Stainless Steel Reversed Dutch Weave Mesh Supplier

Stainless Steel Reversed Dutch Weave Mesh

Anping CREMOTIVE Wire Mesh Products CO., LTD is pleased to introduce its Stainless Steel Reversed Dutch Weave Mesh, a specialized filtration medium engineered for precision separation across demanding industrial processes. In contrast to plain or conventional Dutch weave patterns, reversed Dutch weave arranges the finer wires in the weft (crosswise) direction and the heavier wires in the warp (longitudinal) direction. This configuration yields narrow rectangular openings with enhanced slot uniformity, a high open-area ratio, and substantial mechanical stability.

Weave Construction and Materials
The reversed Dutch weave begins with selecting high-grade stainless steel wire—commonly 316L for corrosion-resistance and 304 for general-purpose applications. During weaving, fine weft wires (down to 0.03 mm in diameter) are interlaced through larger warp wires (ranging from 0.25 mm to 1.00 mm). Each intersection is double-crimped: a crimp first in the warp direction and then again in the weft direction, ensuring wire junctions remain locked even under high fluid velocities and pressure fluctuations. After weaving, the mesh is annealed in a controlled atmosphere to relieve work hardening and then passivated per ASTM A967 guidelines, resulting in a clean, oxide-rich surface that resists rust and pitting.

Performance Characteristics

• High Open-Area Ratio (Up to 45 %): The combination of fine weft and coarser warp wires enables a broad open area, which translates into lower pressure drop and higher throughput—critical for processes where fluid flow must be maintained without sacrificing filtration quality.

• Precise Slot Dimensions: Standard slot sizes range from 10 µm × 100 µm up to 200 µm × 2000 µm, with tolerance held within ±10 % of the nominal opening. This precision ensures consistent cut-points for particle retention and minimal variation across production batches.

• Mechanical Stability: The heavier warp wires bear the structural load, allowing mesh panels to span greater widths without intermediate support frames. This rigidity prevents sagging or distortion when the mesh is installed in large filter housings or framework.

• Thermal and Chemical Resistance: Stainless steel mesh operating temperatures can exceed 275 °C continuously. The use of 316L alloy further extends compatibility to chloride-rich environments and weak acids, making the mesh suitable for aggressive chemical streams.

Typical Applications

• Pharmaceutical and Biotechnology: In sterile venting and liquid clarification, reversed Dutch weave mesh removes bacterial cells (typically ~0.5–1 µm) when configured with multiple layers or support structures. Its ability to withstand autoclaving and CIP (clean-in-place) cycles makes it a reliable choice for filtration under sanitary conditions.

• Fine Chemical and Catalyst Recovery: Reactor effluent streams often contain sub-10 µm catalyst fines. Reversed Dutch weave mesh, with its uniform slots and high open-area, captures these fines while maintaining high flow rates, thereby protecting downstream equipment and improving catalyst reuse.

• Membrane Prefiltration: In reverse-osmosis (RO) and ultrafiltration (UF) systems, reversed Dutch weave mesh units serve as a robust prefilter, intercepting suspended solids that could foul sensitive membrane surfaces. The mesh’s tolerance to backflushing ensures easy cleaning and long service life.

• Food and Beverage Polishing: Haze removal in beer and wine production often relies on very fine filtration. Stainless steel reversed Dutch weave mesh constructed to 50 µm cut-points can polish clarified liquids without imparting flavor changes or leaching undesirable compounds.

Customization and Quality Assurance
Anping CREMOTIVE offers reversed Dutch weave mesh panels in widths up to 2 m and roll lengths to 50 m. Mesh thickness, warp/weft wire diameters, and crimp patterns can be tailored to match specific flow-rate and retention requirements. Optional secondary processing includes electropolishing, which further smooths wire surfaces to minimize particle adhesion and facilitate cleaning. Each production lot undergoes rigorous dimensional inspection using optical image analysis to confirm slot size and weft/warp counts. Mechanical testing verifies tensile strength and elongation characteristics. A Certificate of Compliance accompanies every shipment, documenting alloy certification, weave specification, slot tolerance, and passivation compliance.

By combining the reversed Dutch weave geometry with high-quality stainless steel alloys and stringent manufacturing controls, Anping CREMOTIVE Wire Mesh Products CO., LTD delivers filter media that balance throughput, separation precision, and long-term reliability—enabling engineers to meet stringent process targets with confidence.