NdFeB magnets, or neodymium magnets, are a type of rare-earth magnet made from an alloy of neodymium, iron, and boron. They are known for their exceptional strength compared to other magnets.
NdFeB magnets are among the strongest commercially available magnets. Their strength is measured in terms of magnetic flux density, and they can have a holding force that is many times stronger than that of similar-sized ceramic magnets.
The magnets you’re referring to come in various sizes ranging from 5mm to 25mm in diameter. The size you choose will depend on your specific application and the required holding strength.
Consider the weight of the objects you need to hold or move, and the space available. Larger magnets generally have stronger holding power, but the size also needs to fit the application area.
NdFeB magnets are used in a wide range of applications including industrial machinery, electronics, magnetic clasps, hobby projects, and even in magnetic therapy.