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Specifications of Sieves of Electroformed Sheet

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Sieves of Electroformed Sheet

Unit: mm

Opening Size and Pitch of Sieves (Square Holes)
Nominal Size Opening Size (W) Pitch (P) (ISO) Sheet Thickness (ISO)
principal sizes (opening) supplementary sizes Standard Size Tolerance Recommended Value Tolerance Recommended Value (for reference)
R40/3 series R20 series (for reference) (±) Maximum(for reference) Maximum Minimum
500 500 500 500 6.5 18 620 710 530 50
450 560 645 475 50
425 425 5.5 15 530 610 450 45
400 490 555 425 45
355 355 355 355 4.6 13 450 510 380 30
315 395 480 335 30
300 300 3.9 11 380 440 320 30
280 355 420 300 30
250 250 250 250 3.3 9 320 385 270 30
224 275 340 250 30
212 212 2.8 8 270 320 240 25
200 260 305 225 25
180 180 180 180 2.3 6 240 270 200 25
160 210 255 180 20~25
150 150 2.0 5 200 230 170 20~25
140 190 230 160 20~25
125 125 125 125 2.0 5 170 205 140 20~25
112 155 205 135 15~25
106 106 2.0 5 150 205 130 15~25
100 140 170 120 15~25
90 90 90 90 2.0 5 130 170 110 15~25
80 115 170 100 15~25
75 75 2.0 5 110 140 95 12~25
71 105 140 90 12~25
63 63 63 63 2.0 5 95 140 90 12~25
56 90 140 75 12~25
53 53 2.0 5 85 100 70 12~25
50 80 100 70 12~25
45 45 45 45 2.0 4 75 100 65 12~25
40 70 90 60 12~25
38 38 2.0 4 65 85 55 12~25
36 65 85 55 12~25
32 32 2.0 4 60 85 50 10~25
25 25 2.0 4 50 65 45 10~25
20 20 2.0 4 45 65 40 10~25
16 16 2.0 4 40 65 35 10~25
10 10 2.0 4 30 50 25 10~25
5 5 2.0 4 25 40 20 8~25

 

Relation between Mesh and Opening
Mesh (LPI) Hole (square only) (μm) Open Area Void Fraction (approx. %) Mesh (LPI) Hole (square only) (μm) Open Area Void Fraction (%) Mesh (LPI) Hole (square only) (μm) Open Area Void Fraction (approx. %)
1000 5 3.9 200 63 24.6 80 212 44.6
750 5 2.2 65 26.2 213 45
10 8.7 75 34.9 227 51
670 10 7 85 44.8 250 62
15 15.6 150 85 25.3 60 255 36.3
16 17.8 90 28.3 271 41
500 10 3.9 97 33 300 50.3
15 8.7 106 39 302 51
16 9.9 125 54.7 355 70.4
20 15.5 125 107 27.8 50 322 40.2
25 24.2 125 38 355 48.8
400 30 22.3 150 54.6 384 57.1
32 25.4 120 116 30 45 425 56.8
38 35.8 125 34.8 455 65
333 38 24.8 127 35.9 30 500 34.8
41 28.9 110 139 36 600 50
45 34.8 150 42 25 600 35
250 45 19.6 151 42.7 710 48.8
49 23.2 100 165 42.2 20 850 44.8
53 27.2 180 50 14.5 1000 32.6
57 31.5 90 180 40.7
63 38.4 181 41.2
65 41 197 48.8

Meshes and openings not listed are also available.
Electroformed seives with holes from 1720 to 2 μm have been produced.