### Calculate And Select Ball Mill Ball Size For Optimum Grinding

Aug 02, based on his work, this formula can be derived for ball diameter sizing and selection: dm = 6 (log dk) * d^0.5 where d m = the diameter of the single-sized balls in mm.d = the diameter of the largest chunks of ore in the mill feed in mm. dk = the p90 or fineness of the finished product in microns (um)with this the finished product is.