### calculation of maximum ball size in mm for ball mill

Feeding 15mm to a ball mill this size is not typical - much larger ball mills (21 or 7.0m diameter) typically get 12-16mm feed (from what I have seen in my experience) With regards to 3.5- 4 media, typically for Ball mills of this size (16), max size of ball used should be around the 50-60mm. Commercial ball sizes 10 150 mm Number, size and mass of each ball size depends on mill load and whether or not the media is being added as the initial charge. For the initial chargin of a mill, Coghill and DeVaney (1937) defined the ball size as a function of the top size of the feed, i.e., dV 0.40 KF dB ball size (cm) F ...