Perforated / punched sieve are made by drilling or punching on stainless steel plates. Perforated stainless steel sieves have the round hole, square hole or slotted hole to meet customers demand. The meshes are usually round but sometimes square. The range of the sieve thickness is 5-10mm and materials are stainless steel, high carbon steel, and galvanized steel.
AISI304 Perforated Sieves for Grains Grading
Round Hole Punched Sheet, Material for Sieve Processing
Stainless Steel Perforated Plate Sieves are popularly used as Grain Sieves. The sieves are used by Government agriculture and grain organizations worldwide for testing grains and cereals grades. Commonly the stainless steel perforated plate is framed with 200 mm diameter brass or stainless steel frames to form a sieve device.
The aperture sizes as specified in ISO 5223.
Hole patterns for perforated plate grain sieves: round or square depending on the grain sizes and shapes it will measure. In addition, perforated sieves for special purposes such as shaped holes, wet washing, very small openings and for use with specialize equipment are available.
Specification of Sieving Screens:
| round hole | plate thickness 0.4-6.0mmhole size: 1.0-25mm center to center distance: 3-34mmopening rate:23%-49% |
| square holes | plate thickness 0.8-3.0mmhole size 3.0-50.0mmcenter to center distance:5.0-100.0mmopening rate:16%-64% |
| Slot holes round ends | plate thickness:0.5-3.0mmhole size :1.0x1.0mm - 10 x 45mmcenter to center distance: 4.0 X6.0 - 20 x 60mmOpening rate:18%-76% |
| Slot holes | plate thickness 0.5-3.0mmhole size 1.0X10mm-10x 45mmCenter to center distance: 7.0X1.4-20X60mmopening rate:18%-76% |
Technical Parameters of Framed Sieves:
| Construction | Stainless Steel 304 |
| Frame Shape | Square |
| Specifications(W*L*H) | ♦ 500mm*750mm*100mm(19.7"*29.5"*3.9") ♦ 500mm*500mm*100mm(19.7"*19.7"*3.9") |
| Frame Thickness | 1mm |
| Aperture | 1-150mm |
| Hole Shape | Square,round |
| Production Technology | Punching/perforated |
Bolhes Test Sieve Co.