|  Market Overview

With the increasing emphasis on quality education by the Ministry of Education, more and more schools and families are paying attention to children’s hands-on skills. 3D printers (Also called 3D laser cutting machine) are being widely used in school and home education.The printing speed and lifespan of the 3D printers are closely related to its key component – laser tube. Currently, people generally consider using a CO2 laser tube with around 40W for home use, which offers relatively fast speeds and can meet printing needs. The CO2 laser tube uses a laser wavelength of 10.6 μm to produce a laser beam with a power of more than 20 kilowatts. During long-term operation, a large amount of heat will be generated. If the working temperature of the laser tube is too high, it will cause irreversible damage to the 3D laser engraving machine.

|  Market Pain Points

The high cost of CO2 laser tubes is the key to ensuring the normal operation of laser engraving machines. At present, the difficulties in cooling and heat dissipation of CO2 laser tubes in 3D laser engraving machines are mainly reflected in the following:

1. The cooling effect of air-cooling is not satisfactory: air cooling is a common cooling method, but for high-power CO2 laser tubes, pure air cooling cannot meet the cooling needs. The temperature inside the laser tube will continue to rise, the efficiency of the laser will decrease, and even the phenomenon of burning the machine may occur.

2. The temperature of the discharge tube is high, but its self-cooling is limited, and the output power of the laser is weakened: CO2 laser tubes generate a lot of heat during operation, but due to the limitation of its own heat dissipation ability, this heat cannot be effectively dissipated, resulting in a continuous increase in temperature. And when the temperature inside the CO2 laser tube rises, the efficiency of the laser will decrease, resulting in a weakened laser output power, which will directly affect the energy density and cutting depth in the laser processing process, thereby affecting the cutting efficiency.

3. Large fluctuation of cooling water flow: If the fluctuation of cooling water flow is too large, it will make the cooling effect of the laser tube unstable, which will lead to the fluctuation of the internal temperature of the laser tube, and even cause the power generation tube to break.

|  TOPSFLO Solution

The performance of the water pump plays a decisive role in the effectiveness of the entire cooling cycle.TOPSFLO laser cooling circulation pump has good cooling effects and can better solve the problems currently faced by laser cutting machine manufacturers:

1. Intelligent control: TOPSFLO DC brushless centrifugal water pump can be customized with intelligent control functions, and its PCBA control board can monitor and control the inlet and outlet flow of cooling water. When the cooling water flow is low and the temperature of the laser tube is too high, the control unit can adjust the working state and cooling capacity of the cooling circulating water pump to avoid the continuous increase of temperature in the laser tube.

2. Customized parameters: The heat generated by the laser tube and the heat taken away by the cooling circulating pump need to reach a dynamic balance, so that the temperature of the laser tube is maintained within a certain range.The TOPSFLO cooling pump is customized with a maximum flow rate of 9L/min and a maximum head of 5M according to the cooling and heat dissipation requirements of the laser tube. It optimizes the flow rate and head in a compact size to meet the system’s heat dissipation requirements.

3. Stable water flow rate: TOPSFLO centrifugal pumps are made of the highest-quality materials in the peer group, and the stability of the components will be taken into account from the beginning of the design of the product. After multiple validation tests, the batch consistency is high, and the failure rate is low, which can provide a constant and reliable flow rate to maintain the constancy of the laser wavelength and prolong the service life of the laser.

Schematic Diagram of Cooling Pump for 3D Laser Cutting Machine