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Top 8 Practical Tips to Prolong the CNC Router Spindle Lifespan

Publish Date: Apr. 12, 2022 Author: Jackie Publisher: EagleTec CNC Modify Date: Apr. 12, 2022

All the electric spindles applied on cnc routers are maintenance-free. But it doesn't mean we can do nothing about running the spindles in an appropriate mode to extend the spindle lifespan as long as possible. In this blog post, let us look at the top eight tips for extending the lifespan of a cnc router spindle.

three electric spindles on the cnc router

Tip 1. When the new electro spindle is running for the first time, whether it is a water-cooled spindle or an air-cooled spindle after it is installed on the cnc router machine, it is best to start it at a low speed of 6000 rpm and then increase it by 3000 rpm every 10 minutes. We generally use it after it reaches 24,000 or 18,000 RPM according to different spindle motor specifications. This is because the bearings in the new spindle need to be warmed up. In addition, to prolong the service life of the spindle, it is best to test it for 10-15 minutes before using it normally. EagleTec has been doing the same on every machine we build.


Tip 2. Please start the machining process once the spindle RPM reaches the rated value. Some operators make the machine cut before the spindle runs at full speed, and this improper operation can damage the spindle bearings and shorten their lives.

three pieces of air cooled cnc spindle

Tip 3. A rear-mounted coaxial fan cools the air cooled cnc spindle. To get an excellent cooling effect, please do not make the air spindle speed lower than 7000rpm.


Tip 4. Improper feed rates can negatively impact spindle life. Please set the appropriate feeding speed for your wood router according to different jobs or materials.


Tip 5. The electro-spindle cannot have a collision with any other objects, including the tool change process. If the crash happens, the balls of the spindle bearing will knock out a small hole in the outer and inner rings, thereby damaging the high-speed bearing. The result is a complete failure of the bearing after a short period of use. And it further leads to the fact that the spindle rotor does not move at all.


Tip 6. The air-cooled spindle should avoid dust dropping from the fan on the top of the spindle.


Tip 7. Using a dynamically balanced spindle nut will give benefits to the spindle. The spindle nut with dynamic balance treatment can reduce the noise and vibration of the spindle. Therefore, we can extend the service life of the spindle.


Tip 8. The router bits must be knife-edged. Otherwise, it will increase the spindle load, reduce processing efficiency, raise vibration, reduce spindle life, and accelerate bearing wear.

If you are looking for cnc router machines with great quality and best support, please contact us freely.


Original Post from EagleTec CNC

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