critical rpm of ball mill

ball mill operating speed - mechanical operations solved. The critical speed of ball mill is given by, where R radius of ball mill r radius of ball. For R 1000 mm and r 50 mm, n c 30.7 rpm.But the mill is operated at a speed of15 rpm.Therefore, the mill is operated at 100 x 15/30.7 48.86 % of critical speed

Latest News

news