#### Jyoti Ceramic Industries Pvt. Ltd.

To calculate the motor power required for a cylindrical type ball mill, the following formula can be applied : W = 0.04116 x D3 x L x n x (0.6d + 0.4d1) where : W = Required motor power in HP : D = Internal dia of the mill in mtr : L = Internal length of the mill in mtr : d = Specific gravity of grinding media : d1 = Specific gravity of substance