The CNC router spindle (CNC spindle motor) is an electric spindle that can be processed at a high speed, It connects a tool holder or a collet that securely grips the cutting router bits, and the spindle ensures stability and precision during the machining process. It can be widely used in some small and medium-sized CNC router machines so that the CNC router machine can carve, drill, mill, etc. If you have a plan to purchase a CNC wood router, the first question you need to know is “air-cooled (air-cooled spindle motor) or water-cooled CNC spindle, which is better for my job?” here we'll learn the difference between them.

Water-cooling and air-cooling spindles can significantly impact the performance, efficiency, and longevity of the machining process. Water-cooling and air-cooling spindle have their own advantages, we'll know the knowledge from work principles, Cooling effect, noise, work performance, service life, accuracy, and price.

Work principle:

Water cooling spindle  when the spindle rotated at high speed 18000 or 24000 rpm, water circulation to cool the heat generated,  will not exceed 40 degrees after the water has been circulated, the test resut is good.

The air-cooling spindle is cooled by a fan, and the cooling effect is definitely not as good as that of water cooling. Also here we need to know if the air-cooled spindle cannot work for a long time continuously.  If your task needs 6 hours to complete; the router machine with an air-cooled spindle has to rest 30 minutes within 6 hours.

A CNC router machine is better for you to get water cooled CNC spindle.

Noise: The water-cooled CNC spindle is essentially noiseless, but the air-cooled one is relatively noisy.

Precision. The water-cooled router spindle is better than the air-cooled spindle (domestic).

Which one is convenient to use? The Water cooling spindle needs to connect water pump or chiller,  it needs to change the water periodically. The air-cooled spindle has no such troubles.

Service life: The service life of a water-cooled spindle is longer than that of an air-cooled spindle

Price: consider the stable working performance of Air-cooled spindles, so the air-cooled spindle is more expensive than water-cooled spindles。

Working environment:

A water-cooled spindle requires a continuous water supply, pump, and other such equipment. Due to this requirement, it tends to occupy more space. It's easy to freeze in cold places.

Therefore, when choosing the CNC spindle for your CNC, we should combine the noise, life, accuracy, and the use of convenience comprehensive reason, Rico can supply both air-cooled spindle and water-cooled spindle. If you have such needs, welcome your inquiry.

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