Explore our core high-efficiency melt filter cartridges and customized SUS 304/316L wire mesh elements.
Understanding the fluid dynamic mechanics, alloy selection, and structural design of industrial wire mesh filters.
Industrial polymer filtration demands exceptional resistance to degradation, thermal stress, and chemical oxidation. As a leading wire mesh filter manufacturer, Pujiang HG Plastic Machinery utilizes premium grade AISI 304, 316L stainless steel, Hastelloy C-276, and Inconel alloys. Standard 316L features low carbon content (≤0.03%), mitigating intergranular corrosion during intense thermal cleaning cycles like TEG hydrolytic degradation or vacuum pyrolysis.
Our filtration media leverage specific weaving architectures tailored to process rheology:
• Plain Dutch Weave (PDW): High mechanical strength with dense compaction for fine surface filtration.
• Twilled Dutch Weave (TDW): Enables multi-layer depth filtration, retaining deformable gels without severe pressure spike ($\Delta P$).
• Multipor Sintered Mesh: Diffusion-bonded multi-layer wire mesh that eliminates pore migration under continuous 30 MPa differential pressure.
In high-viscosity polymer melts (viscosity ranging from 100 to 10,000 Pa·s), particulate contaminants are not merely rigid solids; they frequently present as soft, deformable gels. Our customized candle filters and leaf discs engineered with multi-grade sintered metal fiber felts capture gels through gradient depth filtration, minimizing shear-induced breakdown and extending on-stream operational lifespan by up to 35%.
| Filter Media Type | Absolute Rating (μm) | Porosity (%) | Max Temp (°C) | Primary Industrial Application |
|---|---|---|---|---|
| 5-Layer Sintered Wire Mesh | 1 to 100 μm | 35% - 50% | 600 °C | BOPP/BOPET Film, Plastic Extrusion |
| Sintered Stainless Steel Fiber Felt | 3 to 60 μm | 65% - 85% | 480 °C | CPF Continuous Polymer Melt Spinning (PET/PA6) |
| Twilled Dutch Woven Wire Cloth | 10 to 250 μm | 30% - 45% | 400 °C | Recycling Extruder Screen Changers |
| Hastelloy C-276 Porous Mesh | 5 to 50 μm | 40% - 60% | 815 °C | Corrosive Petrochemical & Acidic Catalyst Filtration |
Decades of practical expertise catering to critical manufacturing verticals around the globe.
In high-speed filament yarn extrusion (POY, FDY, BCF) and nonwoven spunbond lines, melt purity directly influences spinneret clogging and fiber breakage rates. Our CPF candle filter cartridges utilize high-porosity sintered metal fibers that maintain a consistent velocity profile, drastically eliminating melt dead zones and thermal degradation.
Ultra-thin packaging and optical-grade electronic films demand optical clarity free of micro-pinholes or carbon specks. HG win-series leaf disc filters provide an optimized drainage hub design, preventing screen deformation under heavy differential pressure and ensuring ultra-smooth polymer throughput.
Post-consumer and post-industrial plastic recycling (PP, PE, PET flakes) carries severe contaminant loads including aluminum, paper paperboard residues, and degraded cross-linked gels. We supply high-durability continuous belt screen filters and multi-layer woven extruder screens that withstand extreme mechanical wear while maintaining low replacement frequency.
Leveraging state-of-the-art automation and localized Zhejiang manufacturing clusters to yield unmatched efficiency.
Our Pujiang manufacturing base integrates multi-axis robotic laser welding equipment, guaranteeing zero contamination from traditional flux welding. Every longitudinal and end-cap seam undergoes rigorous non-destructive structural integrity inspections.
Quality assurance is embedded in every phase. From material spectral analysis (PMI testing) to bubble-point pore diameter testing according to ISO 4003 standards, we verify structural integrity, permeability, and burst pressure parameters prior to shipment.
By vertically controlling wire drawing, precision mesh weaving, sintering, and machining under one roof, Pujiang HG Plastic Machinery provides global partners direct factory pricing, cutting procurement costs by 20% to 40% without compromising on European or American engineering standards.
Pioneering futuristic advances in micro-filtration to satisfy zero-emission and ultra-pure processing standards.
Comprehensive engineering support, certification compliance, and OEM/ODM custom services for international buyers.
All raw stainless steel wires, meshes, and finished filter elements adhere to stringent international standards, including ISO 9001:2015 quality management systems, EU REACH, RoHS environmental directives, and optional ASME code pressure vessel compatibility.
Whether you require retrofitting an existing European filter housing or developing a proprietary leaf disc geometry for a custom extrusion line, our technical design office provides 2D/3D CAD models and FEA simulation support within 48 hours, with physical samples delivered in 7 days.
We serve industrial customers across North America, Europe, Southeast Asia, and the Middle East, offering customs clearance documentation, specialized export packaging (vacuum sealed with anti-rust oil wrap), and local technical consulting services.
Expert technical answers to common questions asked by procurement managers and process engineers.
Woven wire mesh features a surface-oriented geometric aperture structure that provides precise particle size cut-offs and high mechanical strength, making it easy to clean. Sintered metal fiber felt consists of non-woven 3D micro-metal fibers providing high dirt-holding capacity (up to 2-3 times that of mesh) and exceptional porosity (65-85%). Sintered fiber felt is ideal for continuous melt spinning lines requiring low pressure drop ($\Delta P$) over prolonged operating cycles.
Selection depends on end-product dimensions and spinneret/die gap sizes. As a rule of thumb, the filter's absolute rating should be 1/3 to 1/5 of the spinneret capillary diameter or the final film thickness to prevent clogging. For instance, in 15-micron BOPP film lines, a 5-micron or 10-micron absolute rated leaf disc or candle filter element is typically recommended.
Reusable stainless steel filter cartridges (SUS 304/316L) can be cleaned using Triethylene Glycol (TEG) boiling systems to dissolve polyester/polyamide polymers, followed by high-pressure water jetting, ultrasonic bath cleaning, and final drying. Vacuum pyrolysis ovens operating under controlled temperature (400°C - 450°C) can also burn off organic contaminants safely without causing grain boundary carbide precipitation in the alloy.
Yes. We specialize in ODM/OEM customization. Our engineering team can work directly from your engineering CAD drawings or reverse-engineer from sample filter elements to match exact fitting threads (e.g., NPT, M24, bayonet connections), flange geometries, and dimensional lengths.
Explore more specialized candle cartridges and high-viscosity melt filter elements.
