Permanent Ring Magnet

Permanent Ring Magnet

The Permanent Ring Magnet is a durable, high-strength magnet shaped like a ring, made from powerful rare earth materials like neodymium or samarium-cobalt. Known for its ability to retain magnetic properties over long periods, this magnet is ideal for applications that require consistent magnetic force without degradation. The ring shape, featuring a central hole, allows it to be easily mounted on shafts or used in rotational systems. Permanent ring magnets are widely used in electric motors, generators, sensors, and magnetic assemblies where precise, reliable, and long-lasting magnetic performance is crucial for optimal operation.

 Product Details 

What grades & shapes are available for neodymium magnets?

Grades N35, N38, N40, N42, N48, N50, and N52 ( M, H, SH, UH, EH, AH series ) are available for all shapes & sizes of NdFeB magnets.

  Magnetization Direction 

Common direction of magnetization showed in picture bellow: 

• Disc, cylinder and Ring shape magnet can be magnetized Axially or Diametricall.
• Rectangle magnets can be magnetized through Thickness, Length or Width.
• Arc shape magnets can be magnetized Diametrically, through Width or Thickness.

   Axially Magnetized                 Diametrically Magnetized                  Multi-poles Axially                  Multi-poles Diametrically

 Grade & Coating 

Support all magnet plating , like Ni-Cu-Ni, Zn, Epoxy , Gold,  Silver etc.

• Neodymium magnets are made of Neodymium, Iron and Boron.  If left to the elements, the iron in magnet will rust.

To protect the magnet from corrosion and to strengthen the brittle magnet material, it is usually preferable for the magnet to be coated.

• There are a variety of options for coatings, but nickel is the most common and usually preferred. 

Our nickel plated magnets are actually triple plated with layers of nickel, copper, and nickel again. This triple coating makes  magnets much more durable than the more common single nickel plated magnets.

• Other options of coating are zinc, tin, copper, epoxy,silver and gold.

 Application 

The Round Neodymium Magnet Ring is widely used in various applications due to its strong magnetic force and ring shape. It's commonly utilized in motors, sensors, and magnetic couplings, where precise alignment and rotation are required. Additionally, it's ideal for use in loudspeakers, where it helps create high-quality sound by interacting with the voice coil. 

The central hole allows for easy mounting on rods or shafts, making it perfect for industrial machinery, medical devices, and other precision engineering applications.