Ferrite cup magnets include various designs and offer different solutions. Different designs adopted different shape ferrite magnets. This is a hard flat ferrite magnet with an internal threaded screw hole in the middle. Such flat type ferrite cup magnets are assembled with a ring shape ceramic magnet and steel cup with a female threaded socket in the middle. NdFeB ring magnet can be adopted for stronger magnetic strength.

With the threaded mounting hole, the fastener is not in direct contact with the ferrite magnet, and the magnet will not be damaged due to excessive wear. It is also easy to use and can be fixed with only one screw.

The iron shell not only protects the magnet but also guides the magnetic line of force of the magnet to one side, which greatly increases the magnetic force. House with a steel shell, the flat pot magnet is stronger and more durable.