Mesh to Micron chart

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Update time : 2019-05-23 13:14:12

Mesh to Micron chart

What is Mesh?

Mesh is a measurement unit for woven mesh fabric, 1 mesh include 1 hole + 1 yarn. Mesh count of the Mesh fabric refers to how many holes per linear inch, for example, 100 mesh means there are 100 holes per linear inch, and 200mesh has 200 holes per linear inch etc.
 

What is Micron?

Micron also called um is a length unit which is 0.001mm or 0.00003937inch, usually to describe the tiny particles size, and aperture size of the mesh fabric in industrial filtration. The Micron size of mesh should be smaller than the particle size in the fluid to capture them.
  

The relationship between Mesh and Micron

The higher mesh count means there are more holes and wire density in unit length, so the micron of aperture decreasing. But they are not fixed proportion as the different mesh count has different yarn diameter (thickness).
 

How to calculate the Aperture Micron (Mesh Opening)?

M=Mesh Count
R=Yarn diameter (mm)
A=Aperture
Aperture=25.4/(divided)Mesh Count-Yarn Diameter
For example: 100mesh count with thread diameter 0.1mm (100um), its aperture (mesh opening) is 25.4/100 – 0.1=0.154mm (154um).
200mesh count with thread diameter 0.05mm(50um), its aperture (mesh opening) is 25.4/200-0.05=0.077 mm(77um)

 



Mesh VS Micron Chart (Nylon mesh & Polyester mesh general)

Mesh Count Mesh Opening
mesh/inch mesh/cm Micron mm inch
12 5 1566 1.566 0.0617
16 6 1188 1.188 0.0467
18 7 1061 1.061 0.0418
20 8 920 0.920 0.0362
24 9 808 0.808 0.0318
25 10 766 0.766 0.0302
30 12 547 0.547 0.0215
35 14 476 0.476 0.0187
40 16 435 0.435 0.0171
50 20 308 0.308 0.0121
60 24 273 0.273 0.0107
70 28 212 0.212 0.0083
80 32 217 0.217 0.0085
90 36 182 0.182 0.0072
100 40 154 0.154 0.0061
110 43 174 0.174 0.0069
120 48 132 0.132 0.0051
140 56 121 0.121 0.0048
150 59 109 0.109 0.0043
160 64 99 0.099 0.0039
180 72 91 0.091 0.0036
200 80 77 0.077 0.0030
230 90 70 0.070 0.0028
250 100 62 0.062 0.0024
280 110 51 0.051 0.0020
305 120 43 0.043 0.00169
330 130 37 0.037 0.00145
355 140 35 0.035 0.00137
400 157 25 0.025 0.00098
430 169 20 0.020 0.00078
470 185 15 0.015 0.00059
530 208 9 0.009 0.00035

Particle size in micron
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