60 mesh denotes 60 wires per inch in each direction. For emi / rfi shielding mesh the governing document is MIL-DTL-83528 / IEEE 299; the specification row, aperture-micron conversion and selection guidance for this count follow.
60 Mesh Specification Row (MIL-DTL-83528 / IEEE 299)
| Mesh count | Wire diameter (mm) | Aperture (mm) | Open area (%) | Material | Shielding @ 1 GHz (dB) |
|---|---|---|---|---|---|
| 60-Mesh | 0.110 | 0.313 | 55 | Copper | 65 |
60 Mesh to Micron & Aperture
| Openings per inch | 60 |
|---|---|
| Aperture (opening width) | 0.23 mm |
| Micron rating | 233 µm |
| Standard wire diameter | 0.19 mm |
| Open area | 30.4 % |
Aperture = (25.4 mm ÷ mesh count) − wire diameter. The micron rating equals the aperture in micrometres; actual retention also depends on particle shape and cake formation.
Wire Diameter Options at 60 Mesh
| Option | Wire dia | Aperture | Micron | Open area | Weight (SS) |
|---|---|---|---|---|---|
| Heavy wire | 0.247 mm | 0.176 mm | 176 µm | 17.4 % | 1.88 kg/m² |
| Standard wire | 0.190 mm | 0.233 mm | 233 µm | 30.4 % | 1.12 kg/m² |
| Fine wire | 0.143 mm | 0.281 mm | 281 µm | 44.0 % | 0.63 kg/m² |
Heavier wire adds strength and abrasion life but closes the aperture; finer wire opens the aperture and raises throughput at the cost of durability. Specify mesh count AND wire diameter to fix the aperture unambiguously.
Open Area & Flow at 60 Mesh
The standard 60 mesh weave presents an open area of about 30.4%. At this count the mesh presents little flow resistance; selection is normally driven by particle retention and mechanical strength rather than pressure drop.
60 Mesh Cloth Weight
Standard 60 mesh stainless cloth weighs approximately 1.12 kg/m² (density 7.93 g/cm³ basis; brass and copper weave roughly 10% heavier, aluminum about one third). Use this figure for roll handling and freight estimation.
Typical Applications for 60 Mesh EMI / RFI Shielding Mesh
60 mesh emi / rfi shielding mesh is commonly specified for general straining and sieving, paint and coating filtration, grease filters, insect screening, grain cleaning and pre-filtration ahead of fine media.
Plain, Twill or Dutch Weave at This Rating?
Plain square weave is the standard at this count: every opening is a true square of the stated aperture, retention is absolute for hard spherical particles, and the cloth is easy to clean.
When to Step Up or Down from 60 Mesh
Move to 80 mesh when particles are passing that must be retained; drop back to 50 mesh when the element blinds too quickly or the pressure drop is excessive. In a multi-layer pack, pair this count with a coarser support mesh downstream to carry the pressure load.
What EMI / RFI Shielding Mesh Does
Attenuating electromagnetic and radio-frequency interference through vents, windows and enclosures while still passing air and light.
Fitting & Care
- Clamp the mesh edges under a conductive gasket or solder them continuously to the frame.
- Keep paint and anodizing off contact faces; mask them before finishing.
