Superior Test Sieves for Accurate & Efficient Sieving

Test sieves are precision metal sieves applied for laboratory sampling and particle size analysis. It generally consists of a stainless steel wire mesh screen held in a round metal frame. It is designed to provide desirable precision when filtering out unwanted particles from final products. Test sieves come in a variety of sizes and specifications to meet the screening requirements of various industries. It is widely used in industries involving powdered and granular materials classification, such as chemicals, pharmaceutical and food industries.

Stainless steel test sieves with different opening sizes
Benefits for Sieving
  • ASTM E11 and ISO 3310 compliant stainless steel sieve cloth
  • Uniform and accurate opening sizes for accurate screening
  • Durable and polished stainless steel frame
  • Smooth frame surface prevents cross-contamination.
  • Evenly tensioned wire cloth for precise and accurate analysis
  • Wide ranges of wire cloth & frame sizes for your option
Specifications
  • Wire cloth material: stainless steel
  • Wire diameter: 0.017–9.2 mm
  • Sieve opening: 0 .0008–5.00 mm
  • Sieving size: 20 µm – 125 mm
Table 1: Specification of Stainless Steel Wire Cloth for Test Sieves
Standard*A Sieve Designation Alternative*D Nominal Sieve Opening*B Permissible Variations in Average Openings Maximum Individual Openings Permissible Average Wire Diameter (mm)*C
Minimum Maximum
125 mm 5 in. 5.00 ±3.30 mm 129.06 mm 6.8 9.2
112 mm 4.41 ±2.96 mm 115.74 mm 6.8 9.2
106 mm 4.24 in. 4.24 ±2.80 mm 109.59 mm 5.4 7.2
100 mm 4 in. 3.50 ±2.65 mm 103.44 mm 5.4 7.2
90 mm 3-1/2 in. 3.15 ±2.39 mm 93.18 mm 5.4 7.2
80 mm 2.80 ±2.13 mm 82.91 mm 5.4 7.2
75 mm 3 in. 3.00 ±2.00 mm 77.78 mm 5.4 7.2
71 mm 2.80 ±1.89 mm 73.67 mm 4.8 6.4
63 mm 2-1/2 in. 2.50 ±1.69 mm 65.44 mm 4.8 6.4
56 mm 2.20 ±1.50 mm 58.24 mm 4.3 5.8
53 mm 2.12 in. 2.12 ±1.42 mm 55.15 mm 4.3 5.8
50 mm 2 in. 2.00 ±1.34 mm 52.06 mm 4.3 5.8
45 mm 1-3/4 in. 1.75 ±1.21 mm 46.91 mm 3.8 5.2
40 mm 1.57 ±1.08 mm 41.45 mm 3.8 5.2
37.5 mm 1-1/2 in. 1.50 ±1.01 mm 39.17 mm 3.8 5.2
35.5 mm 1.40 ±0.961 mm 37.10 mm 3.4 4.6
31.5 mm 1-1/4 in. 1.25 ±0.855 mm 32.97 mm 3.4 4.6
28 mm 1.10 ±0.762 mm 29.35 mm 3.0 4.1
26.5 mm 1.06 in. 1.06 ±0.722 mm 27.79 mm 3.0 4.1
25 mm 1 in. 1.00 ±0.682 mm 26.24 mm 3.0 4.1
22.4 mm 7/8 in. 875 ±0.613 mm 23.54 mm 3.0 4.1
20 mm 787 ±0.548 mm 21.05 mm 2.7 3.6
19 mm 3/4 in. 750 ±0.522 mm 20.01 mm 2.7 3.6
18 mm 709 ±0.495 mm 18.97 mm 2.7 3.6
16 mm 5/8 in. 625 ±0.441 mm 16.89 mm 2.7 3.6
14 mm 551 ±0.387 mm 14.81 mm 2.4 3.2
13.2 mm 530 in. 530 ±0.365 mm 13.98 mm 2.4 3.2
12.5 mm 1/2 in. 500 ±0.346 mm 13.25 mm 2.1 2.9
11.2 mm 7/16 in. 438 ±0.311 mm 11.89 mm 2.1 2.9
10 mm 394 ±0.279 mm 10.64 mm 2.1 2.9
9.5 mm 3/8 in. 375 ±0.265 mm 10.11 mm 1.9 2.6
9 mm 354 ±0.251 mm 9.59 mm 1.9 2.6
8 mm 5/16 in. 312 ±0.224 mm 8.54 mm 1.7 2.3
7.1 mm 280 ±0.20 mm 7.60 mm 1.5 2.1
6.7 mm 265 in. 265 ±0.189 mm 7.18 mm 1.5 2.1
6.3 mm 1/4 in. 250 ±0.178 mm 6.76 mm 1.5 2.1
5.6 mm No. 3-1/2 *D 223 ±0.159 mm 6.02 mm 1.3 1.9
5 mm 197 ±0.142 mm 5.39 mm 1.3 1.9
4.75 mm No. 4 187 ±0.135 mm 5.12 mm 1.3 1.9
4.5 mm 177 ±0.128 mm 4.86 mm 1.2 1.7
4 mm No. 5 157 ±0.114 mm 4.33 mm 1.2 1.7
3.55 mm 140 ±0.102 mm 3.85 mm 1.06 1.5
3.35 mm No. 6 132 ±0.096 mm 3.64 mm 1.06 1.5
3.15 mm 124 ±0.091 mm 3.43 mm 1.06 1.5
2.8 mm No. 7 110 ±0.081 mm 3.06 mm 95 1.3
2.5 mm 0984 ±0.073 mm 2.74 mm 85 1.15
2.36 mm No. 8 0937 ±0.069 mm 2.59 mm 85 1.15
2.24 mm 0882 ±0.065 mm 2.46 mm 77 1.04
2 mm No. 10 0787 ±0.059 mm 2.20 mm 77 1.04
