1. Working principle:
The ball millhas a rotating cylinder, and the cylinder contains a lot of grinding balls (generally about 50% of the total volume of the cylinder). When the ball mill starts to rotate the cylinder at a certain speed, the grinding ball sticks to the inner wall of the ball mill cylinder due to the centrifugal force and rotates with the cylinder, and is brought to a certain height and then falls freely. When falling, the grinding ball crushes the material in the cylinder.

Also, the grinding action between the grinding ball and the inner wall, and the collision among the grinding balls finally crush materials inside the ball mill.