Rotary filtration system designed for highly contaminated materials

2024
  • Fully-automatic and backflushing model
  • Synchronization of drive and back-flushing mechanism enables system to cope with higher contamination rates
  • Systems now running successfully in recycling applications, including two in South America

The new filtration system RSFgenius M from company Gneuss is designed for highly contaminated materials such as in recycling processes. The fully-automatic and backflushing model has been the choice for many processors when looking for high quality filtration, materials with high contamination levels and/or thermally-sensitive melts. Gneuss has been manufacturing process and pressure constant filtration systems and screen changers for more than 30 years.

 

Gneuss rotary melt filtration System RSFgenius M (source: Gneuss)

Gneuss rotary melt filtration System RSFgenius M (source: Gneuss)

Synchronization of drive and back-flushing mechanism enables system to cope with higher contamination rates

The RSFgenius M model can cope with even higher contamination rates due to the synchronization of the drive and back-flushing mechanism. This further optimizes the self-cleaning technology resulting in an increase of screen capacity as well as a reduction of the quantity of material lost through backflushing.

Systems now running successfully in recycling applications, including two in South America

At the company Brandt in Brazil an RSFgenius M 150 exchanged a slide plate screen changer on a 380 kg/h repelletizing line. This extruder processes 100 percent PP and PE reclaim into pellets for injection molding.
Before the RSFgenius M was installed, the line was not able to handle all available materials in order to “minimize” the disruptions caused by frequent screen changes. With the fully-automatic RSFgenius M all incoming materials are now being processed, and with no disruptions for screen changes the overall line output has been increased by approx. 1000 kg/day. At the same time, due to finer screens the end product quality has been increased.

At the company Reteplast in Argentina an RSFgenius M 150 replaced a slide plate screen changer on a 400 kg/h repelletizing extruder. Here, 100 percent reclaim, mainly PP, ABS and PE, is processed into pellets, also for injection molding applications. In the past the material had to be washed before the extrusion process in order to separate paper contamination. With the RSFgenius M this extra step is not necessary any more. The melt is now automatically filtered to 250 microns. The system automatically backflushes the screens 350-500 times, depending on the specific material. The material losses through backflushing are considerably lower than the material losses caused by more than 200 screen changes per day before with the slide plate screen changer.

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