Magnetic Materials
NBAEM high-performance permanent magnetic materials products have a wide variety of applications, from electric motors on ships, aircraft and motorsport vehicles, to pump couplings, batteries, solar panels and NMR Equipment. Our diverse markets allow us to keep our technologies on the leading edge of innovation. Our custom magnet production and fabrication ensures that our customers receive magnet products that are specifically catered to their unique design requirements.
Magnetic Materials
Neodymium Magnets
Neodymium iron boron (NdFeB), or “neo” magnets offer the highest energy product of any material today and are available in a wide range of shapes, sizes and grades including GBD. Neo magnets can be found in a variety of applications including high performance motors, brushless DC motors, magnetic separation, magnetic resonance imaging, sensors and loudspeakers.
Bonded Magnets
Bonded magnet materials can be made from Ceramic, NdFeB, or SmCo powders which are combined with a variety of plastic binders (Matrix). They can be either Injection Molded or Compression Bonded into complex magnet shapes with finished dimensions. Bonded magnet materials have a moderate resistance to corrosion and a low tolerance to heat because of the binder material.
Samarium Cobalt Magnets
Samarium cobalt magnets (also known as SmCo magnets), are extremely powerful permanent magnets. Part of the rare-earth magnet family, SmCo magnets rank similarly in strength to neodymium magnets but have much higher temperature stability and higher coercivity. They can operate at temperatures up to 525°F (300°C). In addition, they have a very high resistance to demagnetization and to corrosion.
Alnico Magnets
Alnico magnets are made from aluminum, nickel, cobalt, iron and a few other elements, such as copper, titanium, and sulfur. Alnico magnets are relatively easily demagnetized, but resisting oxidation well. Alnico alloys make strong permanent magnets, and can be magnetized to produce strong magnetic fields. of the more commonly available magnets, only rare-earth magnets such as neodymium and samarium-cobalt are stronger.
Ferrite Magnets
Ferrite, or also known as Ceramic, magnets are corrosion resistant – they can be used in water with no corrosion at all. Although not as powerful as Rare Earth Neodymium Magnets (NdFeB) their high coercivity and relative low cost make them ideal for use in motors and high temperature motors. Ferrite Magnets are also termed Ceramic, Feroba Magnets and Hard Ferrite Magnets
Rubber Magnets
Rubber magnets, also known as flexible magnets are made of ferrite magnet powder or rare earth powder, compound with rubber, resin and other materials. Rubber coated magnets provide superior hold by increasing surface friction without marking or scratching. A rubber coating makes these magnets ideal for applications such as hanging outdoor signage and mounting cameras or sensors.
Hot Pressed Magnets
Hot-deformed anisotropic Nd-Fe-B magnets may potentially attain high coercivity due to their fine and highly orientated crystal grain microstructure as a result of the unique production process that creates these magnets. Hot Pressed magnets are radially oriented NdFeB rings who’s orientation is obtained by mechanical pressing of the Rare Earth powers through a process called Backward Extrusion
FeCrCo Magnets
FeCrCo permanent magnet first appeared in the early 1970s. FeCrCo Magnets have something similar with Alnico Magnet on production and characteristic. FeCrCo Magnets also have high remanence but low Hc which is similar with Alnico 5 Magnets, They also have high working temperature and very low-temperature coefficient of Br which is also similar with Alnico Magnets.
Laminated Magnets
Laminated magnets are also known as segmented magnets. They are made of two or more individual magnets bonded yet insulated to each other. Laminated NdFeB magnets were developed for the purpose of enhancing the performance of electric machines. This is achieved by preventing the magnets from overheating. In addition to NdFeB, Sm2Co7 magnet is also commonly applied in the magnet segmentation technology.
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