The head of laser cutting machine is called cutting head, which consists of focusing lens, protective lens and copper nozzle of cutting head. The protective lens and copper nozzle of the cutting head are wearing parts, which need to be replaced during use, usually once every three months according to the frequency of use;
The laser marking machine head has two vibrating mirrors and a field mirror. Except for man-made damage, it generally does not need to be replaced in normal use.
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