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Advisory & News
- Industrial sieve/ Mesh to opening conversion
Industrial sieve( mesh) |
Opening (μm) |
10 |
2000 |
20 |
840 |
30 |
590 |
40 |
420 |
50 |
297 |
60 |
250 |
70 |
210 |
80 |
177 |
100 |
149 |
120 |
125 |
140 |
105 |
170 |
88 |
200 |
74 |
230 |
62 |
- Sieves in CP to mesh conversion
Sieve number in CP |
Mesh |
1# sieve |
10 mesh |
1# sieve |
20 mesh |
3# sieve |
50 mesh |
4# sieve |
60 mesh |
5# sieve |
80 mesh |
6# sieve |
100 mesh |
7# sieve |
120 mesh |
8# sieve |
140 mesh |
9# sieve |
200 mesh |
- Sieves in CP to opening conversion
Sieve number in CP |
Opening (μm) |
1# sieve |
2000±70 |
1# sieve |
850±29 |
3# sieve |
355±13 |
4# sieve |
250±9.9 |
5# sieve |
180±7.6 |
6# sieve |
150±6.6 |
7# sieve |
125±5.8 |
8# sieve |
90±4.6 |
9# sieve |
75±4.1 |
Note：
1, there are 9 kind of sieve in CP, the opening of 1# sieve is biggest and 9# is smallest. The CP is in according to Chinese standard of R40/3.
2, in pharmaceutical industry, the mesh number is the number of hole per 2.54cm2; i.e., the sieve with 100 holes per 2.54cm2 is called as 100 mesh sieve. The fineness is better if the mesh number is bigger.
Particle size / Mesh to microns conversion
Mesh to Microns Conversion
US Sieve Series |
Opening (µm) |
US Sieve Series |
Opening (µm) |
4
5
6
7
8
10
12
14
16
18
20
25
30
35 |
4760
4000
3360
2830
2380
2000
1680
1410
1190
1000
841
707
595
500 |
40
45
50
60
70
80
100
120
140
170
200
230
270
325
400 |
420
354
297
250
210
177
149
125
105
88
74
63
53
44
37 |
Tyler Mesh |
Opening (µm) |
Tyler Mesh |
Opening (µm) |
2
3
3
4
5
6
7
8
9
10
12
14
16
20
24
28 |
8000
6700
5600
4750
4000
3350
2800
2360
2000
1700
1400
1180
1000
850
710
600 |
32
35
42
48
60
65
80
100
115
150
170
200
250
270
325
400
500 |
500
425
355
300
250
212
180
150
125
106
90
75
63
53
45
38
25 |
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