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Learning CenterAbout Neodymium Magnets
What Does "Magnetized Through Thickness" Mean?
The north and south poles are on the magnet's two largest, flat faces, across its thickness.
Why Are Most Neodymium Magnets Plated or Coated?
The iron-rich NdFeB alloy rusts quickly on its own. Plating seals it and protects the brittle magnet. Plating thickness is about 10–25 microns per surface.
How Do Neodymium Magnets Work?
Tiny magnetic regions inside the NdFeB alloy are aligned in one direction during manufacturing and stay locked that way, creating a strong, lasting field.
What Are Neodymium Magnets?
Neodymium magnets are permanent magnets made from an alloy of neodymium, iron and boron (NdFeB). They're the strongest type you can buy.
How Is the Pull Force of a Magnet Measured?
A force gauge pulls the magnet straight off a thick, ground steel plate and records the peak force.