Product Information / NdFeB·SmCo
Shin-Etsu's N Series neodymium magnets-composed of neodymium (Nd), iron (Fe), and boron (B)-boast the highest performance of all rare earth magnets. As neodymium is relatively abundant, the cost of these devices is also more reasonable than that of comparable classes of clasamarium (Sm) magnets. Application of Nd magnets is expanding rapidly in various fields as their cost/performance advantages gain recognition. Corrosion resistance, formerly considered to be a drawback, has been improved through various types of surface processing, including nickel(Ni)plating. As a result, these magnets now deliver optimal performance for virtually any application.
The thermal characteristics of Shin-Etsu R Series samarium magnets are superior to those of Nd magnets, maintaining high magnetism and reliability even in challenging high-temperature and opposed magnetic-field environments. Sm magnets also offer high Curies temperatures with less coercivity temperature change - properties unmatched by other magnets.
Other R Series advantages include high performance and energy output, thanks to the application of Sm2Co17 compound rather than conventional crystalline SmCo5 - a result of detailed metallurgical analysis. Our R33H Series are recognized as the world's best Sm magnets, with characteristics approaching those of Nd magnets.