Does ball mill grinding only depend on the RPM?

- Sep 17, 2019-

The effect of ball milling depend on many factors, like materials of jars and balls, ball to powder weight ratio, ball size, grinding time, and the very important RPM. There is relationship between RPM and friction force. 

For an optimum grinding the ball size distribution and the numbers, and RPM in perse determines the falling height of the balls should be taken into account.