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SmCo Magnets


SmCo magnets (also called Samarium Cobalt magnets) are consist of Sm (samarium), Co (cobalt), and other elements like Hf(hafnium) or Zr(zirconium), they are part of the permanent rare earth magnet family, there are two main types, the composition of SmCo5 is samarium 37% and cobalt 63%, while Sm2Co17 is: samarium 25%, copper 5%, iron 18%, hafnium or zirconium 2%.


As a reputable magnet manufacturer in China, RiSheng has various high quality SmCo magnets for sale, all with affordable prices. The advantages of SmCo magnets supplied by our factory are strong magnetic strength, high-temperature resistance, and reliable performance against corrosion, they can keep their magnetic properties in very high-temperature conditions, the maximum working temperature of SmCo5 is 250℃, while Sm2Co17 is 350℃.


Types of SmCo Magnets


Samarium Cobalt Magnet
Samarium Magnets
Sm2co17 Magnet
Smco Magnet
Smco Magnet Grades


Grades of SmCo Magnets


Grades of SmCo Magnets


Manufacturing method of SmCo Magnets

SmCo magnets are produced by sintering process, but also can be produced by injection molding and compression bonding, for sintered SmCo magnets, samarium, cobalt, and other transition metals will be made into micro size SmCo powders, these powders are compacted into a rigid steel mold and pressed, after that sintered at a very high temperature, similar shapes as the final product will be produced, then machined to final size with a good surface finish.


SmCo magnets are hard and brittle, they are easily chipping and cracking, so the machining must be done by the water-cooled diamond-coated grinding machine.


Magnetizing & Surface treatment of SmCo Magnets

All SmCo magnets are anisotropic, they are treated and cooled in a magnetic field, then oriented with a preferred magnetic direction with maximum magnetic direction, the extremely high magnetic field is required due to high coercive force, they can only be magnetized along the oriented direction, multi-poles magnetized is also possible with the special magnetizing fixture.


The corrosion-resistant of SmCo magnets is considered good, no surface coating is necessary, but the coatings like NiCuNi, Zn, Black epoxy can be plated if required.


Applications of SmCo Magnets

SmCo magnets are widely used in the wind, power, medical, aerospace, military, automotive, semiconductor, oil, and energy industry of very high or low-temperature environments, the most common applications are wind turbine equipment, electric motors, turbomachinery, medical devices, accelerometer, particle accelerators, magnetic couplings, sensor systems, magnetic separation devices, high-performance motors, actuators, automation equipment, robotic arms,  pipeline inspection, magnetic bearings, traveling wave tubes, robotic arms, magnetic drive components, generators, energy recovery systems, pipeline inspection, magnetic bearings and more.



Contact Us

Company:  Ningbo Risheng Magnets Co.,Ltd

Address:  No.157 Shangyang Road, Yinzhou, Ningbo, 315000, China

Tel:  +86-574-28850393

Fax:  +86-574-28850383

E-mail:  sales@rishengmagnets.com

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