The PGKF filter system was developed for large agricultural companies. It extracts dust and skins. This unit consists of several extremely quiet extraction fans and compressed air filters that are cleaned automatically using compressed air. This ensures optimum suction force is maintained. The capacity can be adjusted variably and is automatically configured to suit your requirements. A special chain is located in the lower section of this system. The chain ensures that the extracted waste is taken to one point where it is deposited into a waste container or a compactor. The filtered air is clean and can be fed back into the room. This prevents heat from being lost and saves energy. Several models of the PGKF chain filter are available.