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High Performance SmCo Magnet Manufacturer

Sm2Co17-based magnets are still playing an irreplaceable role in the permanent magnet industry due to its unique high temperature magnetic properties and superior magnetic stability, then it always serving to the high-speed motors, electronic communication, and aerospace. High energy product magnets are the important basis to accelerate miniaturization and high efficiency of the device. Thus, obtain high performance SmCo magnet has always been a goal since the advent of Sm2Co17.
Although the remanence and magnetic energy product of high-performance samarium cobalt (XGS33H and XGS35H) are lower than the N42EH and N38AH grades of neodymium iron boron at lower temperatures, their remanence and magnetic energy product are significantly higher at higher temperatures than the N42EH and N38AH grades of neodymium iron boron. With the increase of temperature, the remanence and magnetic energy product of N42EH and N38AH grades of neodymium iron boron deteriorate rapidly, especially the coercivity. However, high-performance samarium cobalt still retains high magnetic properties and exhibits excellent thermal stability.

High Performance SmCo Magnet
High Performance Samarium Cobalt Magnet

High magnetic energy product, high remanence, and high coercive force are commonly used in various fields such as high-speed motors, traction motors, and magnetic couplers. Excellent thermal stability and high magnetic retention at high temperatures.

  • High temperature resistant magnet
  • Low temperature coefficient magnet

  • The use temperature of the magnet is greater than 550℃, which is much higher than the use temperature of ordinary samarium cobalt magnets (350℃). Generally, the coercivity of samarium cobalt at 550℃ is 2 kOe. Our high-temperature resistant magnets still have a coercive force of 6.51 kOe at 550℃, with a magnetic loss of less than 5%.


  • Within a certain temperature range, remanence basically does not change with temperature. We produce zero temperature coefficient magnets (remanence temperature coefficient is less than 0.05%) and positive temperature coefficient magnets (remanence temperature coefficient is positive).
    Low temperature coefficient magnets are commonly used in various precision instruments, gyroscopes, autonomous driving, and other fields.


About Our Company

Magnetic material core technology research and development team

Hangzhou Zhiyu Magnetic Technology Co., Ltd. is China High Temperature Resistant SmCo Magnet manufacturers and High performance Sm2Co17 magnet factory. Hangzhou Zhiyu Magnetic Technology Co., Ltd. is located in Tonglu County, Hangzhou City. It mainly focuses on the research and production of samarium cobalt permanent magnetic materials and magnetic components, and also sells magnetic steel and magnetic components such as neodymium iron boron and aluminum nickel cobalt.
The products are widely used in industries such as national defense and military, aerospace, permanent magnet (high-speed) motors, hydrogen energy compressors, automotive electronics, 5G communication, petrochemical, instrumentation, etc. The variety of samarium cobalt products is complete, with an annual production capacity of over 200 tons;
Fully covering the entire series of samarium cobalt grades of 1:5 and 2:17, covering the entire series of Br0.5T-1.2T;
Stable production of high-performance samarium cobalt magnetic steel with Br ≥ 1.16T and Hcj≥25KOe;
Stable production of Br≥0.96T low-temperature coefficient series products, with residual magnetic temperature coefficient a<-0.01%;
Stable production of ultra-high temperature (temperature resistance ≥ 550 ℃) and high Br (Br ≥ 1.02T) samarium cobalt magnetic steel;
Provide one-stop services from design to product application.

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What are the characteristics of high-performance SmCo magnets?
High-performance SmCo (samarium cobalt) magnets exhibit several characteristics that distinguish them from standard SmCo magnets. Here are some key characteristics of high-performance SmCo magnets:
High Magnetic Strength: High-performance SmCo magnets have exceptionally strong magnetic properties, providing a high magnetic energy product. They can generate strong magnetic fields, making them suitable for applications that require robust magnetic performance.
Enhanced Temperature Stability: High-performance SmCo magnets exhibit superior temperature stability compared to standard SmCo magnets. They can maintain their magnetic properties at elevated temperatures, typically with a higher Curie temperature (around 800 degrees Celsius). This property enables their use in high-temperature environments where other magnets may lose their magnetic strength.
Excellent Coercivity: Coercivity refers to a magnet's ability to resist demagnetization. High-performance SmCo magnets possess a high coercive force, allowing them to retain their magnetic strength even when exposed to external magnetic fields or mechanical shocks. This property ensures their reliability and stability in demanding applications.
Superior Corrosion Resistance: High-performance SmCo magnets typically exhibit enhanced corrosion resistance. They are less susceptible to degradation or damage caused by exposure to moisture, humidity, or certain corrosive environments. This property contributes to their longevity and reliability in various applications.
Customizable Shapes and Sizes: High-performance SmCo magnets can be manufactured in various shapes and sizes, enabling customization for specific application requirements. This flexibility in design allows for optimal integration into diverse systems and devices.
Precision and Tight Tolerances: High-performance SmCo magnets can be produced with precise dimensions and tight tolerances. This ensures consistent magnetic performance and facilitates their integration into assemblies or systems with critical dimensional requirements.
High Cost: Compared to other magnet materials, high-performance SmCo magnets tend to be relatively expensive. The cost is primarily attributed to the scarcity of the raw materials and the complex manufacturing process involved in producing magnets with exceptional performance characteristics.
High-performance SmCo magnets find applications in industries such as aerospace, defense, motors and generators, sensors, high-temperature devices, and other demanding environments where strong magnetic fields, temperature stability, and reliability are crucial factors.
What are the applications that require high-performance SmCo magnets?
What are the characteristics of high-performance SmCo magnets?
High-performance SmCo (samarium cobalt) magnets exhibit several characteristics that distinguish them from standard SmCo magnets. Here are some key characteristics of high-performance SmCo magnets:
High Magnetic Strength: High-performance SmCo magnets have exceptionally strong magnetic properties, providing a high magnetic energy product. They can generate strong magnetic fields, making them suitable for applications that require robust magnetic performance.
Enhanced Temperature Stability: High-performance SmCo magnets exhibit superior temperature stability compared to standard SmCo magnets. They can maintain their magnetic properties at elevated temperatures, typically with a higher Curie temperature (around 800 degrees Celsius). This property enables their use in high-temperature environments where other magnets may lose their magnetic strength.
Excellent Coercivity: Coercivity refers to a magnet's ability to resist demagnetization. High-performance SmCo magnets possess a high coercive force, allowing them to retain their magnetic strength even when exposed to external magnetic fields or mechanical shocks. This property ensures their reliability and stability in demanding applications.
Superior Corrosion Resistance: High-performance SmCo magnets typically exhibit enhanced corrosion resistance. They are less susceptible to degradation or damage caused by exposure to moisture, humidity, or certain corrosive environments. This property contributes to their longevity and reliability in various applications.
Customizable Shapes and Sizes: High-performance SmCo magnets can be manufactured in various shapes and sizes, enabling customization for specific application requirements. This flexibility in design allows for optimal integration into diverse systems and devices.
Precision and Tight Tolerances: High-performance SmCo magnets can be produced with precise dimensions and tight tolerances. This ensures consistent magnetic performance and facilitates their integration into assemblies or systems with critical dimensional requirements.
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