Automtic self cleaning screen changer for polymer extrusion industry and filtration systems - CSC/BF-4F


MAAG backflush automatic self cleaning screen changers are based on the proven double-piston design which operates without any mechanical seals. The screen changers are equipped with four screen cavities. This design is used mainly in recycling applications for filtration systems. The automatic backflush function maximizes service life and increases the level of automation of the entire system. This reduces operating costs and creates enormous system availability — which are the main features of this series for the polymer extrusion industry. The sturdy construction guarantees reliable and leak-free filtration and backflush performance of polymer melts for many years.

Inquiry system 

Configure your own product according to your requirements and needs. If you are unsure of the configuration, provide us in the notes the necessary information about the existing sensor or product, even a competitor. We will be happy to help you find an alternative MAAG products. If your request is urgent, let us know. We will do our best to help you resolve this situation to your satisfaction as quickly as possible. If we have all the information, we are able to offer a model with minor differences.

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Configuration code

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Throughput rate [kg/h] 190 – 7800
Operation method kontinuierlich
Required heating output [kw] 7,5 – 152
Additional designs


Filter surface [cm²] 68 – 2828
  Number of sieve cavities 4
Screen diameter/length 46 mm to 300 mm
Filtration area 68 cm2 to 2,828 cm2
Mounting Compact mounting dimensions, all positions possible
Technology Proven sealless double-piston design




Electric, liquid, or steam heating
High-pressure version
High-temperature version
Coated flow channels
  Stainless steel design


Connection adapters
Support carriages
Breaker Plates
Protective devices
Maax® BF control system