FC Bond Grinding Test Mill Sepor30cm x 30cm ball mill used for FC Bond method of grindability testing Operates at 70 RPM automatic revolution counter synchronous motor smooth operating electric clutch Includes ball charge **-price of bond ball mill-**,Calculate and Select Ball Mill Ball Size for Optimum GrindingHere is your Ball Mill Design/Sizing Procedure Calculation of top size grinding media Fred C Bond Calculation of top size grinding media AZZARONI's Formula I attach Fred Bond's first empirical equation for sizing grinding balls for ball mills as well as a few other links to good related articles on the topic …… Get more