The coating device according to the invention for a workpiece comprises a flow channel which has an opening for the workpiece, through which the workpiece protrudes at least partially into the interior of the flow channel during the coating. In addition, a spraying device is provided, which is arranged in such a way that coating material can be sprayed into the interior of the flow channel by means of the spraying device. Furthermore, the coating device comprises a flow generator, which is arranged and can be operated in such a way that the flow generator produces in the flow channel a flow (L1, L2) directed in the longitudinal direction (LA) of the flow channel.