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Clean and maintain the cutting head of laser cutting machine

As the core component of the fiber laser cutting machine, the cutting head is a laser output device. It is composed of a nozzle, a focusing lens and a focusing tracking system. To ensure the normal operation of the fiber laser cutting machine, cleaning and maintenance of the laser head has become a top priority. The following are the daily cleaning and maintenance steps of the fiber laser cutting machine cutting head.

Cutting head piece identification

Figure-1 (note: please refer to the actual cutting head model)

Adjust entering screw

The laser can be adjusted at the center point of the nozzle. For the adjustment method, you can paste transparent glue at the nozzle exit position, and then press the spot to remove the transparent glue, as shown in the figure-2. (If the light is not on the center, the cutting will be unstable and has burrs.)


Z axis bellow

After the lower screw is loosened, the Z-axis can be oiled and lubricated.

Z axis upper limit action

After turning on the drive, the cutting head limit block will return to the upper limit.

Lower limit of Z axis function

When the cutting head limit block approaches the lower limit, it will quickly return to the upper limit and return to the set position.

Focus screw

Select the appropriate focus position according to the material thickness and the type of cutting gas.

Protective mirror drawer

There are protective glasses and seals inside. The protective glasses need to be checked every day before starting and wiped clean. The seals must be replaced every three months.

Figure 3 protection mirror drawer decomposition diagram

Maintenance instructions:

Use isotropic alcohol or analytical alcohol to clean the lens. Pay attention to wearing finger cots when holding the lens. Wipe it from one side to the other with a cotton swab.


Tip: If the cutting head sealing ring lost, which will cause cutting instability during cutting, the cutting head capacitance value will change greatly, and it will not work in severe cases.

cutting head





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