Overview

A metal mesh etching service produces filters and screens from solid sheet instead of woven wire. Photochemical machining coats the metal with resist, exposes it to UV through aperture artwork, and dissolves the open areas in a matched etchant, so the finished mesh is one continuous piece of material. There are no woven nodes to trap debris, no loose strands to shed into the flow, and no crimped intersections to distort the aperture — every opening is the same shape at the same pitch across the whole panel. Stock runs from 0.05 mm to 1.2 mm in stainless steel 304/316L, nickel 200, copper, brass and titanium.

For a filter or screen buyer, that geometry is the point. Aperture size and open area are set by artwork rather than by wire diameter and weave count, so a metal mesh etching service can hit a specified micron rating and pressure drop without hunting for a weave that almost fits. Parts leave the line flat, burr-free and dimensionally stable, ready for forming into discs, cups or domes, or for framing and welding into a housing. Repeat orders run from the same film, so the tenth batch screens the same as the first — a reliability that woven mesh, with its wire tolerance and weave drift, rarely matches.

Parameter Window

• Available Materials: stainless steel 304/316L, nickel 200, copper C11000, brass C2680, titanium Grade 1/2
• Material Thickness Range: 0.05–1.2 mm
• Tolerance: aperture ±0.02 mm or ±8% of aperture size, whichever is greater; pitch ±0.02 mm; outline ±0.05 mm
• Minimum Feature: 0.05 mm aperture on 0.05 mm foil; web between openings ≥ 0.08 mm
• Surface Options: passivation, electropolishing, disc and cup forming, spot-welded frames, support backing, slitting
• Compliance: ISO 9001 process control, RoHS/REACH material traceability

Manufacturing Process / Workflow (8 Steps)

1. Spec Review — Translate the filtration or screening duty into aperture, open area and thickness, then check the geometry against stock limits.
2. Material Selection — Pick alloy for the media and environment: 316L for corrosive fluids, nickel for conductivity and heat, titanium for aggressive chemistry and low weight.
3. Cleaning & Lamination — Degrease the sheet and laminate dry film resist so fine webs sit on a clean, bubble-free surface.
4. UV Exposure — Expose aperture artwork registered to the sheet edge, holding pitch and position across the full panel.
5. Development — Wash out unexposed resist to open every aperture, then inspect for blocked webs or pinholes in the resist.
6. Etching — Spray matched chemistry from both sides; etch rate, temperature and line speed hold aperture size and open area to spec.
7. Stripping & Secondary Ops — Strip and neutralize, then form discs or cups, weld frames or support rings, and slit to final width.
8. Inspection & Packaging — Verify aperture, open area, flatness and edge condition, then pack flat with protective interleaving.

Core Advantages

1. One-piece mesh, no woven nodes: Etched screens are continuous sheet, so there are no intersections to trap particles or strands to break loose downstream.
2. Uniform aperture and open area: Every opening etches at the same rate, giving consistent flow and capture across the full filter area.
3. Flat and burr-free: Chemical cutting leaves the sheet planar and edge-clean, so screens seat evenly against seals and gaskets.
4. Aperture set by artwork: Micron rating, open area and pattern are design variables, not catalogue limits of available weaves.
5. Repeatable production batches: The same film and locked etch parameters reproduce the screen batch after batch, with traceable records.
6. Secondary operations in line: Forming, framing, welding and slitting turn the etched sheet into a finished filter or screen assembly.

Typical Applications

• Pump and valve screens: Inline screens that protect pump impellers and valve seats from pipeline debris.
• Process filtration screens: Uniform aperture screens for chemical, food and water treatment stages that demand repeatable open area.
• Separator and dryer screens: Flat etched screens for centrifugal separators and drying equipment where woven mesh distorts.
• Regulator and meter screens: Small precision screens that protect regulator diaphragms and flow meter sensors.
• Guard and safety screens: Sturdy one-piece guards for instrument openings and vents that must resist poking and vibration.
• Acoustic and dust screens: Aperture-controlled panels for enclosures that balance airflow, dust capture and sound transmission.

Design Notes & Process Considerations

1. Match aperture to stock: Keep through-apertures at or above material thickness so the screen etches cleanly and webs stay strong.
2. Open area versus strength: High open area raises flow but softens the sheet; add a border land or support ring where clamping loads apply.
3. Woven-to-etched conversion: When replacing woven mesh, specify equivalent aperture and open area rather than mesh count, since etched pitch is absolute.
4. Support and framing: Say whether the screen is clamped, welded into a frame or backed by a coarser support mesh, and leave land for it.
5. Cleanliness: For fluid paths, call out passivation or electropolishing and oil-free handling so no residue reaches the media.
6. Packaging and flatness: Screens ship flat with interleaving; stack marks on fine apertures can shift the effective open area before installation.