The NdFeB magnets are the strongest type of magnet commercially available and are manufactured in a wide range of shapes, sizes and grades. Neodymium Iron Boron (“Neo”, NdFeB or Neodymium) Magnets are made from an alloy containing, amongst others, the elements Neodymium, Iron and Boron (NdFeB). They are true permanent magnets and will not lose their magnetism unless they are heated to a temperature which exceeds the maximum operating temperature rating or their protective plating is damaged and water ingress causes rusting, which over time will magnetically and mechanically damage the magnets.Magnosphere Magnets has a wide range of shapes and sizes of neodymium magnets and has over 15 million neodymium magnets in it’s stock, all available on a next working day delivery basis. Neodymium magnets (NdFeB), commonly known as ‘rare earth’ magnets are high-performance permanent magnets constructed from an alloy of neodymium, iron and boron. Threads cannot be manufactured directly into neodymium magnets because they are too hard and brittle, but when integrated into pot magnet assemblies, rear threaded fixings are available in the steel pot magnet shell. They can be supplied with a number of fixing options including countersunk holes for screw fixing and with 3M 468 self-adhesive for thinner magnets to be instantly fixed to point of sale displays and printed folders. Neodymium magnets are available in discs, blocks, arcs, spheres and trapezoid shapes. Recent miniaturisation of power tools, motors, generators and loud speakers have only been possible because of the amazing magnetic performance provided by modern neodymium magnets.Neodymium magnets are relatively new, they were developed in the mid 1980s and can now be found extensively in countless modern applications from fridge magnets to wind turbines! This is why so many neodymium magnets are used by magicians for magic tricks and illusions. Two neodymium disc magnets 10mm diameter and 5mm thick can attract each other and hold in place, through the thickness of a human finger. Neodymium magnets emit deep magnetic fields to attract ferrous items and other magnets from impressive distances. A neodymium disc magnet weighing only 2 grams can lift a steel block weighing over 2,000 grams! They are used in applications where the strongest magnetic force is required from the smallest possible volume of magnet material.Even small neodymium magnets have a surprising amount of magnetic force and they are capable of lifting in excess of 1,000 times their own weight. The new magnet has a significant advantage in high-efficiency and high-torque density applications, such as motors and generators for electric vehicles and wind power generation, and in more general applications where small powerful magnets are required, including robots, automation systems and domestic appliances.Neodymium magnets are the most powerful of all permanent magnets. The result was a new magnet for the mass market that almost doubled the performance of the previous best and successfully turned Nd-Fe-B magnets into a viable industrial material with wide applications. For even wider applications, he continued further successful development of novel techniques for reducing the amount of Dy or even eliminating the usage of Dy to help preserve natural resources. This resulted in the development of high-volume manufacturing techniques which successfully commercialized his innovation. Sagawa then led research and development in the 1980s and early 1990s to successfully overcome the issues of sudden reduction of magnetic coercivity at high temperature, most notably by adding dysprosium (Dy) to improve heat resistance. Sagawa’s breakthrough innovation was his creation of a new compound formed by replacing the scarce and expensive cobalt & samarium with more abundant and cheaper iron & neodymium, and at the same time introducing boron to improve the magnetic properties - the first step in delivering high performance to a mass market. However, their high cost and limited natural resources restricted them to niche applications.ĭr Masato Sagawa pioneered the development of a sintered rare-earth permanent magnet, the sintered neodymium-iron-boron (Nd-Fe-B) magnet. Permanent magnet technologies have been progressively developed since the 18th Century, but it was in the late 1960s that a step change was achieved through the invention of high-performance cobalt-based rare-earth magnets (samarium-cobalt). The 2022 Queen Elizabeth Prize for Engineering is awarded to Dr Masato Sagawa for the discovery, development and global commercialization of the world’s most powerful permanent magnet, which has been transformational in its contribution towards enabling cleaner, energy saving technologies.

Strongest magnet in the world