### bittosi ball mill

In general, for wet grinding, load the alumina grinding ball to 44% 51% of the ball mill volume can get the ideal grinding performance. Formula for the load of alumina grinding ball: M=π D 2 ÷4 L α 1 β ψ. M: Alumina grinding load, in tons π: Circumference ratio, 3.14 D: Ball mill diameter, in meters L: Ball mill length, in meters