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Extruder Screen Filter Types

Single Screen Filters
They are predominantly used in the plastic reclamation industry, often with a Dutch Weave filter used in conjunction with a plain weave support filter.
These are also used in the extruded profiles and blown film industries where the contamination of the raw material is less and there is often lower pressure within the extruder head.

Spot Welded Packs
These are excellent for use in any field where a specific graduated filtration is required.
Another advantage is that it stops single screen filters being placed into the extruder incorrectly. For example a pack consisting of three meshes could consist of a 10mesh / 20mesh / 10mesh; meaning that whichever way the wire mesh filter is placed into the extruder head, it will work correctly.

Rim Packs
These are spot-welded packs that have an Aluminium or Stainless steel rim added to them to give the wire mesh filter extra rigidity and strength.
These are excellent for use where the extruder screen filter is operating at high pressures or if there is a danger of contamination getting around the edge of the breaker plate.


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