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Samarium Cobalt (SmCo) is a high-energy rare earth magnet material that allows for reduced size and weight while providing exceptional resistance to demagnetization.
Rare Earth Samarium Cobalt Magnets
SmCo magnets are available in multiple grades to support a wide range of applications. This material is brittle and requires diamond tooling for machining. All machining should be completed prior to magnetization. While mechanically fragile, SmCo magnets deliver strong magnetic performance and offer significantly higher temperature resistance than Neodymium.
Features
- High heat resistance and excellent temperature stability
- Strong resistance to demagnetization
- Good corrosion resistance without the need for coating
- Precision cutting, grinding, fabrication, and assembly to your specifications
Benefits
- Reliable performance in high-temperature environments
- Reduced size and weight of magnetic assemblies
- Longer service life in demanding applications
- Minimal need for protective coatings
- Custom solutions built to your exact requirements
Temperature Capability
- Operating temperatures up to 576°F (300°C), depending on grade
Typical Applications
- Aerospace and defense systems
- High-temperature electric motors and generators
- Sensors and instrumentation in extreme environments
- Oil and gas downhole tools
- Automotive components exposed to heat
- Magnetic couplings and pumps
- Medical devices and precision equipment
- Vacuum and high-temperature processing environments
A FULL list of everything available would be huge. All Grades, Sizes and Configurations are available.
If you are looking for a specific size, shape or strength that you know exists please give us a call because we can source it for you.
Frequently Asked Questions
What are Samarium Cobalt (SmCo) magnets used for?
SmCo magnets are used in high-temperature and high-reliability applications where magnetic performance must remain stable under heat and harsh environmental conditions.
How do SmCo magnets compare to Neodymium magnets?
SmCo magnets offer significantly higher temperature resistance and better corrosion resistance than Neodymium. However, Neodymium magnets provide higher magnetic strength at room temperature and are generally more cost-effective.
What is the maximum operating temperature of SmCo magnets?
Depending on the grade, SmCo magnets can operate at temperatures up to approximately 576°F (300°C) while maintaining stable magnetic performance.
Do SmCo magnets require coating?
No. SmCo magnets have good natural corrosion resistance and typically do not require protective coatings like Neodymium magnets.
Are SmCo magnets brittle?
Yes. SmCo magnets are hard but brittle and can crack or chip if mishandled. Proper mounting and handling are important.
Can SmCo magnets be machined?
Yes, but machining must be done prior to magnetization using diamond tooling. Post-magnetization machining is not recommended.
Are SmCo magnets stronger than Neodymium?
No. Neodymium magnets are stronger in terms of maximum magnetic energy. SmCo magnets are chosen for temperature stability and durability in extreme environments.
Can SmCo magnets be custom manufactured?
Yes. SmCo magnets can be produced in custom shapes, sizes, and assemblies to meet specific application requirements.