Micron-mesh comparison table

Micron-mesh comparison table:

The number of screen mesh refers to the number of screen holes, which is the number of holes per square inch. The larger the mesh number, the smaller the aperture. Generally speaking, mesh number × pore size (micron number) ≈ 15000 (the larger the mesh number, the smaller the value). For example, the 400-mesh sieve has a pore size of about 38 microns; the 500-mesh sieve has a pore size of about 25 microns. Due to the problem of opening rate, that is, because the thickness of the wire used in weaving the net is different, the standards of different countries are also different. At present, there are many standards such as American standards, British standards and Japanese standards, among which the British and American standards Similar to Japan, the difference is quite large. Most of our country uses the American standard, that is, it can be calculated by the formula given above.　　　

Mesh	Micron (μm)	Mesh	Micron (μm)
2	8000	100	150
3	6700	115	125
4	4750	120	120
5	4000	125	115
6	3350	130	113
7	2800	140	109
8	2360	150	106
10	1700	160	96
12	1400	170	90
14	1180	175	86
16	1000	180	80
18	880	200	75
20	830	230	62
twenty four	700	240	61
28	600	250	58
30	550	270	53
32	500	300	48
35	425	325	45
40	380	400	38
42	355	500	25
45	325	600	twenty three
48	300	800	18
50	270	1000	13
60	250	1340	10
65	230	2000	6.5
70	212	5000	2.6
80	180	8000	1.6
90	160	10000	1.3

Sieve mesh commonly used in my country - micron (μm) comparison table

Due to habit and convenience, our country uses the following screen mesh-micron comparison table in many industries.

Mesh	Micron (μm)	Mesh	Micron (μm)
2.5	7925	60	246
3	5880	65	220
4	4599	80	198
5	3962	100	165
6	3327	110	150
7	2794	180	83
8	2362	200	74
9	1981	250	61
10	1651	270	53
12	1397	325	47
14	1165	425	33
16	991	500	25
20	833	625	20
twenty four	701	800	15
27	589	1250	10
32	495	2500	5
35	417	6250	2
40	350	12500	1

Mesh	Number of threads	Depth (μm)
275	110	32
260	105	33
250	100	35
240	95	36
225	90	38
210	85	41
200	80	43
185	75	47
175	70	49
165	65	53
150	60	58