Vibro Sifter Screen in 304 Stainless Steel (AISI 304 (1.4301)) is used for grading and de-lumping powders and granules on round vibratory sifters with tensioned stainless mesh screens in sanitary gasketed frames. 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 Vibro Sifter Screen Available in 304 Stainless Steel
| Size | Frame diameter (mm) | Frame height (mm) | Mesh count | Aperture (mm) | Frame |
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| 20 in 30-mesh | 500 | 50 | 30-Mesh | 0.547 | SS316L, gasketed |
| 30 in 40-mesh | 750 | 60 | 40-Mesh | 0.385 | SS316L, gasketed |
| 36 in 80-mesh | 900 | 60 | 80-Mesh | 0.177 | SS316L, gasketed |
| 48 in 120-mesh | 1200 | 80 | 120-Mesh | 0.122 | SS316L, tension ring |
Where 304 Stainless Steel Vibro Sifter Screen Is Used
- Pharmaceutical: granule sizing before tableting and capsule filling.
- Food & dairy: sifting flour, sugar, milk powder and spices.
- Chemicals & pigments: scalping and safety screening of powders.
- Plastics & ceramics: resin and glaze sieving.
Ordering Vibro Sifter Screen in 304 Stainless Steel
- Machine size: 20, 30, 36 or 48 in frame matched to the sifter make.
- Mesh: 10–200 mesh; 316L cloth with a test certificate for GMP batches.
- Frame & seal: Gasketed SS316L ring or tension ring, with silicone or EPDM gasket.
Mistakes to Avoid with Vibro Sifter Screen
- Running a torn screen, which lets oversize or metal fragments into product.
- Using an un-certified cloth where the GMP file demands a mesh certificate.
