Multilayer extruder screen packs consist of multiple wire meshes cut into customized shapes and dimensions, precisely assembled and spot-welded together to form integrated multi-layer filter assemblies.
Featuring exceptional structural strength and robust durability, multilayer screen packs enable stable and trouble-free extrusion processing. Arranged in optimized layered sequence, they effectively eliminate assembly errors during operation. These screen packs efficiently block foreign contaminants from penetrating molten materials throughout the entire extrusion process. Ideal for fine filtration applications, they deliver cleaner and purer extrusion output.
Extruder screen packs are primarily manufactured from premium SS304L, SS316 stainless steel meshes, with mesh sizes ranging from 4 mesh to 500 mesh and filtration precision up to 5 microns. Widely adopted in plastic and rubber extrusion industries, they feature diversified edge treatments including spot-welded edges and aluminum-framed spot-welded structures.
Specifications of Multilayer Extruder Screen Packs
- Layers: 2, 3, 4, 5 layers or customized multi-layer configurations
- Material: Stainless steel wire cloth (SS302, SS304, SS316, SS316L), copper wire cloth, galvanized wire mesh, aluminum alloy and nickel alloy materials
- Available Shapes: Round, oval, rectangular, elliptical
- Pack Diameter: 20 mm – 900 mm
- Frame & Edge Style: Framed, frameless and spot-welded edge designs
Spot Welded Packs
These multilayer extruder screen packs are welded together at accurate spot positions. They perform excellently in various filtration scenarios and are assembled in reasonable order to avoid operational errors. The quantity and placement of spot welds can be customized to meet your processing needs.
Framed Packs
Framed screen packs refer to spot-welded screen packs equipped with aluminum or stainless steel borders, which greatly improve the rigidity and structural strength of filters. They are suitable for high-pressure working conditions and prevent contamination from seeping around the breaker plate.
Applications
Multilayer extruder screen pack filters are widely used in ultra-fine extrusion processes. They are extensively adopted in petrochemical, plastic, rubber, chemical, pharmaceutical, brewing, beverage, aerospace industries, as well as water treatment plants, mechanical manufacturing and food processing fields.