PURPOSE: To provide a processing device capable of efficiently cleaning a machined article even when fine chips are dispersed and suspended in the cleaning liquid by cleaning the machined article to generate fine chips, such as one made of brass in the aqueous cleaning liquid.

CONSTITUTION: Tracks 14, 24 of a cylindrical container 21 which stores the cleaning liquid and is torsionally vibrated and an inner cylindrical container 11 inside thereof are transferred to clean a valve parts V, and the position of the valve parts V is arranged by a position control part 31 which is in the higher position than the level of the cleaning liquid, and the chips P are filtered by a chip filter in a jet cleaning part 41. After the part is jet cleaned with the pure cleaning liquid where the oil content is removed by an oil skimmer 105, the cleaning liquid is centrifugally removed by a cleaning liquid separating device 80.