PURPOSE: To automate a series of operations of hot dipping so that the working efficiency thereof is greatly improved and that works are plated with good quality.

CONSTITUTION: A cage body 3 charged with the many works 2... are immersed by a first transporting machine 7 into a plating cell 6 where the works 2... are subjected to plating. This cage body 3 is supplied from the plating cell 6 to a vibrating machine 8 by a second transporting machine 11 and vibrations are applied to the cage body 3 by this vibrating machine 8, by which the unnecessary plating liquid, etc., sticking to the works 2... are removed. The works 2... in the cage body 3 are then supplied by the second transporting machine 11 to a cage body 43 mounted in a centrifugal separator 9. The cage body 43 is rotated by this centrifugal separator 9, by which the unnecessary plating liquid, etc., sticking to the works 2... are removed. The cage body 43 of the centrifugal separator 9 is inverted and the works 2... are supplied to a flux tank 13.