* Simple and reliable controlling procedure,low malfunction rate,easy to maintain. * Using compressed air which guarantees safe and reliable operation. * Built-in overheat protection,over-voltage protection,under voltage pprotection and lack of compressed air pressure protection. * Adjustable output current to satisfy the cutting demands of various materials and thickness of working plates. * Fast cutting speed,smooth incision,no deformation and high utilization rate of sheet materials. * Apply for vehicles,shipbuilding,boiler,chemical,food,medicine,machinery processing kitchen environment etc.