Continuous Screen Changer for Polymer Melt Filtration in Pipe & Profile Extrusion

CONSISTENT WALL THICKNESS

pipe profile extrusion continuous screen changer

  • With of the elimination of melt temperature and melt pressure variations caused by clogged screens, process parameters are kept within extremely tight tolerances. As a result, consistent wall thickness is maintained throughout months of non-stop operation.
  • There are no hot breaker plates to handle or dirty screen packs to change and clean.  Process disruptions associated with screen changes are eliminated. Accordingly, there is no day-to-day operator involvement in the operation or maintenance of the screen changer.

Hitech™ continuous polymer melt filters are ideally suited for use in pipe and profile extrusion lines. Using a continuous, 120’ roll of filter screen, PLC based screen feed controls continuously monitor process pressure and advance the screen at a rate that maintains perfectly uniform melt temperature and melt pressures for months of non-stop operation. With the elimination of pressure fluctuations, uniform wall thickness is automatically maintained for months at a time without operator attention.