What is a laser head?

The laser cutting head is a critical component of the laser cutting system, responsible for focusing high-power laser beams onto an extremely small spot to achieve precise material cutting. The design of the laser cutting head directly influences cutting quality, efficiency, and the overall performance of the system.

The laser cutting head is primarily composed of the following components:

√ Focusing Lens

Typically made of high-quality optical glass or synthetic materials, it focuses the laser beam into an extremely small spot. The quality and cleanliness of the focusing lens significantly affect cutting performance.

√ Protective Lens

Positioned in front of the focusing lens, it prevents dust, spatter, and other contaminants from reaching the focusing lens. Regular replacement of the protective lens extends the service life of the focusing lens.

√ Gas Nozzle

In certain applications, an auxiliary gas (such as oxygen, nitrogen, or compressed air) is blown through the nozzle into the cutting area to remove slag and improve cutting speed and quality.

√ Cooling System

To maintain stable operating temperatures for internal components—especially for high-power lasers—an effective cooling mechanism is required, typically achieved via water cooling or other cooling media.

√ Position Sensor

Some advanced laser cutting heads are equipped with an automatic focusing function that adjusts the focal position according to material thickness changes, ensuring optimal cutting results.