... steel,cast iron, aluminum,copper and other sheet matal cutting. ◊cutting-edge inverter technology: 1.IGB welding power soft- ... voltage, over current, overheating, overload,plase failure, lack of air automatic protectionto ensure welding safety, durable and reliable; ... 240VCurrent Arrange:20-80ADuty Cycle:60%Efficiency:85%Class of Insulation:FCutting Thickness:1-30mmCase protection Degree:IP21Power ...