Permanent Magnets

Permanent Magnets and Assemblies
Arnold’s high performance permanent magnets have a wide variety of applications, from electric motors on nuclear submarines, military and commercial aircraft, and motorsport 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 products that are specifically catered to their unique design requirements.
Contact a specialist to learn more about our complex permanent magnetic solutions.
Products
Samarium Cobalt Magnets
Arnold Magnetic Technologies’ industry leading RECOMA Samarium Cobalt (SmCo) magnet materials break the performance barriers of other magnetic components. Offering several operational advantages, our top-of-the-line RECOMA 35E is currently the most power dense samarium cobalt magnet on the market, and is specifically created for the most demanding environments, including high speed (100,000 RPM+), high temperature (above 150°C), and highly corrosive environments, such as aerospace, motorsports, and automotive industries. Learn more.
Neodymium Iron Boron 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. 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. Learn more .
Alnico Magnets
Alnico delivers impressive flux density at an economical price. It boasts the lowest reversible temperature coefficient of any standard commercial magnet material (0.02% per degree centigrade) allowing for excellent stability over a wide temperature range. Alnico is also inherently corrosion resistant. Learn more.
Injection Molded Magnets
Injection molded magnets are essentially fully dense magnetic powders blended with a variety of polymer base materials. Depending on the combination of magnetic material and polymer selected, a wide range of final material properties are possible. Learn more.
Laminated Magnets
High efficiency demands the best materials, and the Arnold L Type laminated rare earth magnets are proven to reduce eddy current losses in high efficiency motors. Less eddy current loss means less heat and less waste. Designers in the aerospace, automotive, motorsport, and industrial markets are turning to laminated rare earth magnets, and are working to balance the tradeoff between power and heat. Learn more .
Electromagnets
Arnold manufactures a wide variety of custom electromagnets which generate uniform or proportioned magnetic field shapes and with a wide range of magnetic field intensities. Learn more.
Wraptite Encapsulation
Arnold Magnetic Technologies offers composite and metallic encapsulation solutions for a wide range of permanent magnet systems and applications. Wraptite composite sleeves offer a superior design alternative for today’s higher performance applications in which rotational speeds exceed 50K RPM. In addition to RPM, Wraptite encapsulation is a perfect fit for systems that must operate reliably in extreme conditions while reducing system weight. Learn more.