Powder separator system for a powder coating system, powder coating system with such a powder separator system, and method for operating such a powder coating system

A powder separator system for a powder coating system (20) that can be operated either in a single-color operating mode or in a multi-color operating mode, the powder separator system comprising:

• a first powder separator based on filtration technology for the single-color operating mode of the powder coating system;
• and
• a second powder separator based on filtration technology for the multi-color operating mode of the powder coating system,
• wherein:
• the first powder separator has a first raw gas chamber with a first filter medium received therein and the second powder separator has a second raw gas chamber with a second filter medium received therein,
• the first raw gas chamber has a first raw gas inlet through which a powder-air mixture extracted or discharged from a coating booth of the powder coating system can be fed as raw gas to the first raw gas chamber in the single-color operating mode of the powder coating system,
• the second raw gas chamber has a second raw gas inlet through which a powder-air mixture extracted or discharged from a coating booth of the powder coating system can be fed as raw gas to the second raw gas chamber in the multi-color operating mode of the powder coating system, which powder-air mixture may have previously passed through a centrifugal separator,
• a common clean gas chamber is assigned to the two powder separators, and is in fluid communication both with the first raw gas chamber and the second raw gas chamber, and
• a common suction fan is assigned to the two powder separators, and is in fluid communication with the common clean gas chamber via a clean gas channel.