Ferrite Magnets – Magnets4U

Manufacturing Process and Production

Ferrite magnets are made in a sintering and calcination process. This is a chemical reaction of the starting materials of iron oxide and barium or strontium. This process is called, using an outdated term, “pre-sintering”. The product is ground into a fine powder and then placed in molds for the drying and sintering process.

Continue reading “Ferrite Magnets – Magnets4U”

Rare Earth Magnets – Magnets4U

What are Rare Earth Magnets?

They are strong permanent magnets made from alloys of Rare Earth elements. Developed in the 1970s and 1980s, These are the strongest type of permanent magnets made. They also produce significantly stronger magnetic fields than other types such as ferrite or alnico magnets. The magnetic field produced by Rare Earth magnets can exceed 1.4 teslas, whereas ferrite or ceramic magnets typically exhibit fields of 0.5 to 1 tesla.

Continue reading “Rare Earth Magnets – Magnets4U”