An extruder screen is a woven wire mesh filtration system welded or folded into specific shapes (round, oval, rectangular, etc.). It is placed before the breaker plate in a plastic or rubber extruder to remove contaminants (dirt, carbonized particles, undispersed pigments) from molten polymers.     

Dashang Wire Mesh supplies an extensive portfolio of filtration elements engineered to withstand high temperatures and high-pressure extrusion environments. All products are fully customizable strictly according to your technical drawings and precise dimensional requirements.

1. Single-Layer Disc Screens 

· Structure: One layer of high-purity woven wire mesh with raw cut or seamless aluminum frames.   

· Best For: Low-impurity, non-abrasive melts (e.g., virgin PVC pipes, standard profiles).

· Mesh Range: 8 – 20 mesh (standard) up to 635 mesh for specific lines.

· Dimensions: Typical Outer Diameter (OD) from 1″ to 16″. 

2. Multi-Layer Spot-Welded Filter Packs 

· Structure: 2–8 layers of graduated mesh spot-welded together. Combines coarse support mesh with fine filter mesh for stepwise contaminant capture.

· Best For: Medium to high-impurity processing (e.g., recycled plastic pelletizing, post-consumer PE/PP, rubber extrusion).

· Mesh Range: Versatile combinations of 20 / 40 / 60 / 100 / 150 mesh.

· Edge Type: Uniform spot welding prevents layer shifting or delamination under melt pressure.

3. Aluminum-Bound Frame Filters 

· Structure: Multi-layer mesh packs enclosed in a soft, dead-soft aluminum frame or 304 stainless steel edge wrapping.

· Best For: High-pressure environments and particle scouring (e.g., engineering plastics like PA, PC, POM).

· Mesh Range: Custom specifications up to 500 mesh or optimized Dutch woven mesh.

· Advantage: Provides a perfect mechanical seal against the breaker plate, eliminating melt bypass.

4. Oval, Rectangular & Special-Shaped Screens

· Structure: Single or multi-layer screens engineered into custom shapes (crescent, arc, oval, waist, or rectangle).

· Best For: Blown/cast film lines, masterbatch production, and continuous screen changers requiring large filtration areas and longer production cycles.

· Mesh Range: 20 – 150 mesh or custom combinations tailored to specific machine flow channels.

Strict Quality Standards & Traceability

As a trusted partner to industrial filter suppliers and machinery builders, we adhere to international quality benchmarks to ensure reliable, long-term extrusion performance:

· Material Compliance: Full ASTM A580 compliance utilizing premium 304, 304L, 316, and 316L stainless steel, or high-grade carbon steel.

· Weave & Inspection: Verified under ISO 9044 and ASTM E2016 standards for precise aperture tolerances and mesh counts.

· Surface Condition: 100% flat, clean, free of creases, rust, or mechanical damage.

· Weld Integrity: Smooth, uniform fusion with zero sharp burrs or loose welds.

· Dimensional Accuracy: Standard OD tolerance of ±0.3 mm (tighter tolerances available upon request).

· Documentation: Every shipment includes comprehensive chemical composition reports (heat numbers) and dimensional inspection records for complete lot traceability.

Supply Chain Flexibility & Production Capacity

We optimize our operations to support both high-volume wholesale distribution and specialized, low-volume trial orders:

· No MOQ Barrier: No minimum order quantity required for standard stock sizes or non-standard custom shapes.

· Massive Monthly Capacity: Capable of producing ≥200,000 single-layer discs and ≥50,000 multi-layer sets per month.

· Abundant Spot Inventory: Rapid dispatch available for common 14# to 200# meshes with ODs ranging from 1″ to 16″.

· Rapid Lead Times: Trial samples are ready in as fast as 7 calendar days; mass production orders are fulfilled within 15–20 calendar days from print approval.

· Long-Term Framework Agreements: We offer price-lock guarantees and dedicated inventory priority with scheduled split deliveries for annual contract partners.

· Industrial Packaging: Heavy-duty export protection using extension film, clear labeling, cardboard separation, and reinforced wooden boxes to prevent edge compression.

If you would like to evaluate our quality for your equipment or filter production lines, please let us know:

· Your required mesh sizes or layer configurations

· The exact outer dimensions (OD) and shapes

· Your preferred wire material (e.g., 304 or 316L Stainless Steel)

We can quickly provide custom technical drawings, factory-direct pricing structures, or arrange a batch of trial samples for your validation. 

Contact Us – Request a Quote or Technical Support  sales@dswirecloth.com