Welcome to our product page of Ferrite Balls , in which you can find detailed information of Ferrite Balls . We are manufacturer and supplier of Ferrite & Ceramic Magnets, Ferrite Balls . Ferrite & Ceramic magnets (Ferrite Balls ) are comprised of a combination of iron oxide and strontium carbonate. Low cost, light weight, a relatively high energy product, and good resistance to demagnetization account for widespread use of Ferrite & Ceramic magnets. Ferrite & Ceramic magnets (Ferrite Balls ) have a max operating temperature of 480°F, which makes it a good choice for some high temperature applications. Common applications include: speaker magnets, motors, reed switches, and Hall-Effect devices.