Photo-etched filter discs
Locate the aperture field concentrically within the outside diameter.
Product detailsDrawing-based manufacturing
Etched and electroformed screens
Kaifil manufactures photo-etched stainless steel screens and electroformed nickel screens as flat foils, discs and patterned OEM components. Custom aperture fields, solid borders and mounting features are integrated into the finished outline.
- Stock thickness
- 0.01–2.5 mm
- Precision apertures
- 0.1 mm
- Materials
- 304 / 316L / Ni
Metal filtration componentsPrecision screen and filter-disc constructions
Construction
Manufacturing processes
- Product formsFlat foils use a solid mounting border; discs add outside and inside diameters with a seating land. Patterned OEM parts register multiple opening zones and locating features to one finished contour.
- Precision aperturesPair the opening with pitch, minimum metal ligament and thickness. Identify the measured face and any taper so the active field keeps its intended orientation after mounting.
- Manufacturing processesPhoto-etching removes patterned sheet metal; electroforming builds a metal screen on a shaped mandrel. These processes produce precise openings, including tapered profiles, with a defined working face and active screening area. Electroformed nickel configurations include 0.04 mm (40 µm) apertures.
- Materials and connections304/316L stainless steel and electroformed nickel cover different process-media requirements. Frames, backing and clamping lands support thin screens. Optical aperture inspection, dimensional checks and protected packaging preserve the finished geometry.
- Pattern and mounting registrationDimension the active field, solid border and locating features from common datums. The aperture drawing and installation drawing use the same revision and face orientation.
01Product forms
02Precision apertures
03Manufacturing processes
04Materials and connections
05Pattern and mounting registration
Choose the manufacturing route and its material together
Photo-etching removes selected regions from a metal sheet. Electroforming deposits metal onto a patterned mandrel to build the screen. The etched stainless product and the electroformed nickel product therefore have separate material and construction definitions. Woven nickel cloth is a different structure and belongs to the woven-mesh family.
Specify the opening on the controlled face with pitch, metal ligament and thickness. Where the opening profile is tapered, identify the narrow face and the required orientation. The precision-process guide compares manufacturing routes; the filtration-rating guide explains how opening geometry connects to a specified retention test.
Preserve the aperture field through handling and installation
A fine foil needs a defined mounting land and support arrangement. Locate the active field inside the clamping border, and keep fixing holes and alignment features tied to the outside contour. The backing and frame support the thin screen while leaving the required flow area exposed.
Handle the screen by its solid margins and protect the active field during assembly and transport. Check the field again after the specified forming or joining steps. Cleanliness, flatness, edge condition and supported seating all contribute to preserving the drawing-defined aperture in the finished part.
Select by material, aperture and installation
Choose the construction for the fluid, particle load and installation.
| Construction | Application and fit | Confirm first | Find a product |
|---|---|---|---|
| Flat precision screens and foils | The aperture field must fit a flat equipment window, small instrument passage or replaceable screen holder. | Outline, active field, aperture and pitch, foil thickness, free span, support and mounting edge. | Filter matching products |
| Precision filter discs | A fine screen seats in a round port, housing, cap or compact strainer assembly. | OD/ID, aperture field diameter, sealing land, controlled face, orientation and flatness. | Filter matching products |
Photo-etched foil, filter discs and electroformed nickel screens
Choose by finished form
Precision screen and filter-disc constructions
Photo-etching removes patterned sheet metal; electroforming builds a metal screen on a shaped mandrel. These processes produce precise openings, including tapered profiles, with a defined working face and active screening area. Electroformed nickel configurations include 0.04 mm (40 µm) apertures.
Etched and electroformed screens
Find a product
3 products
Photo-etched foil screens
Divide the sheet into an active aperture field, a solid perimeter and locating features.
Product details
Electroformed nickel screens
Electroformed nickel screens are deposited around a patterned tool to create thin, repeatable aperture fields.
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Clear filters
Specify the complete aperture field
Define the measuring face, complete pattern, material thickness and mounting support together. Add the active field, solid border, locating datums and inspection requirements to the controlled drawing.
Aperture at the working face
Photo-etched stainless stock spans 0.01–2.5 mm across foil and sheet constructions. Fine 0.1 mm through-holes use thin foil; aperture, pitch and web width are paired with material thickness.
Pitch, web and open area
State row pattern, center-to-center pitch, minimum metal ligament and required free area. These dimensions define flow passage and the remaining foil structure together.
