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Neodymium Magnets

The Most Powerful Magnets Available Today!

Neodymium (or “Neo”) magnets are a type of Rare Earth Magnet, with the highest magnetic properties- the most powerful magnets available today. While extremely powerful, Neo magnets are more affordable for non-technical applications such as holding, magnetic jewelry, clasps, etc….

 

 


Quick Tips

  • Magnetic Strength: The most powerful commercially produced magnets.
  • Grades Available: Grades 35, 40, 42, 45, and 48 are available. (These numbers are an indicator of the strength of the magnet.) The highest grades available are in the 52 range.
  • Physical Strength: Hard and fairly brittle - can chip or break if dropped or if they snap together.
  • How they behave with temperature: Should not be used above 130° C (240° F) without careful magnetic circuit design. Please discuss with our engineers if you anticipate using these magnets above this temperature.
  • Magnet surface: Neodymium magnets that are not protected with a surface coating (such as plating) may rust in humid conditions.
  • Relative cost: Neodymium magnets are more costly than the ceramic types, but pack a much stronger punch. You need a smaller magnet size to achieve the same objective – potentially leading to a lower overall cost as the size of the entire device can shrink.
  • Care tips: Take care when handling these magnets - especially larger magnets. They are very strong and can snap together or to a steel surface with a strong force! Be careful not to pinch your fingers between these magnets. Note that persons with pacemakers should not allow their devices to be exposed to magnetic fields greater than 5 gauss.
  • Assembly tips: Neodymium magnets are often assembled into products using "superglues" such as Loctite 325. Always ensure that bonding surfaces are clean and dry prior to bonding.