Overview

A filter screen etching service produces filtration media by photochemical machining: dry-film resist is laminated onto stainless 304/316L, nickel or titanium sheet, exposed through artwork carrying every aperture, slot and solid land, and the unprotected metal dissolves in a matched etchant. Because the pattern lives on film instead of in a punched die, a new aperture layout costs only new artwork, and open area can be tuned zone by zone inside a single blank. Stock runs from 0.03 mm foil to 1.2 mm plate, with aperture diameters from 0.05 mm to several millimetres and open area held to ±2% of the specified value.

The practical value of a filter screen etching service is control. Aperture diameter, web width and open area all sit inside fixed windows, so flow rate, pressure drop and filtration rating repeat from the first sample to the volume lot, and dense pre-filter zones, fine finishing zones and solid mounting tabs can share one part. Chemical removal leaves no burrs, no work-hardened rims and no punch-shear taper, so screens do not shed particles into the media and sheets come off the line flat, ready for frame welding, forming or ultrasonic cleaning before assembly.

Parameter Window

• Available Materials: stainless steel 304/316L, nickel 200, copper C11000, brass C2680, titanium Grade 1/2
• Material Thickness Range: 0.03–1.2 mm
• Tolerance: outline ±0.05 mm; aperture ±0.01 mm or ±5% of aperture, whichever is greater; open area ±2%
• Minimum Feature: 0.05 mm aperture on 0.08 mm foil; web between apertures ≥ 0.1 mm
• Surface Options: passivation, electropolishing, calendering, ultrasonic cleaning, spot-welded frames, protective film
• Compliance: ISO 9001 process control, RoHS/REACH material traceability

Manufacturing Process / Workflow (8 Steps)

1. Aperture & Open-Area Review — Convert the screen drawing to film artwork, check aperture, web and open-area ratio against stock thickness, and confirm filtration rating targets.
2. Material Selection — Match alloy to the media: 316L for corrosive fluids, nickel 200 for conductivity and heat, titanium for aggressive chemistry and light weight.
3. Cleaning & Lamination — Degrease the sheet and laminate dry-film resist under controlled heat and pressure so fine webs sit on bubble-free film.
4. UV Exposure — Expose through high-resolution artwork registered to the sheet edge, holding aperture position across the full panel.
5. Development — Wash out unexposed resist to open every aperture and contour, then inspect webs for pinholes or residual film.
6. Etching — Spray matched chemistry from both sides; time, temperature and line speed hold aperture diameter, web width and open area within tolerance.
7. Stripping & Finishing — Strip resist, neutralize, calender or flatten where needed, then weld frames, slit or form parts to drawing.
8. Inspection & Packaging — Verify aperture size, open area, burr condition and flatness against the approved sample, then pack flat with protective film.

Core Advantages

1. Aperture and open area on target: Etched apertures hold diameter and pitch, so flow rate and filtration rating stay consistent across lots.
2. No tooling cost for new patterns: Aperture layouts are artwork only, so prototypes and revisions skip die cost and tooling lead time.
3. Variable open area in one blank: Dense filtration zones, coarse pre-filter zones and solid mounting tabs coexist on a single screen without assembly.
4. Burr-free, stress-free mesh: Chemical removal leaves no hardened rims or punch taper, so screens flow cleanly and weld or bond evenly.
5. Foil to light plate: 0.03 mm foil through 1.2 mm plate runs on one line, covering fine sieves, filter discs and structural screens.
6. Repeatable filtration media: A filter screen etching service keeps aperture, web and open area inside fixed windows, so first samples match volume lots.

Typical Applications

• Hydraulic and fuel filter screens: Controlled-aperture stainless screens that protect pumps and injectors while holding pressure drop down.
• Air and gas filtration meshes: Fine open-area fields for compressors, burners and instrument air, with solid borders for clamping.
• Pharmaceutical and food sieving screens: Burr-free sieves with precise apertures for particle sizing, sieving and sample preparation.
• Ink and coating filtration screens: Fine slot and hole screens that remove agglomerates without disturbing flow in dispensing systems.
• Plastic melt filtration screens: Nickel and stainless screens with high open area for extrusion and polymer melt streams.
• Laboratory test sieves: Aperture-coded sieve fields with etched labels for repeatable particle analysis.

Design Notes & Process Considerations

1. Aperture versus thickness: Keep through-apertures at least equal to stock thickness; finer openings risk incomplete etch or fragile webs.
2. Web width: Hold webs at 0.1 mm or more in foil and scale up in heavier stock so the screen keeps its shape under pressure.
3. Open area versus strength: Very high open area softens the blank — add border lands or welded frames wherever clamps or welds load the screen.
4. Etch compensation: Sidewalls taper roughly half the etch depth per side, so oversize apertures in artwork when a tight rating window matters.
5. Panel layout: Nest screens on shared frames with common registration marks to cut handling cost and keep unit pricing down.
6. Cleanliness and finishing: Call out passivation, electropolishing or ultrasonic cleaning for sensitive media — a filter screen etching service delivers screens that are already burr-free and ready to install.