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Sintered Metal Material and Filter Element

Stainless Steel Sintered Wire Mesh Materials and Custom Filter Elements

Multi-Layer Porous Metal Laminates for High-Differential Pressure and Corrosive Industrial Filtration

Sintered wire mesh is a rigid porous filter material produced by combining multiple layers of woven wire mesh through a high-temperature vacuum sintering (diffusion bonding) process. Unlike conventional wire cloth, sintering fuses the wire intersection points permanently, eliminating mesh migration under high pressure and enabling precise micron retention without pore movement.

We supply both standard sintered mesh sheets/laminates for fabricators and precision-machined filter elements tailored to OEM specifications.

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Key Performance Metrics

Parameter	Standard Specification	Customization Options
Materials	Stainless Steel 316L (1.4404), 304L, 904L, Hastelloy C-22/C-276, Monel 400, Inconel 600	Custom alloy selection based on corrosion, temperature, and process requirements
Filtration Rating	1–200 μm (absolute)	Custom filtration rating available
Operating Temperature	-200 to 600 °C (-328 to 1112 °F) continuous	Material and construction can be selected for specific temperature conditions
Maximum Differential Pressure	Up to 20 MPa (200 bar)	Depends on layer configuration and support structure
Standard Sheet Size	500 × 1000 mm; 600 × 1200 mm; 1000 × 1200 mm	Custom dimensions up to 1200 × 1500 mm

Standard Layer Configurations And Specifications

Standard 5-Layer Sintered Wire Mesh

Layer 1 (Protective Layer): Coarse Mesh. Protects the control layer from physical impact during handling and reverse flow.

Layer 2 (Control Layer): Precision Woven Mesh. Dictates exact micron rating (1 to 200 micron).

Layer 3 (Dispersion Layer): Fine Mesh. Distributes fluid evenly across the control layer to optimize flow distribution.

Layer 4 (Reinforcement Layer): Medium/Coarse Mesh. Provides structural support against differential pressure.

Layer 5 (Base Support Layer): Coarse Heavy Mesh. Delivers overall mechanical rigidity to prevent deflection under heavy loads.

Custom Multi-Layer Configurations

Square-Woven Mesh Sintered Sheets: High open area, optimized for fluidization plates, air slides, and powder handling.

Perforated Plate Reinforced Mesh: Sintered wire mesh laminated onto a 1.0 to 3.0 mm perforated metal backing. Engineered for high-stress applications exceeding 10 MPa differential pressure.

Dutch-Woven Sintered Laminates: Multi-layer Dutch weave combination for fine particulate filtration in polymer melt processing.

Sintered Mesh Plate for Fluidization Device

Material Integrity and Corrosion Resistance

Raw material verification is critical to preventing premature downtime in aggressive chemical environments.

☆Positive Material Identification (PMI): Every raw material batch undergoes X-ray fluorescence (XRF) testing before sintering to verify elemental composition (e.g., Molybdenum content >= 2.0% for 316L).

☆High-Alloy Options

AISI 316L: Standard for pharmaceutical, food processing, and general industrial solvents.
904L and Hastelloy C-22: Applied in high-chloride, acidic, or marine applications where pitting and crevice corrosion occur in standard austenitic steels.
Monel 400: Selected for HF acid environments and marine ballast water filtration.

Primary Industrial Applications

Polymer Melt and Synthetic Fiber Filtration
Sintered mesh cylindrical cartridges and pleated elements process high-viscosity resins (PET, PA, PP). The fixed pore structure withstands continuous pressures up to 15 MPa without pore dilation or wire breakdown.

Pharmaceutical Agitated Nutsche Filter Dryers (ANFD)
Smooth surface Dutch-woven sintered filter disks allow complete cake removal and clean-in-place (CIP/SIP) operations. Surface roughness controlled to Ra < 0.4 micron on polished contact surfaces.

Fluidized Bed Gas Distribution Plates
Sintered multi-layer plates provide uniform air dispersion in drying, cooling, and powder fluidization processes, eliminating hot spots and channelling.

Marine Ballast Water Treatment Systems (BWTS)
Corrosion-resistant mesh screens (often 904L or 2507 Super Duplex) operate in seawater to strain organic organisms and particulates prior to UV or chemical treatment.

Control Valve Protection (Miniature Filters)
Custom press-fit mesh thimbles and disk inserts protect hydraulic and pneumatic valve seats from stray pipeline debris.

Custom Element Fabrication and OEM Capabilities

We transform raw sintered mesh sheets into precision-machined filter elements based on your technical drawings or reverse-engineered samples.

