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1000 micron to mm: 1 mm
1000 microns is 1 mm, or 0.0394 inch. As a sieve opening it is 18 mesh on the ASTM E11 series. For a wedge wire screen, specify it directly as a 1000 micron (1 mm) slot.
Opening1,000 µm
- Millimetres
- 1 mm
- Inches
- 0.03937 in
- Thou (mil)
- 39.37 thou
- Mesh
- 18 mesh
- Nearest coarser sieve
- 18 mesh, 1000 µm
- Nearest finer sieve
- 18 mesh, 1000 µm
Equivalent wedge wire slot: 1,000 micron (1 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 1000 microns
Swipe sideways to see the whole table.
What passes a 1000 micron opening
As a general reference on the Wentworth grade scale, particles smaller than 1,000 µm pass: medium sand, fine sand, very fine sand, silt, 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 1,000 micron (1 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.