### reduction ratio of 20mm ball mill pasticceriamariuccia.it

The reduction ratio, R, in rod mills varies from 2 and 20 depending on the characteristics of the ore.The usual reduction ratio is about 8. According to Bond [4], the reduction ratio is a function of length and diameter of the mill. The optimum reduction ratio, R RO, can be written as REDUCTION RATIO FOR BALL MILLING Crusher Mills,