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Applications Laser marking

High-quality marking

Permanent, high-contrast marks on stainless steel, titanium and glass that survive passivation, autoclaving and cleaning, without creating corrosion sites.

Medical device marked with a femtosecond laser

[value] cycles

Autoclave cycles with no loss of contrast.

0

Corrosion sites after passivation testing.

[value] mm/s

Marking speed for a [size] UDI code.

From problem to process

A mark has to last as long as the part. Cleaning should not erase it.

  1. 01 · Problem

    Marks that fade or corrode

    Nanosecond marking melts and oxidises the surface. On medical instruments and implants these marks can fade after passivation or autoclaving, and the melted zone can start to corrode.

  2. 02 · Requirement

    What the process needs

    • High contrast that survives cleaning and sterilisation
    • No melting, oxidation or corrosion sites
    • Readable 2D and UDI codes at small sizes
    • Marking on curved and reflective surfaces
  3. 03 · Process

    Structure the surface, don't burn it

    Femtosecond pulses create a fine structure on the surface that absorbs light and appears black, at any viewing angle. The material is not melted, so the protective layer stays intact.

Why the architecture fits

Compact laser head

Fits into marking stations and automated lines with limited space.

Passive air cooling

No chiller, so marking stations stay compact and quiet.

Stable pulse energy

Consistent contrast from the first code to the last.

Simple integration

Standard interfaces connect to marking software and line controllers.

Evidence

Results from the application lab

Microscope images from LITILIT test runs. Every sample lists its material, thickness and magnification.

[Microscope image: black mark on stainless steel]
Black marking on stainless steel [Material], [thickness] mm, [value]× magnification
[Photo: UDI code after autoclave testing]
UDI code after [value] autoclave cycles [Material], [thickness] mm, [value]× magnification
Case study

UDI marking that passes validation

[Customer] validated femtosecond marking for [device type] and replaced their nanosecond process. Here is the test data.

Read the case study

Typical process window

Starting parameters from our lab. Your material, thickness and design will move them, so we confirm every number on your own samples.

Materials
Stainless steel, titanium, glass, polymers, [others]
Mark types
Black marking, UDI, 2D codes, logos
Contrast
[value]
Corrosion testing
Passed [standard]
Recommended wavelength
1030 nm (IR)
Recommended laser
INDYLIT 10

Lasers for this application

The laser we recommend for this process.

INDYLIT 10 laser, view 1INDYLIT 10 laser, view 2INDYLIT 10 laser, view 3INDYLIT 10 laser, view 4

INDYLIT 10

10 W and up to 100 µJ pulses for high-contrast black marking of metals.

  • 380 fs pulses
  • Up to 2 MHz
  • Passively air cooled

View INDYLIT 10

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Send us a part. We'll mark it and test it.

Ship samples to our Vilnius application lab. We mark them, run cleaning tests on request and send back the parts with photos and parameters.

Discuss your application with an engineer.

Tell us the material and the result you need. A laser engineer replies within [response time].

Buying for production?

Ask about lead times, volume pricing, supply capacity and long-term availability.

Request a quote
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