Locate the aperture field concentrically within the outside diameter. The unperforated rim provides a continuous sealing and clamping land. Dimension the centre hole or locating notch from the same datum as the active field. Seat, gasket and backing define the supported diameter; specify flatness and contact width on the installed-part drawing.
Etched and electroformed screensShare a drawing, reference sample or application requirements to discuss the configuration.
Photo-etched filter discs — Product view
A photoresist pattern defines the openings in a solid metal sheet. Chemical etching removes metal through the patterned areas and forms the aperture walls. Round holes, slots and shaped openings share a continuous metal surface between features. Specify the working face, the exit profile, sheet thickness and remaining ligament width as one geometry.
Locate the aperture field concentrically within the outside diameter. The unperforated rim provides a continuous sealing and clamping land. Dimension the centre hole or locating notch from the same datum as the active field. Seat, gasket and backing define the supported diameter; specify flatness and contact width on the installed-part drawing.
304 and 316L stainless steel provide corrosion-resistant foil options; plain steel is a separate material branch. The etched-sheet series uses 0.1–1.0 mm stock and a maximum panel layout of 500×600 mm. Fine-opening configurations include 0.03 mm apertures. The fabrication drawing pairs the chosen aperture with its stock thickness, pitch and ligament; each configuration has its own complete dimensions.
Measure aperture at the identified face, pitch, ligament width, sheet thickness and the unperforated border. Inspect flatness, etched wall profile, unintended openings and edge integrity. Locate the active pattern relative to the mounting features so the flow path and peripheral seal are defined together.
The flat etched coffee-disc configuration pairs a 62 mm outside diameter with 0.2 mm sheet thickness. Record both dimensions on the same component drawing, together with the active aperture field and seating border. For photochemically machined filter discs, round holes are dimensioned by clear diameter; slots use clear width and total length. The remaining metal bridges and the perimeter locate the pattern within the finished outline.
| Dimension | Value | Unit | Applicable construction |
|---|---|---|---|
| Coffee-disc outside diameter | 62 | mm | Etched coffee disc paired with 0.2 mm sheet thickness. |
| Same disc: sheet thickness | 0.2 | mm | The same 62 mm outside-diameter coffee-disc configuration. |
| Stock thickness | 0.1–1.0 | mm | Starting sheet thickness in the etched-stock series. |
| Maximum process-sheet size | 500×600 | mm | Maximum stock-panel X × Y; the finished disc has its own outside diameter. |
| Fine-aperture opening | 30 | µm | Clear opening of the fine-aperture branch; thickness, pitch and ligament are specified as a complete pattern. |
| Supply item | Order basis |
|---|---|
| Production lead time | 2–3 weeks after order and drawing confirmation. |
| Trial orders | Small trial quantities for fit and process evaluation. |
| Regular production orders | 50 pieces or US$3,000 per order. |
| Quotation basis | Material, finished dimensions, filter construction, connections and quantity. |
| Parameter | Specification | Notes |
|---|---|---|
| Construction | Photo-etched metal; continuous sheet with patterned openings | — |
| Stock thickness | 0.1–1.0 mm | Starting sheet thickness in the etched-stock series. |
| Maximum process-sheet size | 500×600 mm | Maximum stock-panel X × Y; the finished disc has its own outside diameter. |
| Fine-aperture opening | 30 µm | Clear opening of the fine-aperture branch; thickness, pitch and ligament are specified as a complete pattern. |
| Material options | 304 / 316L stainless steel; plain steel | — |
| Coffee-disc OD × sheet thickness | 62×0.2 mm | Finished outside diameter and sheet thickness of the same etched coffee-disc configuration. |
Include these details when discussing your requirements.
Defined hole geometry can suit small devices where a wire crossing would obstruct a port.
A patterned disc allows a solid sealing perimeter around a controlled aperture field.
Compare etched foil with electroformed nickel and woven cloth for thickness, stiffness and corrosion service.
Etching removes metal through the sheet and along the feature walls. Thickness, working-face opening, exit profile and remaining ligament form a single dimensional specification.
Etched media have openings cut into a continuous sheet. Woven media have interlaced wires, with count and wire diameter defining the structure.
Explore related products and technical guidance.
Define the dimensions, media, joints and inspection records before confirming the order.
