Air cooled spindle and water cooled spindle difference


The spindle is a key component of any cnc router wood carving machine and is used by the operator to perform high-speed milling, drilling, engraving, and other such operations on a benchtop router cnc 4 axis.

Spindle is divided into air cooling and water cooling, air cooling spindle uses fan to heat. Water cooled CNC spindle adopts water cycle cooling spindle.


Cooling effect

Because the temperature of the water after it passes through (commonly tested) does not exceed 40 degrees; The air-cooled spindle adopts the fan to dissipate heat, and its effect is certainly not as good as water cooling

Noise generation

Due to the operation of the cooling fan, the air-cooled spindle produces a lot of noise. In contrast, water cooled spindles provide noiseless operation.


The service life of the water-cooled spindle is longer than that of the air-cooled spindle. The premise is that the operator carefully maintains the water-cooled spindle. For example, by changing water and using an industrial water cooler, you can extend its service life.


Because the air-cooled spindle is not equipped with water tank or pumping machinery, maintenance is simple. Water-cooled spindles pay more attention to maintenance, need to frequently change water, not easy to cause damage to the spindle.

Take up the space

Water-cooled spindles require continuous water supply, pumps and other such equipment, which takes up more space. Air cooled spindles do not require this.

Using the environment

Water cooled spindles do not provide optimal performance in cold conditions unless a water cooler is used and the water cooler cannot be stopped, but it wastes power. Air-cooled spindles have fewer restrictions and are the best choice if you are in a location where it is very cold most of the time.

Through the above comparison, customers can determine the use of appropriate spindle motor according to their own processing needs, processing product characteristics and processing environment and other factors, which is more conducive to production demand, but also to achieve better cost control.


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