Can Neodymium Magnets Be Engraved With a Laser?
Short answer
Yes. A laser can mark a logo, part number or text into the plating of a neodymium magnet. The key is to mark only the surface of the coating: too much heat can weaken the magnet, and burning through the plating exposes bare metal that can rust. We also offer engraving on custom magnet orders.
Tips for Engraving Magnets Yourself
- Use a fiber laser for metal-plated magnets. It marks nickel cleanly at low power.
- Make light, quick passes. Short exposures keep the magnet well below its 80°C (176°F) working limit for standard grades.
- Mark, don’t cut. Stop once the surface is marked. If you can see dull gray metal under the plating, you’ve gone too deep.
- Hold the magnet in a non-magnetic fixture. Keep it away from steel parts of the laser bed so it doesn’t shift.
- Seal deep marks with clear lacquer if the magnet will see humidity.
Coated Magnets
Epoxy and plastic coated magnets can be laser marked too, but the coating melts and discolors more easily. Test on a spare magnet first.
Prefer It Done for You?
We make custom magnets with your engraving, size, grade and coating. Request a custom quote.