Explore our primary series of heavy-duty SUS304/316L wire mesh filter screens, candle filter cartridges, and granulating equipment.
In high-temperature, high-pressure polymer extrusion and continuous melt processing, stainless steel wire mesh filter screens serve as the critical line of defense against mechanical wear, degradation gels, and micro-contaminants.
Modern continuous melt screen changers demand ultra-consistent mesh weave density. Fluctuations in pore opening size cause irregular pressure drops (ΔP), leading to melt flow instabilities, polymer degradation, and premature extruder shut-downs. Precision-woven mesh elements ensure balanced differential pressure and stable thermal distribution.
In optical packaging film (BOPP, BOPET, BOPA) and synthetic fiber spinning (PET, PA6, PA66), sub-micron hard particles or semi-solid polymer gels create yarn breakage or film bubbles. Multi-layer sintered wire cloth and pleated candle filters provide progressive depth filtration to capture gel structures under high pressure.
The global surge in Post-Consumer Recycled (PCR) and Post-Industrial Recycled (PIR) plastic processing places extreme burdens on filtration screens. Contaminants such as paper fiber, aluminum specks, and cross-linked elastomers require high-strength, abrasion-resistant stainless steel wire mesh belts and leaf discs.
Selecting the optimal wire mesh filter screen requires matching alloy composition and weave geometry to specific operating temperatures, chemical corrosive agents, and melt viscosity.
| Filter Mesh Category | Material Grade | Micron Rating Range | Mechanical Characteristics | Primary Industrial Application |
|---|---|---|---|---|
| Plain Dutch Weave (PDW) | AISI 304 / 304L | 20μm – 250μm | Coarse warp wires combined with tight shute wires; high mechanical stability under unidirectional shear force. | Plastic recycling extruders, continuous melt screen changers, masterbatch compounding. |
| Twilled Dutch Weave (TDW) | AISI 316L / 316Ti | 5μm – 100μm | Double-layer wire weave permitting ultra-dense mesh pore structure; smooth surface and superior flow rates. | Polymer candle filters, high-viscosity chemical fiber melt spinning, resin refining. |
| Reverse Plain Dutch (RPDW) | SUS 304 / 316L | 40μm – 400μm | High-density warp wires engineered specifically for continuous auto-belt screen changers. High tensile strength. | Continuous ribbon screen changers for blow molding, sheet extrusion, and compounding. |
| Sintered Wire Mesh Cloth | 316L / Alloy 20 / Hastelloy | 1μm – 200μm | Multi-layer (3-5 layers) diffusion-bonded under high temperature vacuum; zero wire migration under high pressure. | CPF Candle Filter Elements, Leaf Disc filters for BOPP/BOPET film production lines. |
| 3D Sintered Metal Fiber Felt | 316L Stainless Steel | 3μm – 60μm | Non-woven three-dimensional metallic matrix boasting up to 85% high porosity and exceptional dirt holding capacity (DHC). | High-viscosity polymer melt filtration, spunbond nonwoven lines, critical fiber spinning. |
Standard SUS 304 offers excellent resistance for polyolefin processing (PP, PE). However, for fluoropolymers (PVDF, PTFE), recycled PET with acidic degradation products, or high-temperature engineering plastics (PEEK, PPS, PEI operating at >350°C), our factory utilizes low-carbon AISI 316L, 316Ti, or nickel-chromium alloys to eliminate intergranular corrosion and prevent thermal oxidation embrittlement.
Polymer Candle Filter Cartridges utilize precision longitudinal pleating to increase effective filtration area by 250% to 400% compared to smooth cylindrical elements. This dramatically reduces face velocity, lowers differential pressure build-up, extends on-stream operational lifespan, and reduces cycle replacement frequency for plant engineers.
Customized wire mesh filter screen configurations designed for specialized industrial production environments.
High-speed biaxially oriented film production lines require pristine polymer melt purity to prevent pinholes, tears, and optical haze. Our sintered leaf disc filters (hub-and-disc assembly) deliver uniform fluid flow distribution, minimal residence time, and zero dead zones, ensuring optical grade clarity for flexible food and electronic packaging film.
In polyester (PET) and nylon (PA6/PA66) filament, staple fiber, and spunbond nonwoven manufacturing, spinneret orifice clogging leads to costly line stoppages. Our high-viscosity polymer candle filter cartridges remove micro-gel blobs and solid particulates, ensuring uninterrupted spinning performance and consistent fiber denier uniformity.
Processing heavily contaminated agricultural film, post-consumer bottles, and rigid municipal plastic waste requires robust screen mesh filters. We supply heavy-duty spot-welded multi-layer mesh packs, continuous reverse Dutch weave filter belts, and automatic hydraulic screen changer elements capable of handling high dirt loads without wire rupture.
Pujiang HG Plastic Machinery Co., Ltd. continuously pushes the boundaries of metallurgical filtration engineering through R&D investment and process optimization.
Developing nano-structured sintered metal felt matrices capable of capturing sub-micron cross-linked gel structures without creating excessive pressure differentials.
Optimizing multi-layer sintered mesh structural rigidity to withstand repeated high-pressure hydraulic shock waves during automated backwash cycles, extending filter element service cycles up to 5x.
Applying ultra-thin fluoropolymer and ceramic hydrophobic/oleophobic plasma vapor depositions onto wire mesh surfaces to minimize polymer thermal sticking and carbon buildup during pyrolysis cleaning.
Integrating high-resolution optical vision AI inspection systems across automated wire weaving lines to detect microscopic warp/shute wire deviations and guarantee 100% pore size conformity.
Pujiang HG Plastic Machinery Co., Ltd. delivers comprehensive quality assurance, global logistics logistics management, and customized technical consulting.
All products undergo rigorous quality control compliant with ISO 9001:2015 quality management systems. Materials are certified to ASTM E2814 standard specifications for industrial wire cloth, with full EN 10204 3.1 Material Test Reports (MTR) verifying chemical alloy composition and tensile strength.
Our stainless steel wire mesh filter screens, candle filters, and leaf disc assemblies comply fully with EU RoHS, REACH, and FDA food contact material regulations (for food packaging extrusion lines), ensuring heavy metal concentrations (Pb, Cd, Hg, Cr VI) remain strictly within safe thresholds.
We offer end-to-end custom engineering based on client technical drawings or sample duplication. Fast-track production lines enable rapid prototype delivery within 7-10 days, supported by global express air and sea freight logistics serving over 80 countries worldwide.
Discover our specialized leaf disc filter geometries, high-viscosity melt candle elements, and complete pelletizing machinery.
Detailed answers to critical procurement, metallurgy, maintenance, and specification questions regarding wire mesh filter screens and polymer melt elements.
