Standard Ball Mill Specification

Coal mill ball material specifications. Maximizing Wear Resistance Of Balls For Grinding Of Coal. Sep 10 2007Four ball mills 42 m in diameter are fed with crushed coal with maximum size of 25 mm and up to 20 humidity to deliver the material ground to sizes less than 0075 m Each ball mill is fed at a rate of 70 th and operates 24 h a day .