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Hand Testing Screens

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Description

Seedburo’s hand testing screens are a must for anyone who buys, cleans, or grades seed or grain. They are made of selected straight grained wood with nesting frames. These screens can be stacked together with a blank bottom pan to make several separations at one time.

A generous assortment of sizes will enable you to experiment with various separations and select the correct screens for your larger cleaning or sizing operations. Our hand test screens are an excellent choice for experimental or laboratory use when only small samples are available. Made in USA.

Ship wt: 3 lb. each

Please specify the screen perforation sizes on your order, they can be added in the comments field. Bottom pans are sold separately.

Note: Screens are custom made for order – non-returnable 

Round Holes (64ths of an inch) Oblong Holes Square Holes Wires/Sq. Inch Triangular Holes
Inches MM Inches MM Inches MM 10×10 9/64 or 5½V
1/25 1.016 1/26 x ½ 0.98 x 12.70 32/64 12.700 12×12 10/64 or 6V
1/24 1.058 1/25 x ½ 1.02 x 12.70 14×14 11/64 or 6½V
1/23 1.102 1/24 x ½ 1.06 x 12.70 15X15 12/64 or 7V
1/22 1.153 1/23 x ½ 1.10 x 12.70 16×16 17/64 or 9½V
3/64 1.190 1/22 x ½ 1.153 x 12.70 18×18
1/21 1.200 3/64 x 5/16 1.191 x 7.938 20×20
1/20 1.270 3/64 x ½ 1.19 x 12.70 22×22
1/19 1.336 1/20 x ½ 1.270 x 12.700 24×24
1/18 1.410 1/19 x ½ 1.34 x 12.70 26×26
1/16 1.587 1/18 x ¾ 1.410 x 19.050 28×28
1/15 1.691 1/18 x ½ 1.410 x 12.700 30×30
1/14 1.813 1/17 x ½ 1.494 x 12.700 32×32
1/13 1.953 1/15 x ½ 1.691 x 12.700 34×34
1/12 2.116 1/15 x ¾ 1.69 x 19.05 36×36
6 2.381 4½/64 x ½ 1.785 x 12.700 38×38
6½ 2.579 4½/64 x ¾ 1.785 x 19.050 40×40
7 2.778 4¾ x ¾ 1.890 x 19.050 45×45
7½ 2.976 4⅞/64 x ½ 1.934 x 19.050 50×50
7¾ 3.080 4⅞/64 x ¾ 1.934 x 19.050 55×55
8 3.175 5/64 x ½ 1.984 x 12.700 60×60
8½ 3.373 5/64 x ¾ 1.984 x 19.050 3×20
8¾ 3.470 5.25/64 x ¾ 2.080 x 19.050 4×18
9 3.572 5½/64 x ½ 2.182 x 12.700 4×19
9½ 3.770 5½/64 x ¾ 2.182 x 19.050 4×20
9¾ 3.870 5.8/64 x ¾ 2.300 x 19.050 4×22
10 3.969 6/64 x ½ 2.380 x 12.700 6×18
10½ 4.167 6/64 x ¾ 2.380 x 19.050 6×20
10¾ 4.270 6/64 x 1-1/32 2.380 x 26.160 6×22
11 4.366 6½/64 x ¾ 2.579 x 19.050 6×24
11½ 4.564 7/64 x ¾ 2.778 x 19.050 6×26
11¾ 4.660 7.25 x ¾ 2.88 x 19.050 6×28
