Neodymium Magnets Manufacturers

A neodymium magnet is a powerful magnet made of a combination of neodymium, iron, and boron. They are very strong in comparison to their mass. It is mechanically fragile and the most powerful grades lose their magnetism at temperatures above 176 degrees fahrenheit or 80 degrees Celsius. High-temperature grades will operate at up to 200 and even 230 °C but their strength is only marginally greater than that of samarium-cobalt. They have replaced marginally weaker and significantly more heat-resistant samarium-cobalt magnets in most applications, due mainly to their lower cost. It exhibits magnetic braking when moved near a non-magnetic metal due to induced eddy currents. They are used for stabilization and angular head motors in computer hard drives.