Seedburo Equipment
Hand Testing Screens
Product 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.
Custom Screens - THIS IS ARE CUSTOM MADE SCREENS, ORDERED ACCORDING TO YOUR SPECIFICATIONS - ONCE MANUFACTURED AND DELIVERED, THESE ARE NOT RETURNABLE.
Scroll to view all available sieve perforation sizes and configurations.
Scroll to view all available sieve perforation sizes and configurations.
| Round Holes (64ths of an inch) | Round Holes (64ths of an inch) | Oblong Holes | Oblong Holes | Wires/Sq. Inch | ||||
|---|---|---|---|---|---|---|---|---|
| Inches | MM | Inches | MM | Inches | MM | Inches | MM | |
| 1/25 | 1.016 | 6 | 2.38 | 1/26 x 1/2 | 0.98 x 12.70 | 13/64 x 3/4 | 5.159 x 19.050 | 10 x 10 |
| 1/24 | 1.058 | 6½ | 2.58 | 1/25 x 1/2 | 1.02 x 12.70 | 13/64 x 1¼ | 5.159 x 31.75 | 12 x 12 |
| 1/23 | 1.102 | 7 | 2.78 | 1/24 x 1/2 | 1.06 x 12.70 | 13½/64 x 3/4 | 5.357 x 19.050 | 14 x 14 |
| 1/22 | 1.153 | 7½ | 2.98 | 1/23 x 1/2 | 1.10 x 12.70 | 13½/64 x 1¼ | 5.357 x 31.75 | 15 x 15 |
| 3/64 | 1.190 | 8 | 3.18 | 1/22 x 1/2 | 1.153 x 12.70 | 14/64 x 3/4 | 5.556 x 19.050 | 16 x 16 |
| 1/21 | 1.200 | 8½ | 3.37 | 3/64 x 5/16 | 1.191 x 7.938 | 14½/64 x 3/4 | 5.75 x 19.050 | 18 x 18 |
| 1/20 | 1.270 | 9 | 3.57 | 3/64 x 1/2 | 1.19 x 12.70 | 15/64 x 3/4 | 5.953 x 19.050 | 20 x 20 |
| 1/19 | 1.336 | 9½ | 3.77 | 1/20 x 1/2 | 1.270 x 12.700 | 15½/64 x 3/4 | 6.15 x 19.050 | 22 x 22 |
| 1/18 | 1.410 | 10 | 3.97 | 1/19 x 1/2 | 1.34 x 12.70 | 16/64 x 3/4 | 6.350 x 19.050 | 24 x 24 |
| 1/16 | 1.587 | 10½ | 4.17 | 1/18 x 3/4 | 1.410 x 19.050 | 16½/64 x 3/4 | 6.55 x 19.050 | 26 x 26 |
| 1/15 | 1.691 | 11 | 4.37 | 1/18 x 1/2 | 1.410 x 12.700 | 17/64 x 3/4 | 6.747 x 19.050 | 28 x 28 |
| 1/14 | 1.813 | 11½ | 4.56 | 1/17 x 1/2 | 1.494 x 12.700 | 17½/64 x 3/4 | 6.95 x 19.050 | 30 x 30 |
| 1/13 | 1.953 | 12 | 4.76 | 1/15 x 1/2 | 1.691 x 12.700 | 18/64 x 3/4 | 7.144 x 19.050 | 32 x 32 |
| 1/12 | 2.116 | 12½ | 4.96 | 1/15 x 3/4 | 1.69 x 19.05 | 18½/64 x 3/4 | 7.34 x 19.050 | 34 x 34 |
| 13 | 5.16 | |||||||
| 13½ | 5.36 | |||||||
| 14 | 5.56 | |||||||
| 14½ | 5.75 | |||||||
| 15 | 5.95 | |||||||
| 15½ | 6.15 | |||||||
| 16 | 6.35 | |||||||
| 16½ | 6.55 | |||||||
| 17 | 6.75 | |||||||
| 17½ | 6.95 | |||||||
| 18 | 7.14 | |||||||
| 18½ | 7.34 | |||||||
| 19 | 7.54 | |||||||
| 19½ | 7.74 | |||||||
| 20 | 7.94 | |||||||
| 20½ | 8.14 | |||||||
| 21 | 8.33 | |||||||
| 21½ | 8.53 | |||||||
| 22 | 8.73 | |||||||
| 22½ | 8.93 | |||||||
| 23 | 9.13 | |||||||
| 23½ | 9.33 | |||||||
| 24 | 9.53 | |||||||
| 24½ | 9.72 | |||||||
| 25 | 9.92 | |||||||
| 25½ | 10.12 | |||||||
| 26 | 10.32 | |||||||
| 26½ | 10.52 | |||||||
| 27 | 10.72 | |||||||
| 27½ | 10.91 | |||||||
| 28 | 11.11 | |||||||
| 28½ | 11.31 | |||||||
| 29 | 11.51 | |||||||
| 29½ | 11.71 | |||||||
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