Many companies use 20w laser marking machines, and the power may decrease after four or five years of use. At this time, the cost of replacing a new laser marking machine may be too high, so how to solve it, in fact, we can replace the laser, put the 20w laser marking machine changed to 30w, let's see the tutorial below. First of all, we first remove the casing of the 20w laser marking machine, and then see the laser. There is a power line on the laser. The power line is divided into positive and negative poles and grounding. Power on, and then unplug the 25-pin interface of the laser control at the back, and there is a yellow fiber optic cable. The top of this cable is a beam combining mirror, which is the laser head. We open the optical path and remove this piece, so that all three places After disassembly, the disassembly of the 20w laser is completed. 30w laser installation, we put the newly purchased laser into the marking machine cabinet and fix it, then put the laser head into the marking machine to fix the optical path, then connect the 24v positive and negative poles to the power supply, and connect the 25-pin control interface to the marking card , thus completing the replacement of the laser. The above is the 20w laser marking machine we introduced to you to change to 30w. This process is actually very complicated. We do not recommend that you replace it yourself. If you need it, you can contact us and we can replace it for you.