### CALCULATION OF MAXIMUM BALL SIZE FOR BALL MILL GRINDING

Jun 25, 2018· %age of mill in critical speed = 70%. Specific gravity of the feed = 2.2 gm/cm3. Mill effective diameter = 2.23 m . 335 is a constant used for dry grinding with steel balls in the mill. Actual size of media is taken is lower than the calculated value. It is around 80 to 90 mm.