Etched Micro-Slot Filter Screen is used for filtering through precise micro-slots etched into thin metal foil, which give more open area than round holes of the same width and resist blinding by flat or fibrous particles. Photo-chemical machining to drawing (ISO 2768-f) is the reference cited for it on drawings, datasheets and purchase orders.
What Photo-chemical machining to drawing (ISO 2768-f) Means for Etched Micro-Slot Filter Screen
The dimensions in the table below are supplied to suit Photo-chemical machining to drawing (ISO 2768-f). Where the standard sets requirements for the finished appliance, device or system, compliance testing of that assembly stays with its manufacturer; we supply the metal mesh part to the drawing and can provide material certificates and dimensional reports with the shipment.
Etched Micro-Slot Filter Screen Dimensions
| Size | Hole diameter (mm) | Pitch (mm) | Thickness (mm) | Open area (%) | Slot (mm) |
|---|---|---|---|---|---|
| Slot 0.05 | 0.05 | 0.15 | 0.05 | 18 | 0.05 u00d7 1.0 |
| Slot 0.10 | 0.10 | 0.25 | 0.10 | 24 | 0.10 u00d7 2.0 |
| Slot 0.20 | 0.20 | 0.40 | 0.20 | 30 | 0.20 u00d7 3.0 |
Specifying Etched Micro-Slot Filter Screen Beyond the Standard
- Slot width: 0.05–0.2 mm — the width, not the length, sets particle retention.
- Slot length & pattern: Longer slots raise open area; staggered rows keep the sheet stiff.
- Foil: 0.05–0.2 mm SS316L, with slot width at least equal to foil thickness.
When Etched Micro-Slot Filter Screen Is Not the Right Choice
Not for coarse straining, where punched perforated sheet is cheaper.
