal 686 and Corrugated 762 roofing sheets on one production line. Featuring a heavy-duty frame, precision roll forming technology, and intelligent PLC control, it offers high profile accuracy, reliable performance, and maximum production flexibility while saving factory space and investment.

Trapezoidal 686 – High Strength for Industrial Roofing

The Trapezoidal 686 profile features deep ribs and high structural strength, making it ideal for factories, warehouses, workshops, agricultural buildings, and commercial projects.

Advantages

  • Excellent load-bearing capacity
  • Strong resistance to wind and heavy rain
  • Modern architectural appearance
  • Suitable for large-span roofing systems

Corrugated 762 – Economical and Versatile

The Corrugated 762 profile remains one of the world's most popular roofing sheets thanks to its classic wave design and outstanding versatility.

Advantages

  • Cost-effective roofing solution
  • Fast installation
  • Lightweight structure
  • Suitable for roofing and wall cladding
  • Widely used for residential, commercial, and agricultural buildings

Machine Advantages

Double Layer Design for Higher Productivity

The upper and lower roll forming systems are integrated into one machine, allowing customers to produce two roofing profiles without purchasing two separate production lines. This design reduces floor space, lowers investment costs, and improves production flexibility.


Heavy-Duty Frame for Long-Term Stability

The machine is built with a 400 mm H-beam base frame and 16 mm welded support plates. After welding, the frame undergoes vibration stress relief and precision machining to ensure excellent rigidity, minimize vibration, and maintain forming accuracy during continuous production.


Independent Roll Forming Design

Unlike conventional forming methods, ZTRFM adopts an independent rolling design, which effectively releases internal stress in the metal sheet during forming. This results in smoother panels, higher dimensional accuracy, and reduced deformation after production.


Premium Forming Rollers

All rollers are manufactured from high-grade 45# forged steel, precision CNC-machined, heat-treated, and hard chrome-coated. The hardened surface improves wear resistance, corrosion resistance, and roller lifespan while ensuring consistent profile quality.


Stable Feeding and Scratch-Free Production

The feeding system incorporates adjustable guide wheels, stainless steel guide rollers, and protective plastic rollers to ensure smooth coil feeding while preventing scratches on pre-painted steel sheets, delivering a cleaner finished product.


Reliable Transmission & Cutting System

The machine uses a reinforced chain transmission combined with a hardened helical gearbox for smooth power delivery. The four-pillar hydraulic cutting structure provides accurate, burr-free cutting and maintains stable performance during continuous production.


Intelligent PLC Control

Equipped with a Delta PLC control system, touchscreen interface, and Omron encoder, operators can easily set production length and quantity. Aviation plug connections simplify installation and commissioning, allowing the machine to be put into production quickly after arrival.


Why Choose ZTRFM

  • Two roofing profiles produced on one machine
  • Heavy-duty industrial frame for maximum stability
  • Independent rolling technology for higher profile accuracy
  • CNC-machined, chrome-coated rollers with extended service life
  • Scratch-free feeding system for pre-painted steel
  • Stable hydraulic cutting with four-pillar guidance
  • Reliable Delta automation and premium electrical components
  • Customized profile design and professional lifetime technical support