What is the difference between air cooling and water cooling spindle in CNC router?

1.What is the CNC router spindle cooling method?

During the operation of the engraving machine, the spindle may experience heating. Once the spindle heats up, it will affect the normal operation of the equipment. It is necessary to ‘cool down’ the spindle. The so-called “cooling” methods include air cooling and water cooling. By using these two methods, the constantly heating spindle temperature can be lowered to ensure the normal operation of the equipment.

2.What do air and water cooling meaning in CNC Router machine?

1. Water cooling :Through water circulation to cool the heat generated by the high-speed rotation of the spindle.
2. Air cooling :Throughfan to dissipate heat.

3.Why spindle need cooling in cnc router?

There has some bad effects if spindle work with high temperature.

A.If the thermal expansion coefficients of different parts inside the spindle are different, it will cause changes in structural stress and small changes in internal air gaps, which will affect the dynamic response of the spindle and make it easy to lose step at high speeds. Therefore, necessary control should be exercised over the heating of the spindle.

4.What is the function difference between air cooling and water cooling in cnc router machines?