ball mill rod mill cement pdf
Ball mill and rod mill are suitable for different materials. 1. Selection by material's hardness. Ball mill has a strong adaptation of material, and it is suitable for grinding hard materials, such as slag, iron ore, copper ore, etc. Rod mill is suitable for grinding brittle material, such as rare metals. 2Ball mill with Central Drive Mill length Mil l diame te r M il l di amet er 5 3 2 3 2