The close loop conveyor system of close loop hanger type shot blasting machine comprises chain driven trolleys with fixtures for holding hangers. These hangers are used for placing the components to be shot blasted. The hangers carrying the components are passed into the blast chamber, where these are shot blasted by a chain driven mechanism. Once all components are completed blasted and the blast cleaning cycle is over, hangers are taken out and shot blasted components are unloaded. Homogeneous finish is achieved by the blast wheels inside the blast chamber of close loop hanger type shot blasting machine.