### how to calcualte grinding effiency of millings

how to calcualte grinding effiency of millings. 2020 9 3 Mar 08, 2013 calculation of ball mill grinding efficiency. dear experts . please tell me how to calculate the grinding efficiency of a closed ckt open ckt ball mill. in literatures it is written that the grinding efficiency of ball mill is very less less than 10%. please expalin in a n excel sheet to calcualte