Material and thickness
Specify 304/316L stainless for etched sheet or the selected electroformed metal, commonly nickel, with corrosion, temperature and cleaning conditions.
Installed geometry
Provide flat outline or disc OD/ID, active field, solid border, fixing holes, orientation and available backing support.
Service and cleaning
Describe fluid, particles, operating flow, differential pressure, backwash or manual cleaning, and handling that keeps the foil free of creases and abrasive contact.
Drawing and acceptance
Mark aperture and pattern-position tolerances, measuring face, sampling locations, surface-defect criteria and protective packaging.
Accept the fine opening as part of a supported component
| Control | Photo-etched stainless | Electroformed nickel | Assembly check |
|---|---|---|---|
| Material route | Openings removed from specified sheet | Screen built by metal deposition | Identify the actual metal and thickness |
| Working opening | Measure on the defined etched face | Measure on the defined deposited face | Keep taper orientation with the drawing |
| Pattern registration | Aperture field tied to sheet contour | Aperture field tied to formed outline | Align field, border and locating features |
| Thin-screen support | Solid land and backing layout | Solid land and backing layout | Check contact, flatness and clear flow area |
Etched and electroformed screens
Applications
Choose the construction for the fluid, particle load and installation.
Instrument inlet protection
Thin inserts protect sensor and dosing passages. Define the active field, mounting land, fluid and access for cleaning.
Compact filter discs
A circular screen seats in a removable port, with a solid sealing band around the active field and backing beneath the foil.
Liquid and slurry screening
Repeated fine apertures separate particles in liquids and slurries. Configure opening geometry, exposed area and support for flow, pressure drop and cleaning.
Patterned OEM components
Integrate multiple opening zones, shaped features and mounting references in a single drawing-defined metal part.
Inspection built around the controlled aperture
Acceptance should follow the drawing and a measurement plan that can be repeated for samples and production lots.
01Aperture fieldMeasure the controlled opening at specified locations across the active field, including edges and transitions between pattern zones.
02Ligaments and registrationCheck pitch, minimum ligament width, active-field position and solid mounting margins against the finished outline.
03Foil and surfaceBefore assembly and packing, check flatness, tears, creases, blocked openings, chemical residues and edge condition.
04Supported final inspectionThe backing and frame distribute clamping loads while preserving active flow area. With the fine screen installed, inspect backing contact, clamping lands, aperture size and field position in the final configuration.
Related products
Photo-etched foil screens
Flat stainless foil with a repeated aperture field and drawing-defined outside contour. Compare thickness, aperture, ligament and mounting margin as one design.
Photo-etched filter discs
Circular precision screen with an active field and solid sealing band for a compact seat or port.
Electroformed nickel screens
Nickel screen deposited to a defined aperture pattern. Specify the controlled face, thickness and compatibility separately from etched stainless.
Etched and electroformed screens
Technical resources
Technical guide
Etched, laser-cut or electroformed screens
Compare the material-removal and metal-deposition routes with laser cutting.
Etched, laser-cut or electroformed screens→Technical guide
Filter rating, aperture and beta ratio
Define aperture geometry and the test basis behind a particle-retention requirement.
Filter rating, aperture and beta ratio→How to specify a custom metal filter
Connect the fine-screen drawing with mounting support, operating conditions and acceptance.
How to specify a custom metal filter→Etched and electroformed screens
Questions before ordering
How do photo-etching and electroforming differ?
Photo-etching removes metal from sheet; electroforming builds metal on a patterned mandrel. Specify etched stainless or electroformed nickel by its own material, thickness, opening geometry and installation.
Which face controls the aperture?
The drawing names the measuring face. For a tapered opening it also identifies the narrow face and widening direction, linked to the intended feed and cleaning orientation.
What supports a thin precision screen?
A defined solid clamping border, backing and frame distribute mounting loads and support the active field. Record their contact zones and the remaining exposed area.
How is the active field protected during assembly?
Use solid margins for handling, protect the screen from creasing, and keep the patterned surface clear of abrasive contact. Inspect openings and flatness after forming, joining and installation.
What belongs on a precision-screen drawing?
Material and thickness, outside contour or disc OD/ID, opening and pitch, minimum ligament, active field, solid borders, measuring face and mounting datums belong on one controlled drawing.
Related products and guidance
Technical enquiry
Define the dimensions, media, joints and inspection records before confirming the order.