Tokyo Screen – Test Sieves
Brand: Tokyo Screen
Model: JIS 8801
Metal Wire Mesh
According to the JIS standard, the metal wire mesh of sieves is defined such that each metal wire should cross vertically, shaping a regular square as the aperture for screens (flat weave). When one side of the square (aperture) is less than 45 μm, the mesh may be woven into twill by wires (twill weave). To comply with the JIS standard, Tokyo Screen embraces two types of wire cloth: (1) flattop weave when the aperture is over 2.36 mm. and (2) twill weave when the aperture is less than 38 μm
Scale and Tolerance of Test Sieves:
| Unit: mm | ||||||
| Nominal frame size | Diameter or length of Effective sieving surface | Depth | Frame plate Thickness | |||
| D1 | D2 | Minimum | Maximum | H1 | t1 Upper Frame | t2 Bottom Frame |
| 300+0.60 | 300-0.1, -0.7 | 285 | 300 | 100 or 60 | 0.6 | 1.0 |
| 200+0.60 | 200-0.1, -0.7 | 185 | 200 | 100, 60, 45 or 25 | 0.6 | 1.0 |
| 150+0.60 | 150-0.1, -0.7 | 135 | 150 | 60, 45 or 25 | 0.6 | 1.0 |
| 75+0.60 | 75-0.1, -0.7 | 65 | 75 | 20 | 0.4 | 0.4 |
