### calculation of balls in a mill

2017 1 12 Calculations: The critical speed of ball mill is given by, where R = radius of ball mill; r = radius of ball For R = mm and r = 50 mm, n c = 307 rpm. Live Chat simple calculation in ball

### Ball Mill Parameter Selection & Calculation

2019 8 30 1 Calculation of ball mill capacity. The production capacity of the ball mill is determined by the amount of material required to be ground, and it must have a certain margin when designing and selecting. There are many factors affecting the production capacity of the ball mill, in addition to the nature of the material grain size, hardness, density, temperature and