Shot process device

A shot processing apparatus comprising:

• a projector configured to project shot to a workpiece;
• at least one set table configured to support the workpiece from below and be rotatable about an axis extending in a top-bottom direction;
• at least one retaining mechanism including a retainer provided above the at least one set table and a load receiving member supported on an upper end of the retainer so as to be rotatable on the retainer, the retainer being configured to be rotatable about the axis and movable along a direction of the axis;
• a rotational force driver configured to apply rotational force to the retainer through a transmission mechanism;
• and
• a lifting mechanism including a pressing holder capable of being lifted and lowered above the at least one retaining mechanism, the lifting mechanism being at a distance from the at least one retaining mechanism when the pressing holder is located above a reference height at which the pressing holder is in contact with the load receiving member, the lifting mechanism pressing the load receiving member to apply pressing force to the workpiece through the retainer when the pressing holder is located below the reference height.