Driving device of this machine uses AC frequency control , adopts C02 gas shielded arc welding . H I T ... torch: 9 setsCNC transverse cutting torch:2 sets CNC control system: JF-CNC08CNesting software: FastCAM professional 1500 H beam ... conveyance: motor, decelerator, chain wheel, chainControl: imported AC frequency conversion speed regulation(attached PLC is of programmablecontrol)Speed regulation ...