Bonded Ring Neodymium Magnet

As formed, these magnets achieve high dimensional accuracy and complex shaping.

These magnets are made by combining plastics with metal powder having a combination (Nd-Fe-B)

similar to that ofsintered neodymium magnets and then forming the mixture. Since the magnets

contain plastics,the magnetism is much lower. As formed, however, these magnets offer the

advantage of being processed into thin products with high dimensional precision and products

of complex shaping. Moreover, isotropic magnets are easily magnetized radially and can be

magnetized in many varieties as well. Their temperature characteristics are a little lower than those of

neodymium magnets, and are unsuited for use at 80°C or higher.

Advantages

Compression Bonded:
Higher Magnetic Strength due to higher magnetic particle density.
Epoxy Binder / Resistant to normal industrial solvents and automotive fluids
Epoxy Coat after manufacturing to prevent oxidation
Temperature Range -40c – 180c
“Tight” tolerances off tool
Good mechanical strength

Disadvantages

Requires tooling and mold costs

Piece price will be low only in high volume

Low magnetic properties

Different magnetized pattern:

Existing Multipole rings simplify assembly verse arc sepments.

Regarding of magnetic properties of Bonded NdFeB Magnet, Please click here.

For your different application,different grade/series for your choice.