Complete Maintenance and Care Guide for Laser Welding Machines
Release Date: January 29, 2026
The maintenance of laser welding machines is a systematic process. Core components such as the cooling system, optical components, electrical system, and operating environment require regular inspection and maintenance. Proper maintenance can extend the service life of the equipment (core components can last more than 100,000 hours).
Recommended Coolant
Clariant Antifrogen N Coolant – 10L
This coolant is used in the laser welding machine cooling system to ensure stable temperature control and prevent corrosion or freezing in the water circulation system.
1. Core Maintenance Principles
- Power off the machine before performing maintenance.
- Close the cooling water system before inspection.
- Laser modules and optical components should be handled by trained personnel.
- Maintenance operations should be performed using professional tools.
- Record maintenance time, content, and equipment status.
2. Periodic Maintenance Plan
Daily Maintenance (5–10 minutes)
- Check the external environment and equipment appearance.
- Ensure the cooling water system is functioning properly.
- Check water temperature (recommended 20–25°C).
- Check pressure (generally ≤0.5MPa).
- Observe for abnormal noise, vibration, or alarm indicators.
Weekly Maintenance (20–30 minutes)
- Clean external dust on equipment.
- Check cooling water quality.
- Check cable connections and power supply.
- Inspect protective gas supply system.
- Ensure ventilation and cooling fans operate normally.
Monthly Maintenance (40–60 minutes)
- Check laser output stability.
- Inspect optical path components.
- Clean protective lenses.
- Check beam alignment.
- Check cooling pipes and connections for leakage.
Quarterly Maintenance (1.5–2 hours)
- Perform full optical inspection.
- Check focusing system alignment.
- Inspect power modules.
- Inspect cooling system filters and pipelines.
Annual Maintenance
- Complete system inspection by professional technicians.
- Replace aging cooling liquid.
- Check laser module operating hours.
- Perform full calibration of optical systems.
3. Cooling Water Quality Requirements
- Use purified water or deionized water.
- Water hardness should be low.
- Replace cooling water every 3–6 months.
- Use professional antifreeze coolant when necessary.
4. Operating Environment Requirements
- Ambient temperature: 20–28°C
- Relative humidity: 40%–60%
- Keep equipment away from dust, oil, and vibration.
- Ensure proper ventilation.
5. Shutdown Maintenance
- Turn off the laser power supply.
- Allow the cooling system to run for several minutes.
- Clean the work area.
- Cover the machine if it will not be used for a long period.
6. Maintenance Tools
- Professional optical cleaning kit
- Antistatic gloves
- Lint-free cleaning cloth
- Precision screwdrivers
- Compressed air for optical cleaning