... speed , mute rolling ball screw transmitting system more accurancy B- series configur with grar and rack transmitting , more fast, users ... control cabinet , easy to make maintenance , configure with more powerful AC drivers, big torque , strong function , Circuit design optimization , ... (4PCS) 0.8kW(6PCS) Motion Speed A series: 12-15m/min B series:25m/min RotatingSpeed of Spindle 0-24000rpm Engraving ...