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25 micron to mm: 0.025 mm
25 microns is 0.025 mm, or 0.000984 inch. As a sieve opening it is 500 mesh on the ASTM E11 series. For a wedge wire screen, specify it directly as a 25 micron (0.025 mm) slot.
Opening25 µm
- Millimetres
- 0.025 mm
- Inches
- 0.0009843 in
- Thou (mil)
- 0.9843 thou
- Mesh
- 500 mesh
- Nearest coarser sieve
- 500 mesh, 25 µm
- Nearest finer sieve
- 500 mesh, 25 µm
Equivalent wedge wire slot: 25 micron (0.025 mm)
Wedge wire is specified by its slot directly, so a wedge wire screen has no mesh count. Quote the slot in mm or microns.
Your inputs and results go into the quote form, so an engineer can check them against your operating conditions.
Nearby sizes
Sizes near 25 microns
| Micron | mm | Mesh |
|---|---|---|
| 5 µm | 0.005 | finer than 635 |
| 10 µm | 0.01 | finer than 635 |
| 20 µm | 0.02 | 635 |
| 25 µm | 0.025 | 500 |
| 30 µm | 0.03 | about 463 |
| 40 µm | 0.04 | about 376 |
| 50 µm | 0.05 | about 288 |
Swipe sideways to see the whole table.
What passes a 25 micron opening
As a general reference on the Wentworth grade scale, particles smaller than 25 µm pass: clay. Real separation also depends on particle shape, the screen's open area and how the screen is loaded.
The wedge wire equivalent
A wedge wire screen is specified by its slot, so the equivalent is a 25 micron (0.025 mm) slot. Because the V-shaped wire widens behind the slot, particles that pass the face do not wedge in it. See mesh to micron and slot size and how to choose slot and open area.