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Chart of common mesh mesh size and wedge wire screen slot size

Mesh, is the number of holes, that is, the number of holes per square inch. The larger the mesh size, the smaller the aperture. In general, mesh × pore size (microns) = 15,000. For example, the 400-mesh screen has a pore size of about 38 microns and the 500-mesh screen has a pore size of about 30 microns. Due to the problem of opening rate, that is, because of the different thickness of the wire used for braiding, the standards of different countries are different. There are three kinds of standards in the United States, the British standard and the Japanese standard. The similarities between Britain and the United States Japan's difference is larger. Our country uses the American standard, that is, it can be calculated by the formula given above.

目数(mesh)

微米(μm)

目数(mesh)

微米(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

24

700

240

61

28

600

350

58

30

550

270

53

32

500

300

48

35

425

325

45

40

380

400

38

42

355

500

25

45

325

600

23

48

300

800

18

50

270

1000

13

60

250

1340

10

70

212

5000

2.6

80

180

8000

1.6

90

160

10000

1.3