Abstract: A method and system for cleaning workpieces with a liquid solvent in a treatment chamber which is connected into a drying gas circuit for the purpose of drying the workpieces. The drying gas circuit includes in series one after the other a ventilator, a condenser, a heating device and an adsorber containing activated carbon. The circuit is operated such that during a drying phase the condenser is cooled, the heating device switched on and the activated carbon regenerated by the hot circulating air whereupon, during an adsorption phase with the condenser switched on and the heating device switched off, the remaining solvent vapor is withdrawn from the circulating drying air by the activated carbon.

Abstract: The same baskets are used to dip successive batches of parts into a path of cleaning fluid or the like, and between dips the baskets are raised to a position in which rails on which the parts are held in the baskets connect with intermediate rail pieces to form a continuous track so that the contents of each basket can be advanced to the next basket (or to the unloading station in the case of the last basket) while a new batch of parts is loaded into the first basket. The transfer operation is performed by a rake mechanism. The advantage is obtained that when the baths of cleaning fluid are at different temperatures, heat is not wasted in warming up and cooling the baskets and, furthermore, cleaning fluid is not lost by being carried away by baskets moving through the system.