The crawler shot blasting machine is suitable for surface cleaning of various parts. All kinds of metal casting surface sticking sand cleaning, ferrous metal parts surface rust removal, stamping surface burr and burr blunt, surface treatment of forgings and heat-treated workpieces, spring surface oxide skin cleaning and surface grain refinement, etc. It can be achieved by the shot blasting process of this series of equipment. Its application range is wide, mainly in foundry, heat treatment plant, motor factory, machine tool factory, bicycle parts factory, power machine factory, auto parts factory, motorcycle accessories factory, non-ferrous metal die-casting factory, etc. The workpiece after shot blasting can obtain good material quality, and can also become the front process of blackening, bluing, passivation and other processes on the surface of metal parts, and can also provide a good base surface for electroplating, paint and other finishing. . The workpiece can be reduced in tensile stress after being shot blasted by this machine, and the surface grains can be refined at the same time, so that the surface of the workpiece can be increased and its service life can be increased. The shot blasting machine has little noise and less dust, and has a good production rate. At the same time, the steel shot can be automatically recycled to reduce material loss and cost. It is an ideal surface treatment equipment for modern enterprises.