### how to calculate grinding media in ball mill

Calculate and Select Ball Mill Ball Size for Optimum Grinding. Calculation of top size grinding media AZZARONI's Formula If you calculate from Figure 5 assuming you wanttarget a P90 of 60 microns you get around 22 mm 1 inch as a ball size This is quite the difference OPTIMAL BALL DIAMETER IN A MILL GrindingOperationsDesign Preferred size of balls for ball mills