The 686/760 Double Layer Roll Forming Machine is engineered for manufacturers who need flexible production of two standard roofing profiles on a single machine. By combining two independent forming layers into one solid frame, this machine saves factory space, reduces investment cost, and improves production efficiency while maintaining high forming accuracy and reliable long-term operation.
Machine Type: Double layer roll forming machine
Profile Type: 686 & 760 metal roofing sheets
Forming Layers: Upper and lower independent forming layers
Raw Material: PPGI, GI, color steel, galvanized steel
Material Thickness: 0.3–0.8 mm
Effective Width: 686 mm / 760 mm
Forming Speed: 10–20 m/min
Roller Stations: 14–18 stations per layer
Roller Material: High precision 45# steel, CNC machined
Shaft Diameter: 70–80 mm
Shaft Material: Solid forged steel
Frame Structure: Heavy-duty welded steel frame
Drive System: Chain drive transmission
Main Motor Power: 7.5–11 kW
Cutting System: Hydraulic or electric cutting optional
Cutting Blade Material: Cr12 heat treated steel
Cutting Accuracy: ±1 mm
Control System: PLC automatic control
Operation Interface: Touch screen HMI
Length Measurement: Encoder automatic control
Profile Switching: Manual or electric switching
Production Mode: Fully automatic continuous production
Electrical Components: International brand components
Voltage Standard: 380V / 50Hz / 3 Phase (customizable)
Noise Level: Low operating noise
Surface Quality: Smooth and scratch-free finished sheets
Safety System: Emergency stop & safety protection
Maintenance Requirement: Low maintenance cost
Machine Color: Blue / customizable
Brand: TOPPO Machinery
Certification: CE / ISO
Service Life: Long-term industrial use
Customization: Profile drawings fully 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
The 686/760 double layer configuration allows quick switching between two popular roofing profiles without changing rollers, significantly reducing downtime. Precision rollers and PLC control ensure consistent dimensions, clean cutting edges, and high-quality finished roofing sheets.
Widely used in industrial plants, warehouses, workshops, commercial buildings, residential housing, and steel structure roofing and wall panel construction projects.



