Views: 0 Author: Site Editor Publish Time: 2026-04-29 Origin: Site
China stainless steel fine wire mesh refers to woven wire cloth with very high mesh counts (typically 200 mesh and above) and extremely fine wire diameters. This type of mesh is used for applications requiring precise particle retention in the micron and sub‑micron range. Unlike heavy‑duty screens, fine wire mesh is delicate but offers exceptional accuracy. This article covers its specifications, manufacturing challenges, and typical uses.
Fine wire mesh is generally classified as having:
Mesh count – 200 × 200 openings per inch or higher (up to 635 mesh).
Wire diameter – Below 0.05 mm (50 microns), often as fine as 0.025 mm.
Opening size – As small as 20 microns (0.020 mm) or less.
China stainless steel fine wire mesh is produced using precision looms that maintain consistent tension across very thin wires. Common stainless steel grades include 304 and 316, with 316 preferred for corrosive environments.
| Mesh count (per inch) | Wire diameter (mm) | Opening (μm) | Open area (%) | Typical application |
|---|---|---|---|---|
| 200 × 200 | 0.053 | 74 | 34 | Powder classification, lab sieves |
| 250 × 250 | 0.045 | 57 | 29 | Fine chemical filtration |
| 325 × 325 | 0.040 | 38 | 24 | Ink and paint filtering |
| 400 × 400 | 0.035 | 28 | 19 | Pharmaceutical sifting |
| 500 × 500 | 0.030 | 20 | 16 | High‑precision particle analysis |
| 635 × 635 | 0.025 | 15 | 12 | Ultra‑fine screening, specialized labs |
Producing china stainless steel fine wire mesh requires advanced technology:
Wire drawing – Drawing stainless steel to diameters below 0.03 mm without breakage demands high‑quality raw material and precise die control.
Loom tension management – Too much tension breaks fine wires; too little results in uneven openings.
Quality inspection – Automatic optical inspection systems are used to detect broken wires or oversized apertures.
Heat treatment – Annealing after weaving relieves internal stresses and improves flexibility.
Laboratory test sieves – ASTM E11 compliant sieves from 20 μm to 125 μm.
Powder metallurgy – Classifying metal powders for additive manufacturing and pressing.
Food and beverage – Sifting flour, starch, cocoa, and other fine ingredients.
Pharmaceutical – Sieving active ingredients and excipients to ensure uniform particle size.
Chemical processing – Filling fine catalysts into reactors or recovering catalyst fines.
Electronics – Screening solder powders and conductive pastes.
One important consideration is open area percentage. As mesh count increases, open area decreases significantly. For example, a 200 mesh cloth may have ~34% open area, while a 500 mesh cloth drops to ~16%. This affects flow rate and pressure drop. When selecting fine mesh, balance the required particle retention with acceptable throughput.
Another insight: ultrasonic sieving is often employed with fine mesh to prevent blinding (blockage) caused by fine particles. The ultrasonic vibrations keep the mesh clean and maintain throughput.
Q1: Can fine wire mesh be welded or framed?
A: Yes, but with caution. Fine mesh is heat‑sensitive; excessive heat can burn or warp the wires. Spot welding with low energy or mechanical clamping is preferred.
Q2: How do I clean fine stainless steel wire mesh?
A: For dry powder, gentle brushing with a soft brush or compressed air from the underside. For wet applications, ultrasonic cleaning is most effective without damaging the wires.
Q3: What is the difference between 304 and 316 in fine mesh?
A: Both grades are available. 316 offers better corrosion resistance, especially in chloride environments. For most indoor laboratory use, 304 is sufficient and more economical.
Q4: Why do some fine meshes have a shiny or dull surface?
A: This is due to the final finishing process. Electro‑polished mesh has a bright, clean surface and improved corrosion resistance. Mill‑finished mesh has a matte appearance and is suitable for most industrial uses.
China stainless steel fine wire mesh enables accurate particle sizing and fine filtration across many high‑precision industries. When sourcing fine mesh, verify the exact mesh count, wire diameter, and opening size using a calibrated microscope. Anping Milesen Metal Net Products Co., Ltd. offers fine mesh from 200 to 635 mesh with material certificates and consistent quality.
