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Temperature control ability is the key to keep beam-stability and surface quality consistency under prolonged thermal stress.

 Then how the cooling system of different laser cleaning machine works?

Air-cooled laser cleaning machine:

 This method uses fans and a heat sink for heat dissipation. If the ambient temperature exceeds 35°C, or after 30 min -1 hour of continuous use, a high-temperature alarm will trigger, shutting down the machine for protection. Therefore, in higher-temperature environments (+32°c), this type of laser welding machine is essentially without a cooling system, as the ambient air used to cool it can be too hot to cool. Some air-cooled laser cleaning machine manufacturers claim their machines use refrigerant. However, they do not directly dissipate heat from the pump source and other heat-generating components; they only lower the intake air temperature, providing only auxiliary cooling and not achieving constant temperature control inside the laser source.

Water-cooled laser cleaning machine: 

This method uses a water cooler to remove heat from the pump source. With prolonged use, the water temperature will increase, reducing power output and resulting in unstable surface quality. Once the temperature exceeds 40°C, a high-temperature alarm will trigger, shutting down for protection. It is also highly sensitive to water quality; poor water quality will lead to excessive scale and rust. Long-term use poses a risk of leaks, electrical malfunctions, and even equipment burnout. Water-cooled machines require careful maintenance, including water changes, rust removal, and filter replacements. Antifreeze is added in winter, and coolant in summer. Maintenance costs are very high due to its relatively low price. Water-cooled laser cleaning machines are mostly big, heavy and difficult to transport!

Lasermach Dual-loop refrigerant direct cooling laser CW cleaning machine: 

We have a complete dual circuit refrigerant circulation pipeline. The entire pipeline is in close contact with the pump source and other main heat-generating components, removing heat directly from the source by directly injecting cold into the laser source. Numerous temperature sensors monitor the pump source temperature in real time. If the chip temperature rises slightly, the system automatically increases the compressor's cooling capacity; if the temperature is too low, it automatically reduces power consumption. Temperature control accuracy is stable at ±0.3℃, unaffected by ambient workshop temperatures, even at -30°C and +50-60℃. The laser's core components maintain their optimal operating temperature to ensure stable output power. The machine can function 7/7 24/24 at 100% Duty!

In summary, only our PhotonClean Pro-Series with our self-developed heat pump dual-loop refrigerant direct-cooling laser cleaning system employs an intelligent design, utilizing a temperature monitoring system and a refrigerant system to regulate the temperature with high precision of all core heat-generating components. This ensures stable power output and weld quality even under full load operation, without any power reduction. Only effective thermal management prevents beam drift and ensures uniform cleaning during continuous, high-power industrial runs.

Dual Circuit Refrigerant HeatPump with Direct Cooling Technology

Never Stops Cooling

  • Refrigeration: Highly Efficient Heat Pump with inverter drive – No Need for Water
  • Unlike air-cooling systems, this system operates 24/7 with a 100% duty cycle.
  • This is currently the only option on the market, designed to operate in temperatures ranging from -20°C to +60°C (-4°F to +140°F).
  • It utilizes a double-circuit heat pump, which provides superior cooling efficiency.