down pipe roll forming machine MATERIAL: (1) Suitable Coil Thickness:0.3mm (2) Suitable Raw Materials: Galvanized steel coil (3)Yield bearing stress: ≤235MPa (4)Coil width:about 150mm (5)Roll forming step:about 20 steps (6)The materail of the roller: GCr15 (7)Line speed:about 20 m/min (8)Voltage: 380V/50Hz MACHINE COMPONENTS: (1) Electric Un-coiler 1 set (2)Guiding device 1 set (3) Roll-Forming M/C1 set (4) Saw cutting machine1 set (5) PLC Control System 1 set (6) Product Rack (un-powered)1 set (7)Safty barrier system 1 set