Magnet Technology
Explaining Neodymium Magnet Strength
Neodymium Rare Earth Magnets are the strongest commercially available permanent magnets in the world. Originally invented by General Motors and Sumitomo Special Metals in the early 1980s, Neodymium Magnets are a key component in mobile phones, computers, wind turbines, and modern cars. The list of applications is nearly endless. As the name suggests, the prime…
Read MoreAn Introduction to the Halbach Array
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…
Read MoreSurface Mounted Arc Magnets
Bunting is capable of supplying almost any shape and size of a permanent magnet, but one of the most popular shapes is the arc. Arc magnets are used in a wide range of magnet assemblies, but in particular, surface mounted electric machines. There are four main types of arc magnets and these are: Each arc-type…
Read MoreBespoke Pot Magnet Design for Oil and Gas Application
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…
Read MoreMetal Recovery from Electric Vehicles
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’. The strategic nature of critical…
Read MoreCarbon Fibre Containment for Magnetic Rotors
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…
Read MoreSUSMAGPRO Rare Earth Magnets Recycling Task Force
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…
Read MoreHYPED in 2019 SpaceX Hyperloop Pod Competition
SpaceX held the first Hyperloop Pod Competition in 2015. Through a competitive environment, SpaceX aimed to promote and support the development of functional Hyperloop prototypes and encourage innovation. Student teams from around the world were tasked with designing and building the best high-speed pod. In July 2019, SpaceX staged the fourth competition – Hyperloop Pod…
Read MoreMagnets In Space
2019 marks the 50th anniversary of when mankind first stepped onto the surface of the moon. However, not many people know that this momentous achievement would not have been possible without magnets. In this article, we review the important role of magnets in space. The guidance and navigation system computers for the Apollo 11 spacecraft…
Read MoreSupplying Magnets To NASA
Bunting is thrilled to have been selected as the supplier of high specification grain boundary diffused Neodymium Iron Boron (NdFeB) Magnets for a NASA project. Grain Boundary Diffused Magnets Grain Boundary Diffusion (GBD) technology enables the heavy rare earth element Dysprosium to diffuse from the surface of a grain around all of the grains boundaries. Dysprosium…
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