Continuous Screen Changers for Thermoplastics Filtration in a Wide Range of Extrusion Applications
High-Technology Corp. offers fully automatic, continuous screen changers that are used for polymer melt filtration in every segment of plastics processing including: blown film, blow molding, sheet and film extrusion, filaments & fibers, pipe and profile, pelletizing, BIAX (BOPP and BOPS). HITECH™ melt filters are designed to be used with all families of thermoplastics, including Polyethylene (LDPE, LLDPE and HDPE) Polystyrene (PS, HIPS), Polycarbonate, ABS, Acrylic, Flexible PVC, Nylon (PA 6, PA 66, PA 11) and Polyesters, as well as a wide range of engineering resins.
Below are some examples of the benefits derived from the use of HITECH™ screen changers in various extrusion applications.
FOAM
HITECH™ screen changers are installed world-wide in 4.5”/6.0” and 6.0”/8.0” tandem foam lines. READ MORE….
BLOWN FILM
When the bubble is lost in a blown film line due to a screen pack change on a conventional screen changer, a considerable amount of time and material is lost. READ MORE…
BIAX
When the film is lost from the chains of a biax line, it takes considerable time and wasted material to thread the line up again. READ MORE…
SHEET & FILM
The only moving element in a HITECH™ screen changer is the 120’ roll of filter screen. The yield of such a roll is equivalent to several hundred “screen packs” in a conventional, slide-plate type screen changer. READ MORE…
PIPE & PROFILE
With of the elimination of melt temperature and melt pressure variations caused by clogged screens, process parameters are kept within extremely tight tolerances. READ MORE…
CO-EXTRUSION
The co-ex process relies heavily on unchanging flow and pressure conditions. The operating mode of HITECH™ screen changers blends seamlessly into the co-extrusion process. READ MORE…
BLOW MOLDING
Because it has no moving parts, HITECH™ screen changers are compact and fit into the confined spaces of blow molding equipment. READ MORE…
FILAMENT/FIBERS
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. READ MORE…
PELLETIZING
HITECH™ — Also provides screen changers for the pelletizing process