Device for drying of workpieces, in particular of vehicle wheels, having a) a dryer housing which borders a dryer chamber and has at least one access (34; 88, 98) to the dryer chamber; b) a conveying system by means of which workpiece carriers loaded with workpieces can be conveyed through the dryer chamber; wherein c) a transfer apparatus is present, through which: ca) workpieces to be dried can be transferred to a workpiece carrier which is located in the dryer chamber; cb) dried workpieces can be removed from a workpiece carrier which is located in the dryer chamber; so that d) the workpiece carriers can be conveyed in circulation through the dryer chamber without leaving it; e) the dryer chamber comprises a preheating zone (22; 72) and a drying tunnel connected therewith, wherein the device is configured such that a temperature which is lower than the temperature in the drying tunnel prevails in the preheating zone (22; 72), and the preheating zone (22; 72) is accessible from outside via the at least one access (34; 88), characterized in that f) the drying tunnel is of a two-storey construction and comprises a first tunnel conveyor and a second tunnel conveyor for workpiece carriers, so that workpiece carriers loaded with workpieces can be guided in two storeys through the drying tunnel, wherein the tunnel conveyors (38, 40) are arranged vertically one above the other and workpiece carriers can be conveyed from the first tunnel conveyor to the second tunnel conveyor by means of a vertical conveyor (42; 90); g) a handover apparatus having a vertically movable conveying carriage is arranged in the dryer chamber, by means of which workpiece carriers can be conveyed out of the preheating zone into the drying tunnel and vice versa, and whose conveying carriage carries with it a first conveying support and a second conveying support which are arranged vertically one above the other, wherein the conveying carriage can be positioned such that the first conveying support can cooperate with the first tunnel conveyor and the second conveying support can cooperate with the second tunnel conveyor. a) a dryer housing which borders a dryer chamber and has at least one access (34; 88, 98) to the dryer chamber; b) a conveying system by means of which workpiece carriers loaded with workpieces can be conveyed through the dryer chamber; c) a transfer apparatus is present, through which: ca) workpieces to be dried can be transferred to a workpiece carrier which is located in the dryer chamber; cb) dried workpieces can be removed from a workpiece carrier which is located in the dryer chamber; so that ca) workpieces to be dried can be transferred to a workpiece carrier which is located in the dryer chamber; cb) dried workpieces can be removed from a workpiece carrier which is located in the dryer chamber; d) the workpiece carriers can be conveyed in circulation through the dryer chamber without leaving it; e) the dryer chamber comprises a preheating zone (22; 72) and a drying tunnel connected therewith, wherein the device is configured such that a temperature which is lower than the temperature in the drying tunnel prevails in the preheating zone (22; 72), and the preheating zone (22; 72) is accessible from outside via the at least one access (34; 88), f) the drying tunnel is of a two-storey construction and comprises a first tunnel conveyor and a second tunnel conveyor for workpiece carriers, so that workpiece carriers loaded with workpieces can be guided in two storeys through the drying tunnel, wherein the tunnel conveyors (38, 40) are arranged vertically one above the other and workpiece carriers can be conveyed from the first tunnel conveyor to the second tunnel conveyor by means of a vertical conveyor (42; 90); g) a handover apparatus having a vertically movable conveying carriage is arranged in the dryer chamber, by means of which workpiece carriers can be conveyed out of the preheating zone into the drying tunnel and vice versa, and whose conveying carriage carries with it a first conveying support and a second conveying support which are arranged vertically one above the other, wherein the conveying carriage can be positioned such that the first conveying support can cooperate with the first tunnel conveyor and the second conveying support can cooperate with the second tunnel conveyor.