Neodymium Rare Earth Donut Magnet

The Neodymium Rare Earth Donut Magnet combines the extreme strength of rare earth alloys with the practical utility of a wide-bore geometry. This donut-style ring is specifically engineered for high-performance applications where a central shaft or mechanical passage is required. The rare earth composition allows for a much thinner wall than would be possible with other materials, enabling more compact and lightweight designs without sacrificing magnetic output.

To protect the sensitive rare earth alloy, BMAG donut magnets are encapsulated in high-durability coatings. We offer Nickel, Gold, and even Black Epoxy finishes to suit both aesthetic and functional needs. These donut magnets are available in “High Coercivity” grades, making them ideal for use in proximity to other high-power magnets or in environments with strong demagnetizing influences. Every donut is precision-machined to ensure that the “North” and “South” poles are perfectly flat and parallel, ensuring a linear and predictable pull force for your application.

Neodymium Rare Earth Donut Magnet Dimension Diagram

Ring Magnet Magnetization Direction