On request we can manufacture any diameter of ferrite ring. By default we manufacture ferrite rings that have the outer diameter that goes from 10 to 220mm and inner diameter, from 4 to 110mm. The thickness can vary from 3 to 45mm. Obtaining multiple applications for our products.
This type of magnets, can reach up to 250ºC, without suffering any damage. They are the magnets that most endure extreme temperatures. All ferrite rings are supplied uncoated.