... of decoiler, feeding & guiding device, main roll forming machine, hydraulic/electric cutting system, hydraulic/electric controlling system, stacker ... Electric Cutting – Stacking Technical parameter of metal roofing making machine ItemSpecification MaterialTypeColored coating steelThickness(mm)0.5-0.6Yield ... motor power(kw)4Total power(kw)9.5 high speed and high quality metal roof panel machine