Proper heat dissipation can extend the life of the spindle:

In general, the structure of the spindle can be divided into six parts: (1) the main shaft; (2) the spindle bearing; (3) the spindle unit housing; (4) the motor without the shell; (5) the module for the drive; and (6) the cooling device.

The spindle is assembled by a front and rear bearing; the stator of the motor is mounted in the housing of the spindle (it is necessary to use a cooling jacket to secure the stator first).

The change in spindle speed is determined by its drive module. If the temperature inside the spindle is too high, the cooling device inside the spindle will limit its temperature to protect the spindle from damage. When the motor spindle is operating, the motor operates at a very fast speed—a lot of heat is generated after a period. The spindle surface temperature will rise, and this will directly affect the normal operation of the spindle.

Therefore, to ensure that the temperature of the spindle is in a healthy range, before use, determine the appropriate temperature based on the project, and if the motor spindle surface temperature exceeds this temperature, the machine will automatically reduce its temperature (i.e. it will reduce the temperature of the oil used for circulation, which will reduce the electric spindle temperature).