the input power supply: ac 220 V voltage, power 1 KW.use air pressure: 3-8 MPA.work way: pneumatic hydraulic add stepping motor.suitable for lu: su membrane width: less than 500 MM. broken blade cut total 530 MM width, import SKD11 materials, hardness 60 degrees, but many times the grinding.Article points blade: high quality razor piece, durable, easy to change.feed; Double into three-phase 110 V, 800 W stepping motor feeding, send length and accurate.