1.8 mm 0709 ±0.053 mm 1.99 mm 68 92
1.7 mm No. 12 0661 ±0.050 mm 1.88 mm 68 92
1.6 mm 0630 ±0.047 mm 1.77 mm 68 92
1.4 mm No. 14 0555 ±0.042 mm 1.56 mm 60 82
1.25 mm 0492 ±0.038 mm 1.40 mm 54 72
1.18 mm No. 16 0469 ±0.036 mm 1.32 mm 54 72
1.12 mm 0441 ±0.034 mm 1.26 mm 48 64
1 mm No. 18 0394 ±0.03 mm 1.13 mm 48 64
900 µm *E 0354 ±27.60 µm 1018 µm 43 58
850 µm No. 20 0331 ±26.20 µm 964 µm 43 58
800 µm 0315 ±24.80 µm 909 µm 38 52
710 µm No. 25 0278 ±22.20 µm 811 µm 38 52
630 µm 0248 ±19.90 µm 723 µm 34 46
600 µm No. 30 0234 ±19.00 µm 691 µm 34 46
560 µm 0220 ±17.90 µm 647 µm 30 41
500 µm No. 35 0197 ±16.20 µm 580 µm 27 36
450 µm 0177 ±14.70 µm 525 µm 24 32
425 µm No. 40 0165 ±14.00 µm 498 µm 24 32
400 µm 0157 ±13.30 µm 470 µm 21 29
355 µm No. 45 0139 ±12.00 µm 420 µm 19 26
315 µm 0124 ±10.80 µm 375 µm 17 23
300 µm No. 50 0117 ±10.40 µm 358 µm 17 23
280 µm 0110 ±9.80 µm 336 µm 15 21
250 µm No. 60 0098 ±8.90 µm 302 µm 13 19
224 µm 0088 ±8.10 µm 273 µm 13 19
212 µm No. 70 0083 ±7.80 µm 259 µm 12 17
200 µm 0079 ±7.40 µm 245 µm 12 17
180 µm No. 80 0070 ±6.80 µm 223 µm 106 15
160 µm 0063 ±6.30 µm 200 µm 095 13
150 µm No. 100 0059 ±6.00 µm 188 µm 085 115
140 µm 0055 ±5.70 µm 177 µm 085 115
125 µm No. 120 0049 ±5.20 µm 159 µm 077 104
112 µm 0044 ±4.80 µm 144 µm 068 092
106 µm No. 140 0041 ±4.70 µm 137 µm 06 082
100 µm 0039 ±4.50 µm 130 µm 06 082
90 µm No. 170 0035 ±4.20 µm 119 µm 054 072
80 µm 0031 ±3.90 µm 107 µm 048 064
75 µm No. 200 0029 ±3.70 µm 101 µm 043 058
71 µm 0028 ±3.60 µm 96 µm 043 058
63 µm No. 230 0025 ±3.40 µm 87 µm 038 052
56 µm 0022 ±3.20 µm 78 µm 034 046
53 µm No. 270 0021 ±3.10 µm 74 µm 031 041
50 µm 0020 ±3.00 µm 71 µm 031 041
45 µm No. 325 0017 ±2.80 µm 65 µm 027 037
40 µm 0016 ±2.70 µm 59 µm 027 037
38 µm No. 400 0015 ±2.60 µm 56 µm 024 035
36 µm 0014 ±2.60 µm 54 µm 024 035
32 µm No. 450 0012 ±2.40 µm 49 µm 023 033
25 µm No. 500 0010 ±2.20 µm 40 µm 021 029
20 µm No. 635 0008 ±2.10 µm 33 µm 017 023
Notes
*A: These Standard Designations correspond to the values for the test sieve openings recommended by the International Standards Organization, Geneva, Switzerland. Except where noted.
*B: Only approximately equivalent to the metric values in column 1.
*C: The average diameter of the wires in the x and y direction, measured separately, of any wire cloth shall not deviate from the nominal values by more than ±15%.
*D: These numbers (3-1/2 to 635 are approximate number of openings per linear in. but it is preferred that the sieve be identified by the standard designation in millimeters or micronmeters.
*E: 1000 µm – 1 mm.
  • Frame material: stainless steel, brass
  • Nominal diameter: 3", 6", 8", 10", 12"
  • Nominal height
    • Full height: 1-1/4" – 3-1/4" (31.8 mm – 82.6 mm)
    • Half height: 5/8" – 1-5/8" (15.9 mm – 41.3 mm)
Table 2: Specification of Standard Frames
Nominal Diameter Diameter Tolerance Typical Frame*
Inside at Top** Nominal Height
Full Height Half Height
inch inch mm inch mm inch mm
3 3.000 + 0.030/-0.000 76.2 + 0.76/-0.00 1-1/4 31.8 5/8 15.9
6 6.000 + 0.030/-0.000 152.4 + 0.76/-0.00 1-3/4 44.5 1 25.4
8 8.000 + 0.030/-0.000 203.2 + 0.76/-0.00 2 50.8 1 25.4
10 10.000 + 0.030/-0.000 254 + 0.76/-0.00 3 76.2 1-1/2 38.1
12 12.000 + 0.030/-0.000 304.8 + 0.76/-0.00 3-1/4 82.6 1-5/8 41.3
Notes:
*Frame height measured from top of frame to top of sieve cloth.
**Measured 0.2" (5 mm) below the top of the frame.
Applications
  • Industrial rocks & minerals
  • Food
  • Soils
  • Glass
  • Ceramic
  • Granulates
  • Powders
  • Pharmaceuticals

Industrial rocks & minerals

Powders

Granules

Soils