The Polymer Melt Filter Element 220×500 is a high-performance pleated candle filter cartridge engineered for polymer melt filtration in chemical fiber, plastic extrusion, film production, and recycling applications. This large-diameter element delivers high filtration area, excellent dirt-holding capacity, and stable performance under extreme temperature and pressure.
Manufactured from high-quality 304 or 316L stainless steel woven mesh or sintered metal fiber media, the 220×500 element is produced through precision pleating, spot welding, and pressing processes. Its outside-in flow configuration traps solid impurities—such as gels, carbonized particles, metal oxides, and undispersed additives—on the filter surface while clean polymer melt passes through the interior core.
| Outer diameter | 220 mm |
| Height | 500 mm |
| Maximum Working Pressure | 30~90 Mpa |
| Filter layer | Stainless steel mesh |
| Filtration rate | Customized |
| Customized | Available |
| Origin | Henan, China |
Note: Exact parameters depend on the specific media grade, layer count, and application requirements. Huahang Filter’s engineering team can design the optimal specification for each customer’s unique polymer type, throughput, and cleanliness targets.
The custom polymer melt filter element is engineered for critical polymer processing applications requiring absolute filtration, thermal stability, and long service life.
Primary Applications Include:
Fiber & Filament Spinning: Melt filtration prior to spinnerets for nylon , polyester , polypropylene , and other specialty fibers.
Sheet, Film, and Blown Film Extrusion: Protecting dies, improving clarity, and preventing defects in packaging films, agricultural films, and industrial sheets.
Compounding & Masterbatch Production: Removing gels, carbonized particles, and filler agglomerates to ensure uniform dispersion and product quality.
Precision Injection Molding: Ultra-clean melt for medical components, electronic parts, and high-quality consumer goods.
Hot Melt Adhesives: Filtration of molten adhesives to prevent nozzle clogging and ensure consistent application.
Recycling & Reprocessing: Removing contaminants from post-consumer and post-industrial polymer streams.
At Huahang Filter, we combine advanced material science with precision manufacturing to create filtration components that perform reliably under the combined assault of high temperature, high pressure, and aggressive chemistry. Our polymer melt filters are built not as commodities, but as integral, high-reliability components of your production line. Operating from our modern 26,000㎡ ISO-certified facility, we serve clients in over 120 countries, with exports accounting for more than 80% of our business.
Factory‑Direct Custom Manufacturing: Every element is designed and produced in our ISO 9001 certified facility. No brand markups, no intermediary costs.
20+ Years of Filtration Engineering Expertise: Since 2003, Huahang has specialized in polymer melt filters, wire mesh filtration, and high‑temperature applications. Our engineers understand the unique challenges of polymer processing.
Wide Material and Mesh Selection: SS304 and SS316L as standard, with other alloys available. Various mesh counts and multi‑layer configurations to optimize for your specific polymer and contamination level.
Complete Customization with Low MOQ: Any diameter, any length, any micron rating , any interface type. No minimum order quantity barriers—from a single prototype to production quantities.
Cleanable and Reusable: The woven mesh construction supports thermal, ultrasonic, and solvent cleaning. Multiple cleaning cycles reduce long‑term consumables cost.
ISO 9001 Certified Quality: Raw material inspection, in‑process quality control, and final dimensional verification ensure consistent, reliable performance.
Huahang Filter supports full customization of the Polymer Melt Filter Element and other melt filtration products:
The melt filter element sits inside the extrusion line. The polymer melt is forced through the pleated media under pressure; solid impurities (carbonized particles, gels, filler agglomerates, metal oxides) are trapped on or within the media while clean melt passes downstream to the spinneret or die.
Two media architectures are offered:
The pleated geometry packs a large effective area into a compact 220×500 envelope, keeping pressure drop low even with high-viscosity melts.
Q: Is the polymer melt filter element cleanable and reusable?
A: Yes. All metal construction supports backwashing, thermal decomposition (burn‑off in a controlled furnace), and ultrasonic cleaning. The element can be reused many times, significantly reducing long‑term costs.
Q: Are polymer melt filters compatible with all extruders?
A: Most are compatible, but proper sizing and pressure drop considerations are necessary for each extruder type.
Q: How to select the right polymer melt filter element?
A: Consider polymer type, melt temperature, viscosity, filler content, and chemical resistance to choose the correct filter material and mesh.
Q: Can melt filters be used for filled or reinforced polymers?
A: Yes, but high filler content requires wear-resistant materials like sintered metal, Inconel, or ceramic filters.
Q: Can this melt filter handle high-viscosity polymer?
A: Yes. The pleated structure keeps pressure drop low and provides the large effective area needed for high-viscosity PET, PA, PP, and recycled melts.
