GALVANIZED STEEL - Fiber Mark Laser Settings - Fiber 20W

Specifications and context

Evidence status

Bundled baseline — no community vouch or proof-burn photo attached

Source data reviewed

2026-08-09

Laser source

Fiber (MOPA)

Model

Fiber 20W

Power

70%

Speed

600 mm/s

Frequency

35 kHz

Passes

1

Hatch interval

0.025 mm

Pulse width

Not specified

Production guidance

This GALVANIZED STEEL - Fiber Mark metal record pairs 70% power with 600 mm/s on Fiber 20W, using 1 pass, 35 kHz, 0.025 mm hatch spacing, and no recorded pulse-width override. Compare every listed field with the source, lens, focus method, and material finish on your machine before transferring the recipe.

1. 1. Mark on galvanized (zinc-coated) steel. CAUTION: Zinc fumes are hazardous - use extraction. Source: hispeedlaser.com metals table (2024).
2. 2. Treat this as an unverified baseline, not a production preset. A VERIFIED Parameters Library record requires three independent community vouches; an attached proof-burn image provides additional evidence.
3. 3. Bare metal is unforgiving of focus error: re-zero on the actual work surface rather than the bed, and wipe oils off before marking or the mark will read blotchy.
4. 4. MOPA pulse width is the parameter doing the work here — if the result drifts, adjust pulse width before touching power or speed.
5. 5. Change one variable at a time — power, then speed, then frequency — so you can attribute the improvement when you find it.
6. 6. Record the successful result in the Parameters Library so the next production run is repeatable.

The bundled note for this GALVANIZED STEEL - Fiber Mark recipe is: “Mark on galvanized (zinc-coated) steel. CAUTION: Zinc fumes are hazardous - use extraction. Source: hispeedlaser.com metals table (2024).” The source data was reviewed 2026-08-09; no independent vouch or proof-burn image is attached. Label the scrap test with the adjusted values and keep the accepted result with the production job.