How to choose a laser marking machine, fiber laser marking machine or CO2 laser marking machine

Fiber laser marking machine main for metal and some plastic.

The laser beam is 1064nm, The energy of this wavelength can be absorbed by almost all metals, resulting in extremely high temperature energy on the metal surface. This energy immediately oxidizes and evaporates the metal surface, and then produces traces. At the same time, this laser can also be absorbed by the opaque plastic and generate high temperature, which burns to form traces.

CO2 laser marking machine main for non-metal.

This laser beam is 10.64um, it can be absorbed by almost all non-metals, such as plastic, wood, stone, leather, glass and so on.

But it can't works on metal, so if you want to mark logo on metal, this laser won't meet your requirement.