Mesh Count
35
Openings per linear inch
Sifting Solutions
35 mesh corresponds to a nominal opening of 475 microns (0.475 mm). In botanical screening, this is generally treated as a medium separation step for dry sift, pollen, and powder handling lines.
Mesh Count
35
Openings per linear inch
Opening
475 microns
0.475 mm
Opening Inch
0.01870
Nominal clear opening
Open Area
42.8%
Wire diameter 0.251 mm
| Mesh count | 35 |
|---|---|
| Nominal opening (micron) | 475 microns |
| Nominal opening (millimeter) | 0.475 mm |
| Nominal opening (inch) | 0.01870 in |
| Nominal wire diameter | 0.251 mm |
| Nominal open area | 42.8% |
A 35 mesh screen is built with 35 openings per linear inch. For this reference, the clear opening is listed at 475 microns, with a nominal wire diameter of 0.251 mm and an open area near 42.8%. These values are used for engineering comparison, not as a substitute for final supplier drawings.
At 475 microns, this screen size tends to support stable dry separation while still moving material efficiently across the deck. In production terms, it sits in the medium part of the screening range and is usually selected after operators define the target fraction, feed dryness, and deck loading rate.
These formulas explain the unit relationship shown in the table.
Micron from mm
micron = mm x 1000
0.475 mm x 1000 = 475 microns
mm from micron
mm = micron / 1000
475 / 1000 = 0.475 mm
Inch conversion
inch = micron / 25400
475 / 25400 = 0.01870 in
Process notes are assembled directly from the selected opening value so each page stays consistent with the table above.
When a 35 mesh screen is used for pollen collection, the nominal opening is 475 microns. This is usually chosen early in the process to clear large botanical fragments before a finer finishing screen is introduced.
For dry sift separation, 35 mesh gives a nominal clear opening of 475 microns. This range suits balanced production lines that need separation accuracy without sacrificing deck productivity.
In powder grading work, 35 mesh is roughly equivalent to 475 microns. In powder grading, this opening is suited to separating coarse granules from a broader botanical grind.
For botanical pre-screening, a 35 mesh cloth opens at about 475 microns. The screen can still be used as a controlled pre-screen when the incoming material already has a reasonably narrow particle spread.
32 mesh at 500 microns will pass a coarser cut and hold higher throughput. 36 mesh at 450 microns will shift the cut point finer and tighten material control.
Nominal opening values were curated from commonly referenced industrial wire cloth and U.S. sieve conversion charts. Actual clear opening can vary by weave style, wire diameter, and manufacturing tolerance.
Nominal opening values may vary slightly by weave and wire diameter. For purchase approval, always confirm the actual cloth specification issued by the manufacturer.