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July 1, 1999

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Product News - Automatic Melt Filtration System Suitable For Long Production Runs

Automatic Melt Filtration System Suitable For Long Production Runs

The RSFgenius is a fully automatic rotary melt filtration system from Gneuss that is said to meet demands for high quality as well as 24-hour production runs. It is suitable for all plastic materials, including such critical materials as rigid polyvinyl chloride or nylon 6/6.

Features cited by Gneuss include:

  • Complete encapsulation: melt and all parts that come into contact with the melt do not come into contact with the air.

  • Continuous and process-constant mode of operation: the constant pressure across the filtration system is ± 2 bar.

  • Absolute product consistency even during screen changes: there are no dimensional or tolerance variations and no dirt or degraded particles.

  • Multiple screen re-use due to a high-pressure segment back-flushing (20 to 200 times, down to 6 µm, with a melt loss of 0.05 to 0.5%). The screen change cycles range between two and 16 weeks in a four-shift operation.

The systems are also said to provide a high filtration rate. Because of the high-pressure segment back-flushing and the long life of the screenpacks, a continuous, quick screen change (filter disk rotation) makes it possible to remove a high quantity of dirt particles, without impairing the process and without operator attention. At the same time, this is said to guarantee a constant pressure level.

The smallest screen changer in the series, the RSFgenius 90, offers a filtration rate of approx. 0.3 m/hr. The largest size, the RSFgenius 300, offers 1.6 m/hr, which equals approximately 40 m/day.

So, this screen changer type has a screen surface capacity that Gneuss says far exceeds that of other screen changers. Please contact the company directly for pricing information (Use our Key Contact Directory).

Gneuss Inc.


Matthews, NC

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