Where are Samarium Cobalt Magnets Useful?
All the information you need to be an informed buyer of Samarium Cobalt Magnets right here, for free!
Samarium Cobalt Magnets are among the second most common rare earth magnets.
They can be used in temperatures on both the hottest and coldest end of the spectrum (although some swings of temperature have more impact on SmCo magnets than others).
Most informed magnet buyers ask about 6 aspects of the magnet they want to purchase. Below is everything you need to know before placing an order for SmCo magnets.
Uses of Samarium Cobalt Magnets
Samarium Cobalt (SmCo) magnets are a type of rare earth magnet known for their high resistance to demagnetization, making them highly useful in various applications. They have high coercivity, which means they can maintain their magnetic strength in the presence of strong magnetic fields and resist demagnetization. This property makes them suitable for applications where they may be exposed to high temperatures, strong magnetic fields, and mechanical shocks.
Applications in Electronics and Motors
Samarium Cobalt magnets are widely used in the electronics industry due to their high energy density and low temperature coefficient. These magnets are commonly used in:
Electric motors: SmCo magnets are used to create high-performance electric motors due to their ability to maintain their magnetic properties under high temperatures and strong magnetic fields.
Headphones: SmCo magnets are used in high-end headphones to provide better sound quality and improved bass response.
Hard disk drives: SmCo magnets are used in hard disk drives for data storage due to their high coercivity and high resistance to demagnetization.
Electronic switches: SmCo magnets are used in electronic switches for their high energy density and low temperature coefficient, allowing them to maintain their performance in harsh environments.
Applications in Aerospace and Defense
Samarium Cobalt magnets are also used in various aerospace and defense applications due to their high resistance to demagnetization and their ability to function in extreme environments. These magnets are used in:
Satellite components: SmCo magnets are used in satellite components, such as attitude control systems, due to their high resistance to demagnetization and their ability to function in extreme temperatures and vacuum conditions.
Aircraft engines: SmCo magnets are used in aircraft engines to improve their efficiency and reduce fuel consumption.
Weapons systems: SmCo magnets are used in weapons systems, such as missiles and projectiles, to provide high-performance magnetic components that can withstand extreme temperatures and mechanical stress.
The main characteristics of SmCo magnets
Durability in SmCo magnets is renowned. They display excellent corrosion resistance, to the point where they don’t need any corrosion protection. Magnetization integrity is high in SmCo magnets, as they resist demagnetization handily.
Temperature stability in SmCo magnets is excellent. They can operate in conditions up to 500C without suffering any magnetization loss.
Grades and shapes of SmCo magnets are varied, so they can suit a wide variety of application requirements. Magnets can be shaped and sized in any configuration you can imagine in our custom machining shop. The maximum grade of a SmCo magnet is 28 MGOe.
Common applications include use in the automotive, marine, medical, aerospace, military, industrial automation and similar industries where high performance is critical. Think pumps, motors, machinery, medical devices and so on.
Bonding applications are common for SmCo magnets. They are regularly assembled into products using epoxies where the surface is properly prepared (clean and dry).
?Safety procedures are important to maintain, as these magnets can snap together with great force. They are also hard and brittle, and can shatter into sharp, dangerous objects. They have been known to chip when snapping together from large distances, but also when dropped at an unfortunate angle. Make sure all personnel handling these magnets can handle with care.
Compared with Neodymium?
SmCo magnets are not as high in energy as Neodymium magnets, but they excel in high temperature conditions where Neodymium magnets do not.
SmCo magnets are the more expensive of the two, but is by far the best product when power and high temperature resistance is required.
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