Rotor Magnet Replacement
The rare-earth (neodymium) magnets on servo motor rotors can crack, detach or lose magnetic strength due to extreme heat or vibration. Magnet failures lead to severe torque loss and overcurrent draw.
Magnet Fault Symptoms
- Marked torque loss, motor straining
- Overcurrent on the drive
- Irregular rotation and hum
- Heating and efficiency drop
Our Magnet Revision Lab
We replace broken magnets and bond them with high-temperature epoxy resins, take magnetic field (Gauss) measurements to ensure torque balance, and apply computerized dynamic balancing after replacement. See our services.
Why Magnet Repair?
Magnet failure directly affects performance but does not require full motor replacement. Replacement with Gauss verification restores original torque.
Frequently Asked Questions
Why do rotor magnets fail?
Extreme heat and vibration can crack, detach or weaken the magnets.
What solves the torque loss?
Replacing broken/weakened magnets with Gauss measurement restores torque balance.
Why is a Gauss measurement done?
To verify the magnetic strength and torque balance of the magnets.
Is there a warranty after repair?
Yes. The motor is delivered under warranty after magnet replacement and balancing.