Anisotropic Multipolar Ring Pressed Bonded Magnets

Multipolar Anisotropic NdFeB Ring Magnets Item No. ABNM-07
Format: Any other dimensions can be supplied to order. The ring is gray epoxy coated.
Maximum working temperature: 80ºC
Observations: This manufacturing method allows for the creation of more complex geometric shapes. Pressed bonded magnets therefore have a variety of applications. Some examples are magnetic parts in motors, magnetic encoders for domestic white goods, washing machines, the automotive industry, etc.
Measurements: According to customer specifications.

Plastic bonded magnets can be pressed and injected. Pressed bonded magnets are the result of combining thermoplastic binders and powdered permanent magnets. They can be made in isotropic and anisotropic qualities. They show excellent mechanical properties allowing us to achieve tight tolerances, making balance and assembly easier and creating complex geometries. MPCO manufactures plastic bonded magnets for big companies in different sectors, such as electric motors and electrical appliance manufacturers and automotive companies. Maximum temperatures of between 100ºC and 120ºC are obtained.

Compression molding suitable anisotropic magnet powder had not been established facing the difficulty of contradiction of high density and magnet powder alignment. By applying both magnetic field and pressure at the moment when the resin is melted into liquid state by heating, both high density and a high degree of magnet powder alignment are attained. Furthermore, application of degassing and ultrasonic vibration were found to be effective. An anisotropic bonded magnet with the maximum energy of more than 20 MGOe, in other words, more than 80% of the theoretical value of maximum energy product, is obtained.