The core filtration media integrates protective outer mesh, precision filter cloth (Dutch weave or square mesh), and drainage support wire cloth sintered into a single monolithic matrix under high vacuum and heat.
Fabricated from heavy-gauge 316L stainless steel tubing with spirally arranged or longitudinal perforated patterns, designed to withstand intense compressive forces during high-viscosity polymer pumping.
Engineered threaded adapters (M42, NPT, or quick-release bayonet connectors), hex nuts, and seal faces micro-machined to achieve zero-leakage seals under cyclic thermal expansion.
Utilizing imported German weaving machines to fabricate ultra-fine 316L stainless steel wire cloth (Plain Dutch Weave, Twilled Dutch Weave). Multiple layers are diffusion-bonded under high vacuum ($10^{-4}$ Torr) at 1100°C.
Controlled servo-driven pleating units create precise, non-blinded fold heights and uniform pleat spacing to ensure uniform flow distribution across every square millimeter of wire cloth.
Longitudinal side seams and end-cap adapter connections are executed using robotic TIG and fiber laser welding systems, eliminating thermal oxidation and preventing micro-fissures.
Multi-stage ultrasonic immersion in specialized degreasing baths removes all drawing lubricants, oil residues, and particulates, achieving nuclear-grade cleanliness before furnace drying.
In high-speed biaxially oriented film stretching lines (BOPP/BOPET), gel particles or carbonized flecks cause pinholes and film web breaks. Pleated candle filters rating from 5μm to 25μm retain contaminants under continuous 250 bar extrusion pressures, maintaining 24/7 continuous operation.
For medical-grade PP nonwoven web production (SSS/SMS lines), spinneret orifice clogging directly impairs filament uniformity. Stainless steel pleated candles remove foreign particulates, extending spinneret pack longevity by up to 300% and reducing costly downtime.
Post-consumer recycled PET flake contains PVC residues, paper dust, and sticky adhesives. Custom pleated candle filter cartridges provide deep-bed impurity retention during continuous melt filtration, enabling secondary plastics to achieve food-grade purity (FDA compliant).
Polycondensation plants producing POY, FDY, and Industrial Yarn rely on Continuous Polymer Filtration (CPF) systems housing dozens of pleated candle filter elements to guarantee tensile strength and color purity in synthetic filaments.
Beyond polymers, pleated 316L wire mesh elements are widely deployed in refinery catalyst recovery, high-temperature gas desulfurization, hot solvent clarification, and hydraulic oil decontamination systems.
Removing micro-gel specks from silicone resins, hot-melt adhesives, optical acrylics, and cellulose acetate, where rigid mesh geometry prevents filter media compression under extreme fluid viscosity.
Located in Zhejiang Province, our facility benefits from immediate proximity to world-class stainless wire drawing mills, precision CNC machine shops, and chemical testing laboratories, cutting raw material lead times by up to 60%.
Whether reproducing legacy European filter dimensions (e.g., Maag, Kreyenborg, Seebach, Fuji Filter replacements) or customizing proprietary connection threads, our engineering team delivers CAD/3D samples within 5 to 7 business days.
By leveraging automated manufacturing and streamlined overhead structure, our clients achieve 30% to 50% capital cost reductions compared to Western OEMs, while matching or exceeding ISO performance metrics.
| Filtration Architecture | Active Surface Area Ratio | Differential Pressure (ΔP) | Dirt Holding Capacity (DHC) | Cleaning & Reusability | Relative Cost per Lifecycle |
|---|---|---|---|---|---|
| Pleated Wire Mesh Candle Filter | Ultra High (300%–500%) | Very Low (< 0.5 Bar) | Exceptional (> 45 g/m²) | Highly Reusable (20+ Cycles) | Lowest Long-Term TCO |
| Smooth Cylindrical Mesh Filter | Standard (100% Base) | Moderate (1.2–2.0 Bar) | Low (10–12 g/m²) | Reusable (10–15 Cycles) | Moderate |
| Polymer Leaf Disc Filter | High (250%–350%) | Low (0.6–0.9 Bar) | High (30–38 g/m²) | Reusable (Special Equipment) | High Initial Investment |
| Flat Wire Mesh Extruder Screen Pack | Minimal (30%–50%) | High / Rapid Spikes | Very Low (< 5 g/m²) | Disposable (Single-Use) | High Ongoing Waste |
Our entire manufacturing pipeline—from stainless steel wire inspection to micro-laser welding—operates under audited ISO 9001:2015 quality management procedures.
Filter materials undergo strict XRF alloy testing to guarantee zero heavy metal contamination (Lead, Cadmium, Hexavalent Chromium), rendering them fully compliant with EU food-contact regulations for plastics packaging.
Engineered to meet the stringent safety requirements of EU Directive 2014/68/EU for high-pressure polymer melt vessels operating under severe mechanical stress.
