Define the code content
The data to encode determines the number of modules. At a fixed size, more modules mean smaller modules. Useful data and reading capabilities must be defined together.
All applicationsMiniature DataMatrix on
DIRECT TRACEABILITY · MOPA 20 W LASER
Miniature DataMatrix on
stainless-steel capsule.
A 2 × 2 mm DataMatrix directly marked on the bottom of a stainless-steel capsule using a MOPA 20 W laser.
NWS Laser / APPLICATION02
This application concerns the marking of a miniature 2 × 2 mm DataMatrix on the bottom of a stainless steel capsule. The code concentrates the information in a reduced area, directly on the part.
Marking is performed with a MOPA 20 W laser source. Pulse duration and repetition rate are adjusted to control the laser–surface interaction. For this miniature format, capsule positioning and module definition require particular care.
- Code format
- 2 × 2 mm
- Material
- Stainless steel
- Laser source
- MOPA 20 W
A SMALL CODE, VALIDATION REQUIRED
Two millimetres per side,
an application to master.
Control the marking
Fixturing must stabilise the capsule and present its bottom at the correct working distance. MOPA parameters are tuned on the actual part according to stainless-steel finish and desired contrast.
Validate readability
Readability must be verified with the intended camera or reader, its illumination, and the actual part positioning. A photo of the code does not replace validation under production conditions.
APPLICATION STUDY
Start from your capsule,
not a theoretical setting.
Provide the part bottom, surface condition, data to encode and reading conditions. The NWS Laser team will prepare a test tailored to your application.