Mesh to Micron chart
By Ralph
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 β 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)
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