Q38/48/Q58 series catenary through the shot blasting machine with the chain movement mode, can be divided into continuous type, step type, accumulation type. This machine is suitable for surface cleaning and shot blasting strengthening of many kinds and large quantities of cast iron parts, forgings and steel structural parts, such as engine cylinder block cover and motor shell. The cleaning effect of wheel hub and cylinder is especially good. It is the ideal choice for automobile, tractor, diesel engine, motor, valve and other industries.