Magnetic Technology
Understanding Magnetic Permeance Coefficient
Firstly, it is important to understand that the maximum working temperature of a NdFeB magnet is not defined by the material grade! It is essential to calculate the magnetic permeance coefficient to establish what grade of material you need. The two examples compare the same magnet but with different thicknesses, one at 30mm and one at…
Read MoreWhat are Soft Magnetics?
When we added Soft Magnetics to our magnetic products portfolio, one of the most common questions we were then asked was ‘What are soft magnetics?’ Simply, soft magnetic materials are those that can be easily magnetised and demagnetised and their primary use is to enhance and/or channel the flux produced by an electric current. Soft…
Read MoreBunting and Force Engineering Design Magnetic Rollercoaster Brake
Bunting and Force Engineering have collaborated to design and build a novel magnetic brake for use on rollercoasters. During the two-year project, the project team considered different permanent magnet arrangements required to generate the braking force needed to slow and stop a rollercoaster cart. The final design used high-power, low-weight neodymium magnets. As a leading…
Read More34th Ewing Event: The Road to Fusion
Matthew Swallow, Bunting’s Technical Products Manager and Vice Chair of the UK Magnetics Society, reports on the society’s 34th Ewing Event held at the University of York in the UK in December 2022 and sponsored by Bunting. The 2022 Ewing Event was entitled ‘The Road to Fusion’ and looked at the magnetic technologies involved in…
Read MoreCenex-LCV 2022 Review
Cenex-LCV is the UK’s premier low carbon vehicle event, held at UTAC in Bedfordshire, UK (7-8 September 2022). Our Matthew Swallow, our Technical Product Manager reviews the 2022 event. Promoting a Low Carbon Vehicle Future “The Low Carbon Vehicle Exhibition of 2022 perfectly lived up to its name. This year there were vehicles using every…
Read MoreStray Magnetic Fields and Safety
Bunting is at the heart of the electrification program of the world’s vehicles. By producing magnetising systems that allow for genuinely error-free assembly and providing 100% inline testing, Bunting supports automotive and aerospace programmes looking to create new modes of travel and improve efficiency. Bunting is proud to support this sustainable engineering activity to provide…
Read MoreAlNiCo Magnets and Music Revolution
AlNiCo pickup magnets played a huge part in the development of modern electric guitar sounds. Guitar manufacturers and musicians discovered that even on the same guitar, switching out different AlNiCo alloys resulted in drastically different musical tones. Indeed, the use of certain AlNiCo pickups is responsible for the signature sounds associated with 50s and 60s…
Read MoreAdvanced Magnetising Technology at Coiltech Deutschland 2022
Following the success of attending Coiltech Italia in 2021 and a record year for magnetising equipment sales, Bunting is exhibiting at the first Coiltech Deutschland (6-7 April 2022). The Coiltech Deutschland conference and exhibition focuses on materials and machinery for the production and maintenance of electric motors, generators, power and distribution transformers, industrial transformers and…
Read MoreThe History of Neodymium Magnets
The origin of the neodymium magnets dates back to 1885 when Carl Auer von Welsbach, an Austrian scientist and inventor, separated didymium into the new separate elements neodidymium (“new didymium”) and praseodidymium (“green didymium”). In time, the element names would change to neodymium and praseodymium. Neodymium (Nd) is the fourth member of the lanthanide ‘rare-earth…
Read MoreBunting Magnet Test and Development Centre Investment
Bunting has invested in expanding their Test and Development Centre at Berkhamsted in the UK where they specialise in the design, test and build of a wide range of magnet and magnetic technologies. Bunting’s Berkhamsted operation is responsible for the design and manufacture of magnets, magnet assemblies, and magnetising equipment. The range of applications for…
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