Winding repair

The art of re-winding in spindle motors, which are responsible for the torque, requires the best production quality and an enormous quantity of technical knowledge.

Before removing the old winding we thoroughly test and save all technical data of the old winding:

We lay special attention on not damaging the stator while removing the old winding. As well we focus to not overheat the metal sheet of the stator otherwise the loss in the iron casket is remarkable and reduces the efficiency of the motor.

All windings, wether synchron or asynchron have to bear very high temperatures during work, so the use of materials and isolation of temperature class H is mandatory.

After re-winding the testing if all wires are derived correctly from the notches and there are no interchanges or nestings is most important.

We use special bandages that shrink while drying to ensure that the winding is most compact and insensitive to vibrations during work process.

The spools are only connected together by the bending process of the body.

By adding silver we additionally improve the contacts.

After finishing the connections and final bandaging the correct arrangement and marking of the power cords is done to ease the work of the technicians remounting the motor into the spindle or machine.

Before the painting we add glass fiber wedges into the notches. This reinforces the winding and reduces the loosing between the different notches.

The last steps are the impregnation, the drying and final testing of all parameters and creation of a detailed report.