This three layer roll forming machine is a versatile industrial equipment widely used in the steel construction industry to fabricate multi-layer metal profiles, such as roofing, wall panels, or cladding systems. But each layer can't work on the same time, three layers roof designs share same driving motor and hydraulic motor, PLC system. This roll forming machine's work principle involves unwinding 0.3–0.8mm thick galvanized steel, aluminum, or color-coated sheets through decoilers. Each layer is fed into the machine individually, guided through alignment systems, and shaped by a series of precision forming rollers. After roll forming, roof sheets are cut to length by hydraulic system, allowing efficient, high-speed production of single or multi-layer components.