High-performance NdFeB magnets for Drones

High-performance NdFeB magnets are mainly used in the fields of new energy vehicles, high-end motors, wind power generation, robots and intelligent manufacturing.

The application of NdFeB permanent magnet materials in the field of robots is mainly high-precision permanent magnet servo motors and stepper motors (propeller motors for drones), which require high control accuracy, small size, and light weight. High power density, high torque. The operating temperature of permanent neodymium magnet servo motors and stepper motors used in robots is generally below 100°C, and H or SH grade NdFeB magnets are mostly used.

Servo motors or servos can be precisely controlled by sending an analogue or digital electronic signal to the drones motor that represents the required position of the motor shaft. This high-precision position is then achieved via a position encoder and feedback circuitry. Servo motors can be based on different types of motor, ranging from simple brushed DC motors to large industrial AC induction motors.

As the rotor does not need a power source to generate its magnetic field, PMSM motors are generally more efficient than regular induction motors, plus the operating temperatures of permanent magnet motors are usually cooler, resulting in increased reliability and lifespan. Permanent magnet motors require precision control circuitry in order to operate, making them complex to install and operate. They also require magnets made out of rare-earth materials such as neodymium and samarium.

Permanent magnet synchronous motors (PMSM) have rotors with permanent magnets embedded in them. PMSM motors use these magnets as the source of a magnetic field instead of a coil of wire energized by an electric current. They are suitable for drones, UAVs, UAS, unmanned systems and robotics.

Drone Motor NdFeB Magnet Details