ROTATING DRUM TYPE WORK WASHING APPARATUS

In a rotating drum (4) of a rotating drum type workpiece washing apparatus (1), a first cylindrical body section (21), in which a liquid impassable part (21a) that follows the circumferential orientation and does not allow a washing solution to pass and a liquid passing part (21b) that allows the washing solution to pass are formed, is provided. With the rotation of a rotating drum (4), workpiece (w) is transported in the direction of the line of the central axis along the inner circumferential surface part on the lower side inside the rotating drum by spiral workpiece transport fins (8) formed along the inner circumferential surface inside the rotating drum. During transport with the rotation of the rotating drum (4), the washing configuration for the workpiece is switched from immersion washing to flowing water washing and shower washing in that order. The workpiece can be washed in different configurations; therefore, the washing effect on the workpiece can be increased by the rotating drum with the spiral workpiece transport fins.