Battle of the Rare Earth Magnets

Neodymium Iron Boron NdFeB (i.e. Neodymium) and Samarium Cobalt SmCo are both ultra-strong rare-earth permanent magnets.  Both are brittle in nature and subject to catastrophic damage if subject to severe impact (i.e. dropping).  However, that is where the similarity ends and, when selecting a magnet material for a specific application, our design engineers assess each…

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Bunting Magnetic Assembly

Halbach Arrays feature in many common-day devices such as brushless DC motors and even the Inductrack Maglev train. The Halbach Array is a specific arrangement of permanent magnets that cancels the magnetic field to nearly zero on one side, but significantly increases the strength of the magnetic field on the opposite side. This magnetic phenomenon…

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Car Dashboard Magnetic Sensors

Sensors are used everywhere from vehicle engine management systems to Smartphones determining if the flip cover accessory is closed. Modern everyday life would be very different without sensors and the operation of many of these sensors rely on magnetism. As products evolve, so have the range and specification of sensor magnets. A magnetic sensor converts…

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Pot Magnet

An international Oil and Gas company turned to Bunting when investigating designs for a novel magnetic system to act as a pressure relief valve. The Pot Magnet assembly design requirements were complex with a number of significant technical challenges. The initial design evaluation identified that the bespoke magnet assembly would be based on a simple…

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Electric Car

Mining the Urban Environment The anticipated global increase in production and consumption of electronic goods and electric vehicles puts a huge strain on raw material reserves. Subsequently, the focus has turned from mining raw materials to reclaiming, reusing and recycling secondary materials. This is known as ‘Mining the Urban Environment’. Magnets and Magnetisers at Cenex…

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Magnetic Rotor Combo

Magnetic rotors are used in a wide range of applications including motors, generators, alternators and Eddy Current Separators. These rotors spin at very high speeds and a key design consideration is ensuring that the motors do not become detached from the magnet carrier. One of the key design considerations is the resultant centrifugal force. Centrifugal…

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Rotor Exploded View

Magnets are an integral component in all modern vehicles.  They help form the traction drive to provide motive power to the vehicle, whilst also driving the window wipers, electric windows, instrumentation, and an array of engine parts.  For electric vehicles, magnets are simply fundamental. Magnets and Magnet Assemblies for the Automotive Sector The magnets are…

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Multipole Magnetic Rotor

Bunting has secured an order for the supply of 300 multi-pole Samarium Cobalt (SmCo) magnetic rotors annually to a prominent aerospace customer. The magnetic rotor order was placed at the end of 2019 with deliveries starting in 2020 and running for 10 years. The Bunting engineering team has worked with this aerospace customer for a…

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IWM

Matthew Swallow, Bunting’s Technical Products Manager, reports on the UK Magnetics Society’s 32nd Ewing Conference held at the Imperial War Museum in Duxford in December 2019. A Review of The 32nd Ewing Conference “The UK Magnetics Society’s Ewing conference has evolved over the last 30 years from a single Key Note address and a social gathering…

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Waste and recycling electrics

The launch of the European Union (EU)-funded SUSMAGPRO project took place in Germany in June 2019.  The four-year project focuses on the sustainable recovery, re-processing, and reuse of rare-earth magnets.  With global expertise on magnets and magnetic assemblies, Bunting is one of several project partners. “Rare-earth magnets are a key component in many frequently used…

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