Product Overview

The 840/850 Electric Shear Double Layer Roll Forming Machine is specially designed to produce two widely used roofing sheet profiles on a single machine frame. With electric shear cutting and PLC automatic control, this machine offers stable performance, precise cutting, and excellent production flexibility while saving factory space and investment cost.

Technical Specifications & Key Attributes

• Machine Type: Double layer roll forming machine

• Cutting System: Electric shear cutting

• Forming Layers: Upper and lower independent layers

• Profile Type: 840 & 850 metal roofing sheets

• Raw Material: Color steel, galvanized steel, PPGI, GI

• Material Thickness: 0.3–0.8 mm

• Effective Width: 840 / 850 mm

• Forming Speed: 10–20 m/min

• Roller Stations: 14–18 stations per layer

• Roller Material: 45# steel, CNC processed, heat treated

• Shaft Diameter: 70–80 mm

• Shaft Material: High-strength solid steel

• Frame Structure: Heavy-duty welded steel structure

• Drive System: Chain drive transmission

• Main Motor Power: 7.5–11 kW

• Cutting Accuracy: ±1 mm

• Control System: PLC automatic control

• Operation Interface: Touch screen HMI

• Length Measurement: Encoder automatic control

• Profile Switching: Electric or manual switching

• Production Mode: Fully automatic continuous operation

• Electrical Components: International brand

• Voltage Standard: 380V / 50Hz / 3 Phase (customizable)

• Noise Level: Low working noise

• Surface Finish: Smooth and scratch-free panels

• Safety System: Emergency stop and safety guards

• Maintenance Cost: Low

• Machine Color: Blue (customizable)

• Brand: TOPPO Machinery

• Certification: CE / ISO

• Service Life: Long-term industrial use

• Customization: Profile drawing supported

• Production Efficiency: High output capacity

• Space Saving Design: Two profiles in one machine

• Cost Efficiency: Reduced equipment investment

• Installation: Easy on-site installation

• Application Industry: Steel structure & construction

Additional Features

The electric shear cutting system ensures fast response and clean cutting edges, minimizing material waste. The double layer structure allows quick profile switching without changing rollers, making it ideal for manufacturers handling multiple roofing panel orders.

Application Scenarios

Suitable for industrial plants, warehouses, workshops, commercial buildings, residential houses, and steel structure roofing and wall panel projects.