Overview
Stainless is the metal laser marking does best — clean, permanent marks that pass corrosion and washdown requirements without breaking the passive layer when done right.
Why Fiber & MOPA Work on Stainless
A fiber beam at 1064 nm marks stainless by annealing (a smooth black oxide), etching contrast, or engraving depth. A MOPA source tunes the pulse for a corrosion-safe black anneal that stays intact through cleaning — the reason medical and food-equipment makers specify it.
Built to Last
The mark is in the steel surface itself, not on top, so it won’t smear, peel or wash off, and it holds up to heat, solvents and years of handling.
Specs That Matter
Fiber/MOPA 1064 nm, 20W–100W, up to 10,000 mm/s, ±0.002 mm repeat accuracy, fields 100–300 mm. Black-anneal favours MOPA; deep IDs favour higher power.
How to Mark Stainless
- Load the part and set the focus distance for the lens.
- Choose anneal, etch or engrave and set pulse, speed and frequency.
- Run a sample, check contrast and corrosion-safe finish, then save the recipe.
- Fix the jig for repeat positioning and start the batch.
- Scan the codes and log first-article approval.
Applications
Medical instruments and devices, food and beverage equipment, fasteners and tools, nameplates and serials, automotive stainless parts.
CE Compliance
CE-marked, with conformity documentation available on request. We never claim SASO, SABER, GCC or UKCA we do not hold.
Getting It Right Before You Buy
Send us a stainless part. We’ll mark it — anneal or etch — show you the finish, then quote against it.
Request a Quote · Download the Spec Sheet
Explore: Metal Laser Marking. Related: Fiber Laser Marking.
1-year warranty; installation, training & after-sales support available.