Fiber laser marking machine is capable of marking plastic products. The output power of fiber laser marking machine is generally not high. As long as the parameters are adjusted properly, the laser will only evaporate a thin layer of plastic surface without burning out the plastic itself. But it is only suitable for some plastics. If all the materials are non-metallic, it is recommended to use a carbon dioxide laser marking machine for engraving. On the other hand, laser cutting machines are used in the industry to cut plastic, and it is difficult to avoid melting, yellowing, and other phenomena. Of course, this is a digression.
Ordinary plastics are fine, but you can try them out a few more times yourself. First, set the power, speed, and frequency to the middle values, gradually increasing and decreasing. If you want to deepen and darken, the power is usually increased and the speed and frequency are gradually decreasing. However, plastic is prone to foaming, so it depends on the specific material of your plastic. You can only slowly try it yourself. Adjust the power and frequency to five different values, and adjust the speed to five hundred values. Each time you adjust, fix two parameters and only adjust one parameter.
Can the markings on plastic with fiber laser marking machine be erased? Generally not, laser marking is long-lasting and cannot be removed unless the surface is scraped off. So using a laser marking machine to mark the production date and anti-counterfeiting markings is still very useful.