Overview

A nameplate etching service uses photochemical machining to cut graphics, text, apertures and serial numbers out of thin metal rather than printing or engraving them on top. A photoresist mask is exposed with the artwork, developed, and the unprotected metal is dissolved in a matched etchant, so letters and fine lines are formed in the material itself and cannot rub off. Substrates are typically aluminum, stainless steel 304/316L, brass, copper, nickel and titanium, supplied between 0.05 mm and 1.5 mm. Because the process is chemical rather than mechanical, tags leave the bath flat, burr-free and free of the tool marks and heat tint that come with stamping and laser marking, and the same artwork repeats identically from the first sample to the ten-thousandth piece.

Parameter Window

• Available Materials: aluminum (1050/5052), stainless steel 304/316L, brass, copper, nickel, titanium
• Material Thickness Range: 0.05–1.5 mm
• Tolerance: ±0.05 mm on cut profiles, about ±10% of material thickness on etched depth
• Minimum Feature: 0.15 mm line width and 0.3 mm character stroke at 0.2 mm stock
• Surface Options: brushed, mirror, anodized, black oxide, electroplated Ni/Au, adhesive backing, embossed dome
• Compliance: ISO 9001 process control, RoHS/REACH material traceability

Manufacturing Process / Workflow (8 Steps)

1. Artwork Review — Convert customer files to vector artwork, check stroke widths against material thickness, and confirm font, spacing and bleed.
2. Material Selection — Match alloy, temper and finish to the application; aluminum for anodized color, stainless for outdoor durability, brass for premium look.
3. Cleaning & Lamination — Degrease the sheet and laminate dry film resist under heat and pressure so no bubbles sit under fine text.
4. UV Exposure — Expose through high-resolution film with the artwork registered to the sheet edge for panel-level accuracy.
5. Development — Wash out unexposed resist to open the character and contour areas, then inspect for under-developed strokes.
6. Etching — Spray or immerse in chemistry matched to the alloy; etch depth and sidewall quality are controlled by time, temperature and conveyor speed.
7. Stripping & Finishing — Remove resist, neutralize, then brush, anodize, plate or apply adhesive; annealing is available where flatness must be restored.
8. Inspection & Packaging — Verify character legibility, depth, flatness and color against the approved sample, then pack on liner or in trays.

Core Advantages

1. Graphics in the metal, not on it: Etched characters are recessed and filled with paint or left raw, so abrasion, solvent and weather cannot wear the copy away.
2. No tooling cost: Each new part number is a new film, so short runs and frequent revisions stay economical without a stamping die.
3. Burr-free flat tags: Chemical removal leaves no roll-over or burr, so tags sit flush on curved panels and adhesive bonds evenly.
4. Fine detail at small size: Serial numbers, QR codes, warning text and fine rules hold at 0.15 mm line width on 0.2 mm stock.
5. Full-sheet consistency: All tags on a sheet etch at the same rate, so color fill and character depth match across a batch.
6. Material flexibility: Aluminum, stainless, brass and copper run on the same line, letting one order mix substrates without separate tooling.

Typical Applications

• Equipment nameplates: Machine model plates with ratings, warnings and manufacturer data etched into 1.0 mm aluminum.
• Control panel overlays: Function labels and window apertures on brushed stainless for industrial consoles.
• Serial and asset tags: Individually numbered tags etched in panels, then serialized during finishing.
• Brand and logo plates: Deep-etched logos with paint fill for products that must look premium after years outdoors.
• Instrument faceplates: Fine scales, tick marks and units on thin aluminum for meters and analyzers.
• Safety and certification labels: Durable warning plates for machinery exported to humid or corrosive sites.

Design Notes & Process Considerations

1. Stroke width versus thickness: Keep the narrowest stroke at 0.15 mm or 1.5 × material thickness, whichever is larger, or characters will etch unevenly.
2. Etch depth callout: State depth for paint-filled graphics — typically 0.05–0.1 mm — and specify whether the tag is half-etched or through-cut.
3. Color fill: Name the paint system and target color reference; two-pass fill is needed when multiple colors sit closer than 0.4 mm.
4. Adhesive and backing: Specify liner type, adhesive grade and service temperature if the tag is supplied with PSA backing.
5. Flatness and burr: Call out flatness per 100 mm and require burr-free edges when the tag is bonded to a curved housing.
6. Panel layout: Group tags on one sheet with shared registration marks to reduce handling and keep unit cost down.