This 2mm thick ring magnet is made of rare earth neodymium element, the specific size is 32mm in outer diameter, 20m in inner diameter and 2mm in thickness. This magnet also can be called big hole magnet. It is plated nickel and silvery white, the working temperature is 80℃.
This is a ring-shaped unshielded magnet. They can be easily and securely secured using holes or countersunk holes. If there is no suitable fixed magnet or magnet system, this magnet can be used in combination with the appropriate parts to build a highly specific magnet system. It can be widely used in sensors, motors, microphones, pickups, loudspeakers, magnetic coupling pumps, MRI scanners, magnetic therapy, suspension devices, magnetic separators, crafts, model making, bearings and so on.
The sample display of 30mm super strong neodymium ring magnets with hole D32 x 20 x 2mm:
Close to size strong ring magnet;
Finger ring strong neodymium magnet 25mm x 20mm x 2mm thickness