The tumble blast machines with steel belt conveyor are employed for the surface treatment of batches of parts, loaded manually or automatically by means of a hydraulic skip loader.

The belt conveyor is made of wear-proof steel sections. Its rotation makes the parts tumbling, and by this movement the whole surfaces of the parts are exposed to the shots thrown by the turbines.

The offloading of the parts is obtained by the rotation of the belt conveyor in the opposite sense. Parts can fall directly into the empty container or through an offloading belt or vibrating conveyor.

The loading capacity can vary from 200 to 3000 kilos in weight.