Manufacturing Operations:

01/

Laser and Plasma Cutting: Precision edge profiling for round disks, pie segments, and complex geometries with zero edge fraying.

02/

TIG and Plasma Arc Welding: Fully sealed seam welds and end-cap bonding without weld flux contamination.

03/

Pleating: Increases filtration surface area up to 300% within the same outer diameter envelope.

04/

Machining and Threaded Connectors: Machined end fittings (DOE, SOE, Threaded NPT/BSP, Sanitary Tri-Clamp, Flanged) welded with 100% helium leak testing capability on request.

Quality Control and Testing Standards

Bubble Point Test (ISO 4003)

Verifies maximum pore size and checks for fabrication defects, pinholes, or delamination.

Air Permeability Test (ISO 4022)

Measures pressure drop vs. flow velocity to confirm consistent porosity across production lots.

Dimensional Inspection

CMM and optical comparator checks on critical mounting tolerances (+/- 0.05 mm on machined interfaces).

Weld Integrity Testing

Dye penetrant inspection (DP) and hydrostatic testing up to specified working pressures.

Material Certification

Mill Test Reports (MTR) provided according to EN 10204 3.1 for full metallurgical traceability.

Selection Guide: Sintered Wire Mesh vs Other Porous Metals

Sintered Metal Filter Type	Structure	Mechanical Strength	Permeability / Flow Rate	Cleanability / Backwash	Dirt-Holding Capacity
Sintered Wire Mesh	Woven wires fused at intersections	Highest tensile and burst strength	Medium to High	Excellent; smooth surface enables effective contaminant release	Primarily surface filtration
Sintered Metal Powder	Spherical or irregular powder granules	High compressive strength; relatively brittle	Low to Medium	Fair; depth filtration traps solids within the media	Primarily depth filtration
Sintered Metal Fiber Felt	Non-woven random metallic fibers	Moderate strength	Highest; approximately 80% void volume	Fair; primarily used as depth media	High depth-filtration capacity

FAQ

Q: What is the main structural advantage of sintered wire mesh over single-layer wire cloth?

A: Single-layer wire mesh suffers from wire displacement and pore enlargement under pressure. Sintering permanently welds the intersecting wires under heat and pressure, locking the mesh apertures in place. This guarantees precise pore size stability, higher mechanical strength, and enhanced backwashing durability under severe differential pressures.

Q: Can sintered wire mesh filter elements be cleaned and reused?

A: Yes. Due to its surface-loading filtration characteristics and rigid metallic structure, sintered mesh responds well to chemical cleaning, ultrasonic bath treatment, high-pressure liquid backflushing, or thermal burnout (for organic contaminants). Proper cleaning restores pressure drop without damaging the pore structure.

Q: How do I select the right micron rating for high-viscosity fluids?

A: For high-viscosity media (such as polymer melts or heavy oils), micron selection requires balancing target filtration efficiency with allowable initial differential pressure. Increasing filtration surface area through pleated elements or selecting a multi-layer Dutch weave structure optimizes dirt-holding capacity while preventing rapid pressure spikes. Our engineering team can evaluate your fluid viscosity, flow rate, and temperature to recommend an optimal layer setup.

Q: What tolerances can you maintain on custom-fabricated filter disks and cartridges?

A: For standard laser-cut disks, we maintain diameter tolerances within +/- 0.10 mm. For precision-machined end caps and mounting hardware welded to filter elements, we achieve machining tolerances within +/- 0.02 mm to ensure zero bypass around housing seals.

Q: How do you prevent mesh layer delamination during operation?

A: Delamination typically occurs due to incomplete diffusion bonding during sintering or inadequate pressure controls. We utilize computer-controlled high-vacuum sintering furnaces with precise temperature-ramp protocols and uniform hydraulic pressing. Every batch undergoes mechanical bending and bubble point testing to confirm total interlayer fusion.

Q: Do you supply material certification with shipments?

A: Yes. Every shipment includes EN 10204 3.1 Mill Test Certificates covering chemical composition analysis, physical dimensions, bubble point pore size verification, and production lot traceability.

Q: What is your standard lead time for custom OEM filter elements?

A: Standard sintered wire mesh sheets (in-stock configurations) ship within 3 to 5 business days. Custom-designed filter elements, cartridges, or plates requiring laser cutting, forming, and TIG welding typically require 2 to 3 weeks following final approval of engineering drawings.

As one of the leading sintered metal material and filter element manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please rest assured to buy advanced sintered metal material and filter element from our factory. We also accept customized orders.