### Ball Mill Parameter Selection – Power Rotate Speed Steel

Aug 30, 2.2 rotation speed calculation of ball mill \ critical speed_ ... and the diameter and speed of the mill can be considered appropriately. formula (1-15) is an empirical formula for spherical diameter and feed size. ... the steel ball ratio in the mill can be calculated with reference to fig. 2-1 (suitable for cement mill, other mills can refer.Ball mill notes critical speed formula for ball mill in meters. the critical speed formula of ball mill is a horizontal cylindrical equipment, which is used in grinding under critical speed. it is expressed by the formula nc vdd. the critical speed is m, and the mill with diameter of.