Abstract: Disclosed is a device for hardening the coating of an object, particularly a vehicle body (12), said coating being made of a material that hardens under electromagnetic radiation, especially a UV lacquer or a thermally hardening lacquer. The inventive device comprises at least one emitter (46, 48a, 48b, 52a, 52b) that generates electromagnetic radiation, and a system (14, 16) which conveys the object (12) into the proximity of and away from the emitter (46, 48a, 48b, 52a, 52b). The spatial position of the at least one emitter (46, 48a, 48b, 52a, 52b) or a reflector (55) that is assigned thereto can be modified by means of a motor, thus allowing even objects (12) with highly uneven and three-dimensionally curved surfaces to be conveyed into the radiation range of the emitters (46, 48a, 48b, 52a, 52b) in such a way that the surfaces are evenly exposed to a radiation quantity and radiation intensity required for hardening.

Abstract: An apparatus and a method for the surface treatment of workpieces, in particular for the wet chemical pretreatment of workpieces to be painted, are described. The apparatus comprises at least one pretreatment zone operating with a water-containing treatment liquid and at least one drying device for drying treatment liquid adhering to the surfaces of the workpieces. In order to dry the treatment liquid quickly and with a high energy efficiency, the drying device comprises at least one microwave generator with which the treatment liquid is dried.