Continuous Screen Changer Filament/Fiber Extrusion

screen changer filament fiber polymer melt extrusion

With of the elimination of melt temperature and melt pressure variations caused by clogged screens in other systems, the fiber/filament gauge variations are kept within extremely tight tolerances with HITECH filters.

  • Installed immediately after the extruder,  the HITECH screen changer will function as a central filter, thereby ensuring significantly longer stand times of the down stream spinnerets, in some cases as much as a factor of  8 – 10.
  • When processing low denier fibers/filaments, or very narrow diameter monofilaments, maintaining gauge accuracy is critical.  In a HITECH screen changer, this is achieved via the precisely controlled, incremental rate of screen advancement. The extruder head pressure and melt flow rates remain uniform during long, uninterrupted production runs.
  • HITECH filters allow for quick and efficient change-over at times of material recipe changes, with minimal down time.