Rare Earth Magnets

A Beginners Guide to Rare Earth Magnets

Rare earth magnets are the pinnacle of the magnetic industry, they are the strongest permanent magnets available on the market today significantly outperforming ferrite and alnico magnets. There are two types of rare earth magnets being used daily due to there outstanding magnetic capabilities. These are neodymium magnets also known as NdFeb and samarium cobalt magnet or SmCo, and although they are both rare earth magnets, they each have unique magnetic properties.

Samarium Cobalt Rare Earth Magnets

Rare Earth MagnetsSamarium cobalt rare earth magnets were the strongest magnets available on the market until the introduction of neodymium. This type of magnet is known for being extremely difficult to demagnetise and several other benefits its application can provide. For example, they have very high maximum operating temperature and high resistance to corrosion.

Neodymium Rare Earth Magnets

Neodymium rare earth magnets took the market by storm, taking the title of the strongest permanent magnet available away from SmCo magnets and still retaining it this very day. This type of rare earth magnets differs in properties from the samarium, it is made up of neodymium, iron and boron giving this a lower maximum operating temperature and are susceptible to corrosion if they are not coated or covered.

Rare Earth Magnets in Industry

Throughout the industrial and consumer market rare earth magnets have been progressively increasing in popularity year in year out. Once you understand what rare earth magnets applications and implications you are can understand why they are used so frequently across several industries.

Rare Earth magnets are applied to a situation or job where space is limited as they can be specifically designed and shaped to fit the available space. Rare earth magnets are vital as part of the everyday running of some business’s and their factories as they are the preferred magnet of choice when the greatest possible magnetic pull is required for the task at hand. Therefore, they can be seen across a magnitude of industrial application including a vast variety of industries including:

  • Aerospace industry
  • Renewable energy
  • O.S displays
  • Consumer electronics
  • Food and drink processing
  • Deep-sea exploration

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