Neodymium ring magnets are a type of rare earth magnet made from an alloy of neodymium, iron, and boron. They are known for their exceptional strength and magnetic properties, which make them significantly stronger than other types of magnets like ceramic or ferrite. Shaped like a ring with a circular hole in the center, these magnets are versatile and used in various applications including electronics, magnetic resonance imaging (MRI), and in motors and generators.
Their ring shape allows them to be used where a mechanical attachment is necessary, as the hole can be utilized to secure the magnet with a screw or other fixture. Despite their strength, neodymium magnets are brittle and can be prone to corrosion, thus they are often coated with materials like nickel or gold to improve durability and resistance to environmental factors. Neodymium ring magnets are popular in both industrial and consumer applications due to their powerful magnetic field and compact size.