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SmCo Magnets

Samarium Cobalt (SmCo) magnet is a high performance, low temperature coefficient permanent magnet, which made of samarium, cobalt and other rare earth elements. The biggest advantage is its high working temperature, the maximum working temperature is up to 300℃. It doesn't need to be coated because it is difficult to be eroded and oxidized. Samarium Cobalt magnet is widely used in motor, sensor, meter, electronic, watch, automobile, aviation and other applications. There are two alloy series for SmCo magnets: SmCo5 and Sm2Co17(Magnetic Properties of Sintered SmCo Magnets).


SmCo Magnets SmCo Magnets SmCo Magnets SmCo Magnets


Magnetizing and Handling
Samarium Cobalt magnets are very brittle and very strong magnetically. Therefore, it is crucial to handle these magnets with extreme care to avoid personal injury and damage to the magnets. Fingers can be severely pinched between attracting magnets. Magnets can chip if allowed to “jump at” an attracting object. It is highly recommended that when constructing rare earth magnetic assemblies, they be magnetized after assembly.

Samarium Cobalt Machining
Since Samarium Cobalt magnet material is prone to chipping and cracking, it does not lend itself to conventional machining methods. It can, however, be abrasively ground, but only with the use of liberal amounts of coolant. The coolant minimizes heat fracturing and the risk of fires caused by oxidized grinding dust.

Applications of Samarium Cobalt Magnets
Computer disc drives
sensors
traveling wave tubes
linear actuators
satellite systems
motors where temporary stability is vital.

Tolerances
For as pressed material, tolerance on the thickness (direction of magnetization) is ± .005. Other dimensions are ± 2.5% or ± .010, whichever is greater.According to IMA standards, visual imperfections such as hairline cracks, porosity and minor chips are commonly found in sintered metallic magnets. A chipped edge is considered acceptable if no more than 10% of the surface is missing. Cracks are acceptable as long as they do not extend across more than 50% of pole surface.

Company: Fuzhou AOMAG Magnetics Co.,Ltd.
Add: Jinshan Industrial Zone, Cangshan, Fuzhou, P.R,China
Tel: 86-0591-86397993    Fax: 86-0591-86399173
Mail:     Skype: Danielle.omagnet
AOMAG Magnetics is a professional manufacturer and exporter of permanent magnet (NdFeB, Alnico, Smco & Ferrite) and Magnetic Assemblies in China since 1996. AOMAG Magnetics, the leading magnet brand in China. Our annual production capacity is 8000 tons. We own a complete production chain and perfect quality assurance system. We are an IATF 16949:2016, ISO 14001:2015 & ISO 45001:2018 certified company. 
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