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The cooling device installed on the spindle may seem to be a very small part of the whole CNC router,but it can affect running of the whole CNC router. There are two kinds of cooling for the spindle. One is water cooling and the other is air cooling.
The cooling device installed on the spindle may seem to be a very small part of the whole CNC router, but it can affect running of the whole CNC router. There are two kinds of cooling for the spindle. One is water cooling and the other is air cooling. Many CNC router users are quite confused when it comes to which one is better. Well, today we are going to briefly analyze their differences.
1. Cooling performance
Water cooling, as its name suggests, uses circulating water to take away the heat generated by the high speed rotating spindle. This is in fact a very effective way to take away the heat, for the spindle will remain below 40 degree C after water runs through it. However, air cooling just uses cooling fan to dissipate the spindle’s heat and it is easily affected by the ambient temperature. Besides, water cooling, which comes in the form of industrial water chiller, enables temperature control while air cooling doesn’t. Therefore, water cooling is often used in high power spindle while air cooling is often the consideration of low power spindle.
2. Noise level
As mentioned before, air cooling requires cooling fan to dissipate the heat and cooling fan makes great noise when it is working. However, water cooling mainly uses water circulation to dissipate the heat, so it is quite quiet during the operation.
3. Frozen water problem
This is very common in water cooling solution, i.e. industrial water chiller in cold-weather condition. In this circumstance, water is easy to get frozen. And if users don’t notice this problem and run the spindle directly, the spindle may be broken in just a few minutes. But this could be dealt with by adding diluted anti-freezer into the chiller or adding a heater inside. For air cooling, this is not a problem at all.
4. Price
Comparing with water cooling, air cooling is more expensive.
To sum up, choosing an ideal cooling solution for your CNC router spindle should be based on your own needs.
S&A has 19 years of experience in industrial refrigeration and its CW series industrial water chillers are widely used in cooling CNC router spindles of different powers. These spindle chiller units are easy to use and install and offer cooling capacity from 600W to 30KW with multiple power specifications to choose from.
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TEYU S&A Chiller was founded in 2002 with 22 years of chiller manufacturing experience, and now is recognized as a cooling technology pioneer and reliable partner in laser industry.
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