12 4.763 7½/64 x ¾ 2.972 x 19.050 6×30
12½ 4.961 8/64 x ¾ 3.175 x 19.050 6×32
13 5.159 8/64 x 1 3.18 x 25.4 6×34
13½ 5.357 8/64 x 1¼ 3.18 x 31.75 6×36
14 5.556 8½/64 x ¾ 3.373 x 19.050 6×38
14½ 5.754 8½/64 x 1¼ 3.37 x 31.75 6×40
14¾ 5.850 9/64 x ½ 3.57 x 31.75 6×42
15 5.953 9/64 x ¾ 3.527 x 19.050
15½ 6.150 9/64 x 1¼ 3.57 x 31.75
16 6.350 9½/64 x ¾ 3.770 x 19.050
16½ 6.548 9½/64 x 1¼ 3.77 x 31.75
17 6.747 10/64 x ¾ 3.969 x 19.050
17½ 6.945 10/64 x 1¼ 3.969 x 31.75
18 7.144 10½/64 x ¾ 4.17 x 19.050
18½ 7.342 10½/64 x 1¼ 4.17 x 31.75
19 7.541 11/64 x ¾ 4.366 x 19.050
19½ 7.739 11/64 x 1¼ 4.366 x 31.75
20 7.938 11½/64 x ¾ 4.564 x 19.050
20½ 8.136 11½/64 x 1¼ 4.564 x 31.75
21 8.334 12/64 x ¾ 4.763 x 19.050
21½ 8.532 12/64 x 1¼ 4.763 x 31.75
22 8.731 12½ x ¾ 4.961 x 19.050
22½ 8.929 12½ x 1¼ 4.961 x 31.75
23 9.127 13/64 x ¾ 5.159 x 19.050
23½ 9.330 13/64 x 1¼ 5.159 x 31.75
24 9.525 13½/64 x ¾ 5.357 x 19.050
24½ 9.720 13½/64 x 1¼ 5.357 x 31.75
25 9.922 14/64 x ¾ 5.556 x 19.050
25½ 10.120 14½/64 x ¾ 5.75 x 19.050
26 10.319 15/64 x ¾ 5.953 x 19.050
26½ 10.520 15½/64 x ¾ 6.15 x 19.050
27 10.716 16/64 x ¾ 6.350 x 19.050
27½ 10.910 16½/64 x ¾ 6.55 x 19.050
28 11.113 17/64 x ¾ 6.747 x 19.050
28½ 11.310 17½/64 x ¾ 6.95 x 19.050
29 11.509 18/64 x ¾ 7.144 x 19.050
29½ 11.710 18½/64 x ¾ 7.34 x 19.050
30 11.906 19/64 x ¾ 7.541 x 19.050
30½ 12.100 20/64 x ¾ 7.939 x 19.050
31 12.303 21/64 x ¾ 8.33 x 19.050
31½ 12.500 22/64 x ¾ 8.731 x 19.050
32 12.700 22½/64 x 1 8.93 x 25.400
33 13.100 23/64 x ¾ 9.13 x 19.050
34 13.949 24/64 x ¾ 9.525 x 19.050
34½ 13.690 28/64 x ¾ 11.110 x 19.050
35 13.890 30/64 x ¾ 11.910 x 19.050
35½ 14.090 32/64 x ¾ 12.700 x 19.050
36 14.287 36/64 x ¾ 14.29 x 19.050
38 15.081 N/A 2.15mm x 20mm
40 15.875 N/A 2.25mm x 20mm
42 16.669 N/A 3.75mm x 20mm
44 17.460 N/A 4mm x 20mm
46 18.260 N/A 4mm x 23mm
47 18.650 N/A 4mm x 31mm
48 19.050 N/A 4.25mm x 20mm
50 19.840 N/A 4.25mm x 31mm
52 20.640 N/A 4.35mm x 20mm
54 21.430 N/A 4.35mm x 31mm
55 21.83 N/A 4.4mm x 20mm
56 22.225 N/A 4.4mm x 31mm
57 22.620 N/A 4.5mm x 20mm
64 25.400 N/A 4.5mm x 31mm
1¾ 31.750 N/A 4.75mm x 20mm
N/A 5.5mm N/A 4.75mm x 31mm
N/A 7.5mm N/A 5.25mm x 20mm
N/A 10mm N/A 5.25mm x 31mm
N/A 5.5mm x 20mm
N/A 5.5mm x 31mm
N/A 5.75mm x 20mm
N/A 5.75mm x 31mm
N/A 6mm x 20mm
N/A 6mm x 23mm
N/A 6mm x 31mm
N/A 12mm x 30mm

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