Laser Engraver for Metal: Surface Marking vs Deep Engraving
Summary
Choose a metal laser engraver by the finish you need and the metal's surface. Marking a coating, engraving bare metal, and removing material for a deep recess are different jobs. A fiber laser can cover surface marking and deeper engraving, but achievable depth depends on the machine, material and processing parameters.
Which metal engraving job are you buying for?
| Job or material | What to compare | Important distinction |
|---|---|---|
| Anodized aluminum or coated metal | The specific machine's supported surface-marking materials | xTool lists these surfaces for its P2 CO2 laser; that is not a claim that it can deep-engrave bare metal. |
| Stainless steel with a marking coating | Whether the manufacturer requires a coating | xTool's P2 FAQ requires a spray coating for stainless-steel engraving. |
| Bare-metal marking, including brass and copper | Fiber-laser compatibility for the particular metal | A machine's ability to mark a coating does not establish its bare-metal capability. |
| Deep engraving or relief | Material-specific depth examples and processing time | The F2 Ultra's quoted 1 to 2 mm relief applies to officially recommended materials, not every metal. |
Surface marking, deep engraving or cutting?
For a logo or identification mark, compare the surface finish and supported materials. For a recessed design, ask for a depth example on the same metal, rather than choosing by wattage alone. xTool's F2 Ultra FAQ says relief depth varies with the height map, material properties and parameters.
If you need to cut a part out of sheet, compare cutting capability separately. The related metal-cutting guide below explains the distinction between a desktop engraver and a dedicated sheet-metal cutter.
For surface marks, CO2 sometimes works
On some metals, a CO2 machine can handle identification marks. xTool says its P2 CO2 laser can engrave anodized aluminum and coated metals, and stainless steel after a spray coating. Marking bare metal directly, or working in brass and copper, takes a fiber laser.
Depth comes from stacking energy
xTool's parameter guide for the F1 Ultra, which pairs a 20W blue diode with a 20W fiber laser, gives the basic rule: higher power, slower speed, and more passes all engrave deeper. On that machine, passes range from 1 to 10 for engraving and 1 to 10,000 for cutting. The F1 Ultra Q&A lists brass and copper as metals that can be embossed.
The F2 Ultra's 1 to 2 mm relief figure applies to materials xTool officially recommends.
Sources
- xTool Support — The Processing Parameters for xTool F1 Ultra
- xTool Support — xTool F1 Ultra Q&A
- xTool Support — xTool F2 Ultra Q&A
- xTool Support — xTool P2 FAQs
Specs and prices are as published on these pages on the date above and can change; check the manufacturer or retailer before you buy.