Direct factory export of SUS 304/316 polymer candle filters, leaf disc elements, and extruded plastic mesh solutions.
In the contemporary globalized manufacturing domain, high-precision industrial filtration forms the technological backbone of continuous polymer synthesis, petrochemical refining, plastic extrusion, and chemical fiber spinning. As global industrial sectors push toward higher operational throughput, lower carbon footprints, and stringent quality thresholds, the demand for premium stainless steel metal mesh and engineered melt filter elements has reached unprecedented levels.
As a leading China Steel Metal Mesh Supplier & Exporter, Pujiang HG Plastic Machinery Co., Ltd. sits at the intersection of metallurgy science, precision weaving, and thermal processing innovation. The global market for polymer melt filtration is projected to grow at a Compound Annual Growth Rate (CAGR) of 6.8% over the next decade. Driven by the expansion of flexible packaging (BOPP, BOPET, BOPA), technical nonwovens, and post-consumer plastic recycling (PCR), industrial operators require filtration solutions that eliminate gel micro-particles, carbonaceous residues, and mechanical contaminants without inducing high differential pressure drops.
The operational longevity and mechanical integrity of industrial wire cloth depend strictly on material chemistry and structural weaving techniques. Pujiang HG Plastic Machinery utilizes premium austenitic stainless steel alloys sourced from certified global foundries.
Choosing the correct grade involves balancing chemical resistance against mechanical yield strength under cyclic thermal loads:
| Filter Structure Type | Filtration Accuracy (µm) | Max Operating Temp (°C) | Max Differential Pressure (MPa) | Primary Application Area |
|---|---|---|---|---|
| Sintered Wire Mesh Discs | 3 – 100 µm | 480 °C | 21.0 MPa | BOPP/BOPET Optical Film Extrusion |
| Pleated Polymer Candle Filters | 5 – 60 µm | 350 °C | 15.0 MPa | Synthetic Fiber Spinning (Nylon/Polyester) |
| Square Weave Extruder Mesh | 40 – 400 µm | 600 °C | 10.0 MPa | Recycled Plastic Pelletizing (PE/PP/ABS) |
| Multi-Layer Mesh Packs | 10 – 250 µm | 450 °C | 18.0 MPa | Sheet & Pipe Twin-Screw Extrusion |
Tailored filtration mechanics designed to optimize throughput and lower total cost of ownership (TCO) across key global sectors.
Ultra-smooth continuous polymer film production lines demand absolute void-free melt streams. Sintered leaf disc filters eliminate pinholes, gels, and fish-eyes. Our optimized hub geometry prevents dead-zones where polymer stagnation and thermal degradation usually occur.
Melt spinning lines for POY, FDY, and Spunbond nonwovens require cylindrical or pleated candle filters with massive surface area to volume ratios. Our pleated SUS 316L elements deliver up to 300% more filtration area compared to smooth cylinders, extending on-stream life dramatically.
Regranulating heavily contaminated PCR/PIR polymers (PE, PP, PS) puts severe mechanical strain on filtration screens. Our continuous belt wire mesh and heavy-duty rimmed mesh packs sustain high pressure differentials without distortion or rim bypass.
At Pujiang HG Plastic Machinery, quality is verified at every manufacturing stage through empirical testing standards:
As polymer processing moves toward higher sustainability targets, our R&D engineering division is pioneering next-generation mesh technologies:
Expert answers regarding wire mesh selection, cleaning protocols, and performance optimization.
Woven wire mesh consists of individual wires woven together (plain, twill, or dutch weave), offering high flexibility and cost efficiency, but individual wires may shift under high dynamic pressure. Sintered mesh bonds multiple layers of woven wire cloth under high vacuum and heat without solder. This creates a monolithic, structurally rigid pore geometry that prevents wire migration and handles differential pressures up to 21 MPa.
For standard non-corrosive polyolefins (like LDPE, LLDPE, HDPE, and PP) operating at moderate temperatures, SUS 304 provides an economical and reliable solution. However, if your melt process involves PET, PA66, fluoropolymers, or recycled resins releasing acidic degradation products (such as acetic acid or PVC volatiles), SUS 316L is mandatory due to its molybdenum content and low carbon structure which prevents intergranular chemical corrosion.
Yes! Unlike disposable fiberglass or paper filter cartridges, metallic candle filter elements designed by Pujiang HG are fully cleanable and reusable up to 10–20 operational cycles depending on maintenance rigor. Cleaning methods include vacuum pyrolysis burn-out, TEG (Triethylene Glycol) boiling baths, chemical acid/alkali flushing, and final high-frequency ultrasonic baths in cleanroom conditions.
To deliver precise OEM quotes, we require: (1) Target filtration rating in microns (µm); (2) Polymer type and operating viscosity (Pa·s); (3) Working temperature and max pressure differential; (4) Outer diameter (OD), inner diameter (ID), and height or flange dimensions; (5) Desired alloy grade (SUS 304/316/316L).
We utilize precision-engineered spot-welding and high-pressure aluminum, copper, or stainless steel rimming boundaries. The compressed metal rims ensure a gas-tight seal against the extruder breaker plate, eliminating polymer bypass along the outer circumference.
Explore our full line of candle filters, leaf disc units, screen packs, and plastic recycling equipment.
