Electroformed Nickel Micro Sieve in 304 Stainless Steel (AISI 304 (1.4301)) is used for precision sieving of very fine powders and particles from 5 to 30 µm with electroformed nickel foil sieves whose holes are grown to tight, uniform tolerances. 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 Electroformed Nickel Micro Sieve Available in 304 Stainless Steel
| Aperture (mm) | Frame diameter (mm) | Frame height (mm) | Aperture tolerance (u00b5m) | Foil thickness (mm) | Hole shape |
|---|
| 0.005 | 75 | 25 | u00b12 | 0.010 | Square |
| 0.010 | 75 | 25 | u00b12 | 0.015 | Square |
| 0.020 | 200 | 50 | u00b12 | 0.020 | Round |
| 0.030 | 200 | 50 | u00b12 | 0.025 | Round |
Where 304 Stainless Steel Electroformed Nickel Micro Sieve Is Used
- Pharmaceutical R&D: particle sizing of inhalation powders and APIs.
- Metal & ceramic powders: fine cut checks for additive manufacturing powders.
- Pigments & toners: oversize checks below woven-mesh limits.
- Environmental labs: microplastic and sediment fractionation.
Ordering Electroformed Nickel Micro Sieve in 304 Stainless Steel
- Aperture: 5–30 µm holes, square or round, per ISO 3310-3.
- Frame: 75 mm for micro work; 200 mm to fit standard sieve stacks.
- Sieving method: Use wet or air-jet sieving — dry tapping blinds fine foil sieves.
Mistakes to Avoid with Electroformed Nickel Micro Sieve
- Brushing the foil, which tears it.
- Overloading the sieve so powder agglomerates on the surface.
