### A Method to Determine the Ball Filling, in Miduk Copper

A Method to Determine the Ball Filling, in Miduk Copper Concentrator SAG Mill calculated via manufacture`s ball charge program. At the time of this research, mill ball charged, feed rate, and average moisture were 7 tons (ball size was 100 mm) per week, 720 t/h and 5%, respectively. Then, ball abrasion rate was calculated by Equations 4, 5 and 6. Total mill feed per week = 720*24*7*0.95