Why does the stone mill rotate?

There is a motor in it. The electric energy on the motor is converted into mechanical energy to produce rotation, and the stone mill can also produce rotation by manual or external pressure to help the material grind into powder. Stone mill is a kind of material pulverizer, which is mainly composed of casing, reducer, bearing and motor. It can use electric energy or other external forces to grind materials into powder, which is widely used in agriculture, chemical industry, mining and other industries.