In industrial manufacturing, we often use magnets, especially in motors, generators and actuators, there are many types of commonly used magnets and components. Next, let's look at the introduction of samarium cobalt magnets

​​Samarium Cobalt（SMCO）Produced in the 1970s, before Ndfeb magnets, one of the benefits of using SmCo is that they are less prone to corrosion and have better temperature resistance. This means that it can maintain its magnetic properties at extremely high or very low temperatures, which is a good choice for applications with abnormally high or very low temperatures, however, their power is slightly weaker than Ndfeb magnets. Its high magnetic strength, excellent temperature resistance and reliable performance without oxidation protection are ideal for high temperature motor applications, and samarium cobalt magnets are a relatively powerful type.​

Samarium-cobalt magnet​

Corrosion resistance: Samarium cobalt magnets have excellent corrosion resistance (neodymium magnets do not), and most applications do not require plating or surface coating, which makes them beneficial for medical applications.

Temperature stability: Samarium cobalt magnets can withstand higher temperatures than neodymium magnets, the maximum operating temperature of samarium cobalt magnets is between 250 and 550°C, and the Curie temperature range is 700 to 800°C​

Rare earth magnets (samarium cobalt and neodymium) or ferrite (ceramic) magnets can be used in magneto and automotive magnet applications, and rare earth magnets are typically 2 to 3 times stronger than ferrite or ceramic permanent magnets. In motors, this makes smaller, lighter motors with higher performance, however, rare earth magnets are also more expensive than ferrite (ceramic) options