Gyratory Sifter Screen Deck in 304 Stainless Steel (AISI 304 (1.4301)) is used for separating granules, pellets and powders on rectangular gyratory (tumbler) sifters, where tensioned mesh decks move in a flat circular motion that spreads product thinly for accurate cuts. The alloy gives good general corrosion resistance in atmosphere and fresh water and is essentially non-magnetic (annealed), with a practical service limit of approx. +450 °C continuous.
Alloy Properties
| Grade designation | AISI 304 (1.4301) |
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| Magnetic response | Essentially non-magnetic (annealed) |
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| Service temperature | approx. +450 °C continuous |
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| Corrosion characteristic | Good general corrosion resistance in atmosphere and fresh water |
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Specifications of Gyratory Sifter Screen Deck Available in 304 Stainless Steel
| Mesh count | Wire diameter (mm) | Aperture (mm) | Micron rating (u00b5m) | Open area (%) | Deck (mm) |
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| 8-Mesh | 0.710 | 2.465 | 2465 | 60.3 | 1000 u00d7 2000 |
| 20-Mesh | 0.400 | 0.870 | 870 | 46.9 | 1000 u00d7 2000 |
| 50-Mesh | 0.220 | 0.288 | 288 | 32.1 | 1500 u00d7 3000 |
| 100-Mesh | 0.100 | 0.154 | 154 | 36.8 | 1500 u00d7 3000 |
Where 304 Stainless Steel Gyratory Sifter Screen Deck Is Used
- Fertilizer & chemicals: granule grading into on-size, oversize and fines.
- Plastics: pellet scalping and dedusting.
- Food ingredients: sugar, salt, grain and coffee sifting.
- Minerals & glass: frac sand, silica and glass-bead classification.
Ordering Gyratory Sifter Screen Deck in 304 Stainless Steel
- Deck size & make: 1000 × 2000 to 1500 × 3000 mm, matched to the sifter model.
- Mesh by deck: 8–100 mesh, coarse on top and fine at the bottom of the stack.
- Tensioning & cleaning: Hook-strip or pre-tensioned frames, with ball trays under fine decks.
Mistakes to Avoid with Gyratory Sifter Screen Deck
- Running slack decks, which wear and lose cut accuracy.
- Installing decks in the wrong order in a multi-deck stack.
