The invention relates to a device (1) for coating workpieces, comprising a belt conveyor (2) drivable in rotation for transporting workpieces (13) to be coated, at least one paint spraying robot (6) and at least one surface spraying machine (8), wherein the paint spraying robot (6) is set up to coat side surfaces (14) and/or top surfaces (15) of the workpiece (13) and the surface spraying machine (8) is set up to coat the top surfaces (15) and/or side surfaces (14) of the workpiece (13).