Shot processing apparatus

A shot processing apparatus, comprising:

• a work set jig including a base member, the base member includes an upper and lower pair of cross members arranged facing each other and a vertical member connecting the upper and lower pair of cross members together, the work set jig being configured to enable a workpiece to be set between the upper and lower pair of cross members of the base member;
• a hanger transport device that, with the work set jig in a hanging state, is movable along a guide path in the shot processing apparatus and is also stoppable;
• a projection machine disposed at a lateral side of a transport path along which a workpiece, set at the base member, is transported by movement of the hanger transport device, the projection machine being configured to project projection media at the workpiece set at the base member inside a projection chamber into which the workpiece is conveyed;
• a projection positioning unit configured to position the work set jig at a stopping position in the projection chamber;
• and
• a clamp unit configured to fix a workpiece between the upper and lower pair of cross members in a state in which the projection positioning unit is positioning the work set jig at the stopping position in the projection chamber.