Hard ferrite magnet, made by molding powder mixture of about 80% Fe2O3 and about 20% either BaCo3 or SrO3, is also called ceramic magnet. Along with deepening of research, some additives such as cobalt (Co) and lanthanum (La) are mixed together to improve the magnetic performance. The molded powder metallic green is sintered inside a temperature controlled furnace what is heated with electricity or coal. Though hard ferrite magnet is with low magnetic property, it is still a preferable choice to engineer in their design due to several factors: abundantly available raw material.the cheapest cost among permanent magnet family, low density, excellent stability of chemistry, high maximum working temperature and Curie temperature.
Gathering around our company, there are more than 60 companies have been producing hard ferrite magnet in the same city since year 1983. In the past years they have been aggressively developing new magnet to meet demand of market, continuously innovating technique to enhance efficiency and save cost, strictly execute ISO9001, ISO/TS16949 and 6sigm to improve quality, firmly adhere environmental system ISO14000 for promise of green production. The growth of these companies offers extensive and competitive sources for supplying hard ferrite magnet to our global customer.