Explore our flagship series of high-temperature, corrosion-resistant stainless steel filter elements engineered for continuous melt processing, plastic recycling, and fiber spinning operations.
In high-viscosity polymer extrusion, melt spinning, and continuous chemical resin synthesis, filtration integrity dictates end-product quality. As a world-class Weld Mesh Filter Manufacturer & Supplier, Pujiang HG Plastic Machinery delivers engineered wire cloth media designed to perform under extreme thermal stress and extreme hydraulic pressure differential ($\Delta P$).
Precision micro-capacitor discharge spot welding fuses multi-layer wire mesh packs seamlessly without thermal embrittlement, ensuring zero wire displacement under 30 MPa pressure differential.
Manufactured from high-grade AISI 304, 316L, and Hastelloy C-276 alloys to maintain dimensional tolerances during continuous processing of PET, PA66, PEEK, and PC melts.
Uniform aperture distribution guarantees predictable retention rates from 5 microns to 300 microns, drastically reducing gel formation and preventing die face plugging.
| Filter Element Category | Structural Configuration | Absolute Micron Rating ($\mu$m) | Max Pressure Differential ($\Delta P$) | Reusability & Cleaning Protocol |
|---|---|---|---|---|
| Spot-Welded Pack Filter | Multi-layer woven wire mesh bonded by perimeter resistance welding | 15 $\mu$m – 250 $\mu$m | 25 – 30 MPa | High (Pyrolysis, Ultrasonic & TEG Wash) |
| Sintered Multilayer Mesh Discs | Diffusion-bonded SS 316L wire cloth with porous support layers | 3 $\mu$m – 100 $\mu$m | 35 – 40 MPa | Excellent (Multi-cycle thermal recovery) |
| Pleated Candle Cartridges | Corrugated cylindrical mesh/felt core with welded end caps | 5 $\mu$m – 150 $\mu$m | 20 – 25 MPa | Very High (Backflushing & chemical wash) |
| Rim-Bound Extruder Screens | Circular mesh discs encapsulated in aluminum, copper, or SS borders | 25 $\mu$m – 300 $\mu$m | 15 – 20 MPa | Single-use / Disposable or solvent washed |
Procuring industrial weld mesh filters requires balancing extreme mechanical precision with cost efficiency. Operating from Pujiang, Zhejiang—China's premier manufacturing corridor for plastic machinery and filtration components—Pujiang HG Plastic Machinery combines localized metallurgical clusters with rigorous ISO quality control.
Every batch of stainless steel wire cloth undergoes spectral alloy analysis, wire diameter tolerance verification, and tensile stress testing, accompanied by EN 10204 3.1 material certificates.
Our factory utilizes fully automated multi-head spot welding and CNC fiber laser cutting equipment, ensuring zero variance in outer diameter, rim alignment, and perimeter integrity.
With millions of filter discs and candle cartridges produced annually, we offer enterprise procurement buyers unprecedented lead time advantages and competitive factory-direct pricing.
The global polymer industry is undergoing a structural transition toward circular economy models, post-consumer recycled (PCR) plastics processing, and higher extrusion speeds. Weld mesh filter design is evolving to address complex contamination profiles.
Recycled polyolefins (rPP, rPE, rPET) contain non-melting contaminants, paper fibers, and aluminum specks. Engineered multi-layer weld mesh packs provide progressive depth entrapment, increasing screen continuous run-times by up to 300%.
By combining coarse backing weld mesh with ultra-fine square weave and dutch weave filter cloth via thermal vacuum sintering, media migration is completely eliminated under pulsating pressure conditions.
Advanced computational fluid dynamics (CFD) modeling has optimized wire diameter-to-open-area ratios, yielding lower initial pressure drops and minimizing shear degradation of temperature-sensitive polymers.
Weld mesh filters engineered by Pujiang HG Plastic Machinery serve critical roles across high-value polymer conversion industries worldwide.
In twin-screw compounding lines, single and multi-layer spot welded screen mesh packs remove un-melted pigment agglomerates, crosslinked gel specks, and raw material impurities before extrusion through pelletizing dies.
Ultra-thin capacitor and packaging films demand defect-free polymer melt. Stainless steel leaf disc filters and candle cartridges prevent micro-voids, pinholes, and film tears during high-ratio biaxial stretching.
Spunbond, meltblown, and continuous filament lines (PET, PA6, PP) utilize precision CPF candle filters to protect micro-scale spinneret holes from clogging, ensuring uniform Denier filament output.
Continuous polymer polymerization systems install heavy-duty multi-candle filter housings to purify crude polyolefin resins, removing catalyst remnants and high-molecular-weight gels prior to granulating.
Integrated into manual, hydraulic, or continuous plate screen changers for post-industrial and post-consumer agricultural film, bottle flake, and rigid plastic recycling machines.
We provide global engineering teams, OEM machinery manufacturers, and procurement leaders with flexible, specification-driven customization. Every filter element is tailored to exact hydraulic and mechanical drawing dimensions.
Available in circular discs, kidney shapes, oval packs, rectangular strips, and cylindrical candles. Edge finishes include spot-welded mesh borders, annealed aluminum rims, copper rims, or laser-sealed edges.
Select from premium grade AISI 304, 304L, 316, 316L stainless steel wire cloth, Nickel alloys, Hastelloy C-276, and Monel for extreme acidic or corrosive polymer environments.
Products undergo ultrasonic solvent cleaning, hot-air drying, and anti-corrosion VCI vacuum sealing, ensuring contamination-free delivery to European, American, and Asian production plants.
Explore additional specialized product lines manufactured by Pujiang HG Plastic Machinery, engineered for maximum operating efficiency and extended filter service life.
Detailed answers to critical engineering and procurement inquiries regarding weld mesh filters, polymer melt candle cartridges, alloy selection, and cleaning protocols.
