High Safety Ridge Flashing Roll Former With Chain Drive And Trapezoidal Punch

1. Production Line Overview

Designed for metal roofing accessory manufacturers, this line provides efficient and safe production of precision ridge valley flashing profiles with punching function for interlocking roof panels.

2. Profile Overview

This valley flashing profile is formed from galvanized steel sheets with a thickness of 0.3–0.8mm. It features pre-folded edges and punched trapezoidal notches for precise rib roof panel interlocking. It's widely used in residential, industrial, and commercial metal roofing systems for water sealing and structural transitions.

3. Production Process

Flow Chart:

Hydraulic Decoiler - Guide - Roll Former - Hydraulic Punching - Roll Former - Hydraulic Cutter - Out Table

Process:

The forming section features chain-driven stations with protective guards and pre-folding rollers for edge bending. Punching is integrated mid-line after folding to produce accurate trapezoidal notches, ensuring smooth panel interlocking. The hydraulic cutter provides precise profile cutting for final flashing segments.

4. Technical Parameters

5. Key Focus

• Pre-folding rollers reduce edge sharpness for safer handling

  
  

• Integrated trapezoidal punching enables rib panel compatibility

  
  

• Chain drive system with safety cover enhances machine durability

  
  

• Mid-line punching preserves fold integrity and precision

  
  

• Designed for high-efficiency flashing production in roofing industries

6. Production Line Components

7. Customization Options

This roll forming line can be customized to produce valley flashing profiles with different notch shapes and positions to match various rib roof panels. Optional upgrades include auto punching mold exchange, digital notch positioning system, extended forming stations for complex edge folding, and servo-controlled punching for higher precision.

Metalign is a trusted manufacturer specializing in cold roll forming machine production and custom roll forming solutions. Located in Botou City, the heart of China’s roll forming industry, we bring over 30 years of combined technical and engineering experience to every project.

Our team is dedicated to designing and building precision roll forming lines tailored to your profile needs — from roofing and purlin lines to shelving, door frames, highway guardrails, and more. We are known for our practical designs, robust structures, and responsive after-sales support.

With a strong reputation in global markets including North America, Europe, Southeast Asia, and the Middle East, Metalign is committed to helping customers improve efficiency, reduce costs, and gain a competitive edge.