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

Aug 30, forged steel balls; p=s=4.5-4.8t/m3 cast steel balls p=4.3-4.6t/m3; rolling steel balls p=6.0-6.8t/m3; steel segments p=4.3-4.6t/m3_-filling ratio of grinding medium, when wet grinding: lattice ball mill pi = 40% – 45%; overflow ball mill phi = 40%; rod mill phi =.Ball mill critical speed working principle . 20.06. if 75 percent of critical speed is considered desirable for efficient grinding in a 2.4 meter 8 foot diameter mill, then the same will be true for a 5.0 meter 15 foot diameter.