##### Mill Critical Speed Formula Derivation - Grinding ,

Know MoreThe formula to calculate critical speed is given below N c = 42305 /sqt(D-d) N c = critical speed of the mill D = mill diameter specified in meters d = diameter of the ball In practice Ball Mills are driven at a speed of 50-90% of the critical speed, the factor being influenced by economic consideration...

## critical speed of ball mill pdf - pochirajucoin

Know MoreCritical speed of the mill is rotational speed relative to speed at which centrifugal force just counters Get Price Cement Mill Notebook - Scribd May 28, 2012 , Cement Mill Notebook - Free download as PDF File (pdf), Text file , 32 Calculation of the Critical Mill Speed: G: weight of a grinding ball in kg...