Among all core components of a laser cutting machine, the cutting head can be considered a true “workhorse.”
Without timely and proper maintenance, it may not only reduce cutting quality, but also lead to unexpected downtime and even high repair costs.
To help extend the service life of the cutting head and keep it operating at optimal performance, we have prepared a practical Laser Cutting Head Maintenance Guide for daily use.
1. Cleaning
Before performing any maintenance or servicing, it is strongly recommended to clean the cutting head thoroughly.
Remove all dirt and debris to prevent contaminants from entering the cutting head chamber.
2. Airtightness Inspection
Regularly inspect the laser cutting machine head for any air leakage.
If necessary, replace gaskets and sealing rings, which are typical wear parts.
(All spare parts are available in our Taobao store.)
3. Replacement of Wear Parts
If any of the following components are damaged, they must be replaced immediately:
Nozzle.
Ceramic body.
Protective lens.
Sealing rings.
(All listed parts are in stock in our Taobao store.)
4. Electronic Contacts
To ensure the sensor system functions properly, users must keep the following electrical contacts clean:
Nozzle electrode and ceramic components.
Sensors and BNC connectors.
5. Corrosion in the Water Cooling Circuit
To prevent corrosion in the water cooling system, regularly inspect the cooling water for microbial contamination.
(Recommended: once every six months).
If microbial levels exceed the standard, the cooling circuit must be cleaned and the cooling water replaced.
Common Maintenance Issues & Friendly Reminders
Keep the Cutting Head Exterior Clean
Prevent accumulated contaminants from entering the cutting head chamber during part replacement.
Prevent Condensation Caused by Temperature Differences
Adjust the cooling water temperature according to ambient conditions to avoid condensation.
Do Not Use Protective Lenses with Burn Marks
A burnt protective lens will affect optical performance and may cause more serious damage.
Ensure Cutting Gas Purity
Before use, check the gas supply and pipelines for residues, moisture, or oil to prevent lens contamination.
Replace Damaged Sealing Rings Promptly
Defective sealing rings reduce airtightness and increase the risk of internal contamination.
Do Not Use the Lower Protective Lens on Both Sides
Dual-side use may damage the focusing lens protective glass.
Do Not Use Sealant or Tape on the Gas Circuit
Avoid using sealants or adhesive tapes, as contaminants may clog the gas path and cause cutting head failure.
Conclusion
Maintaining a laser cutting machine head is not complicated, but it requires consistency and attention to detail.
Regular cleaning, effective contamination control, and timely replacement of wear parts are essential steps to ensure stable and efficient operation.
Eagle Laser has always advocated the concept of combining equipment usage with scientific maintenance.
In addition to high-quality laser cutting machine equipment, we provide complete spare parts supply and professional technical support, ensuring your production line remains in excellent condition.
If you encounter any issues during cutting head maintenance, feel free to contact Eagle Laser.
We are ready to offer professional advice and one-stop solutions.