China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Permanent magnet coupling is a new type of coupling that utilizes the magnetic coupling between permanent magnets to connect the prime mover with the working machine. Compared with the traditional coupling, it does not need direct mechanical coupling, but uses the magnetic field can penetrate a certain spatial distance and material material characteristics, to realize the transfer of mechanical energy between the master and slave shafts.
NdFeB (neodymium magnets) have significant advantages in magnetic couplings, such as high strength magnetic properties, miniaturization and light weight, better temperature stability and corrosion resistance, long life and low maintenance.
The following picture shows the magnetic coupling magnet for wall breakers, made of neodymium magnet, curved shape.
Extremely high magnetic energy strength
Neodymium-iron-boron magnets have an extremely high magnetic energy product (the amount of magnetic energy stored per unit volume), which means that even a small volume can generate a powerful magnetic field, so it is possible to transmit greater torque in a magnetic coupling while maintaining a compact design.
Good temperature and corrosion resistance
According to the different needs can choose different temperature resistance level of neodymium magnets, and then through the surface plating corrosion resistance coating can make it maintain good performance, which is very important for some need to be in the higher ambient temperature or humid environment of the magnetic coupling applications.
Helpful article: Neodymium Working Temperature Range (Rating)
Long life and low maintenance
Neodymium-iron-boron magnets are used in magnetic couplings that typically do not require direct contact with mechanical components, reducing wear and maintenance requirements. Their long-term stable magnetic properties allow the couplings to work efficiently for longer periods of time, reducing maintenance frequency and costs.
In summary, rare-earth NdFeB magnets have a wide range of applications in magnetic couplings due to their excellent magnetic properties, light weight and high reliability, especially in applications requiring high performance and high efficiency.
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