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Samarium Cobalt Ring Magnet Description

Samarium cobalt ring magnets are disc magnets or cylinder magnets with a plain hole through the center of the magnet. SmCo is a widely used second-generation high energy material. Using Samarium and cobalt as its rare earth element, it exhibits high magnetic performance characteristics in energy products and coercive force. There are two compositions of magnets in this family: Sm1Co5 and Sm2Co17. The highest commercially available energy products of Sm2Co17 are in the 30MGOe range.

Samarium Cobalt Ring Magnet Application

SmCo ring magnets can be used for coreless motors, variable frequency air conditioners, oil industry dewaxing device motors, sensors, computer disc drivers, linear actuators, etc, which have good applications in the low-carbon, and energy-saving.

Stanford Magnets specializes in manufacturing and supplying SmCo ring magnets applied in various industrial applications. We have advanced technology, rich experience, and professional engineering technicians in this field. If you require a specific size, please contact us for a custom SmCo magnet quote.

FAQ

What is a SmCo ring magnet?

A SmCo ring magnet is a type of rare-earth magnet made from an alloy of samarium and cobalt, shaped into a ring with a central hole. These magnets are known for their high magnetic strength, exceptional temperature stability, and excellent resistance to corrosion.

How do SmCo ring magnets compare to Neodymium ring magnets?

SmCo ring magnets offer superior temperature resistance (up to 300°C/572°F) and corrosion resistance without the need for protective coatings. Neodymium ring magnets typically provide higher magnetic strength at room temperature but are more susceptible to corrosion and loss of magnetic properties at high temperatures.

What are the main applications of SmCo ring magnets?

They are widely used in high-performance, high-temperature environments such as aerospace, automotive, sensors, actuators, military, and medical devices. Their stability makes them ideal for applications requiring reliable performance under extreme conditions.

Can SmCo ring magnets be used in high-temperature applications?

Yes, SmCo ring magnets are particularly valued for their ability to maintain their magnetic properties at temperatures up to 300°C (572°F), making them suitable for high-temperature applications.

Do SmCo ring magnets need protective coatings?

No, SmCo magnets naturally resist corrosion and typically do not require protective coatings, which is advantageous in applications where the magnet is exposed to corrosive elements.

How strong are SmCo ring magnets?

While SmCo ring magnets are strong and provide substantial magnetic performance, they are generally not as strong as the highest grades of Neodymium magnets. However, their strength is more than adequate for many applications, especially where temperature stability and corrosion resistance are crucial.

Are SmCo ring magnets brittle?

Yes, like other rare-earth magnets, SmCo ring magnets are brittle and can chip or break if dropped or subjected to strong impacts. Careful handling is recommended to avoid damage.

What factors should I consider when choosing a SmCo ring magnet?

Consider the operating temperature, exposure to corrosive elements, required magnetic strength, and physical size and shape requirements. SmCo ring magnets are ideal for applications where high temperature and corrosion resistance are priorities.

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Samarium Cobalt Ring Magnet Description

Samarium Cobalt Ring Magnet Application

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