### the calculate the reduction ratio of ball mill

Calculate The Reduction Ratio Of Ball Mill 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

Peripheral speed = 85- 146 m/min. (280 – 480ft/m in) Reduction ratio = 2 – 20 depending on material. Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – 65% range. Bed porosity typically 40%. Height of bed measured in the same way as ball mills. Bulk density of rods = 6.25 tons/m3

Ball Mill Reduction Ratio Industry Crusher Mills Cone. Calculations the reduction ratios of rod and ball mills were 6465 and 115 which show high discrepancies from design values 23 and 75 for rod and ball mills. Grinding In Ball Mills Modeling And Process Control