... 20m/min 3.The yield strength:Q235Mpa C Purlin Roll Forming Machine 1.Components for the MachineThis C purline ... , feeding & guiding device , leveling device, punching device, main roll forming machine , hydraulic/electric cutting system, electric controlling system,stacker ... steel sheet,colored armor plate.2)Controlling by computer,PLC display,operation is easy,running is steady and reliable, endurable ...