... barrel body rotates and then produces centrifugal force, at this time , the steel ball is carried to some height and fallsto ... up of feeding part, discharging part, gyre part, transmissionpart, (decelerator, small transmission gear, generator, electrical control) andso on. The hollow axis ... .074-0.48-48280502400×30002123≤250.074-0.47-5024554 High quality ball mill