Coating device with fluid-conducting rotary feed through for compressed air to spray heads

A coating device for applying a coating agent to the surface of a workpiece, the coating device comprising:

• a machine frame having a workpiece receptacle,
• a coating agent source and a compressed air source,
• a rotary unit which is rotatable in relation to the machine frame and has at least one pump and a plurality of spray units, the at least one pump on a suction side being connected to the coating agent source by a fluid-conducting rotary joint, and on a pressure side being connected to the plurality of spray units, and
• the rotary unit has a pneumatic valve device, and the plurality of spray units each have a compressed air controlled valve for controlling the delivery of coating agent, the pneumatic valve device on an intake air side is connected to the compressed air source at least by way of a fluid-conducting rotary feedthrough, and on an exhaust air side is connected to the compressed air controlled valves of the plurality of spray units.