The ball mill is mainly composed of feeding, charging, bearing, drum, transmission, discharging parts and main motor. The drum is driven by the motor through the transmission and deceleration of gear pair to rotate in appropriate rotary speed. The medium for ore grinding is lifted to a definite height under the action of centrifugal force, friction and gravity and then dropped down in throwing up or falling state.

 

The materials within the drum are crushed under impact of medium. Meanwhile, the materials are ground under grinding stripping action due to rolling or sliding of medium. The materials are discharged through discharge hole after being ground. The mill may be provided with air clutch, slow driving/jacking/jet lubrication devices as required.