Continuous, step-, product release hanging catenary chain shot blasting machine for large-volume small parts of shot blasting. Workpiece can be run continuously with the hanging chain or running or stepping up the use of advanced product push catenary conveyor workpiece, the workpiece unloading and shot in Canada in the area were stopped, and fixed-point shot to achieve fixed handling processes, single hook lifting 50 ~ 2000kg, and high productivity, reliable operation, the cavity surface and the more complex parts such as engine cylinder head, motor shell and other clean-up effect is a plus. The automotive, tractor, diesel engine, motor, valves, etc. are ideal