Samarium Cobalt Magnets
GTEK SmCo Magnets
What is SmCo Magnet?
Samarium Cobalt Magnets are abbreviated as SmCo Magnets, aka rare-earth cobalt permanent magnet. It uses the rare-earth metals samarium and cobalt as raw materials.
It is a high-performance, low-temperature coefficient permanent magnet material processed through a series of processes including batching, smelting, powdering, pressing, and sintering.
Features & Applications
Samarium Cobalt Magnets have a high working temperature of 350 ℃. When the working temperature exceeds 180 ℃, its maximum magnetic energy product and stable temperature are superior to NdFeB magnetic materials.
SmCo Magnet does not require electroplating because it is not easily corroded and oxidized.
Samarium Cobalt Magnets are widely used in aerospace, defense military, microwave devices, communications, medical equipment, motors, instruments, various magnetic transmission devices, sensors, magnetic processors, magnetic cranes and other fields.
Custom Samarium Cobalt Magnets
Samarium Cobalt Magnets are usually made into various shapes. Below are the general shapes of products produced by GTEK. To facilitate a quick quotation, it's advisable to provide a drawing or sketch along with your inquiry.
Samarium Cobalt Block Magnets
- Normal size range: L = 1-130mm, W = 0.5-130mm, T = 0.3-90mm.
- Maximum Size:
- rectangle, L130 × W100 × T50mm,
- square: L130 × W130 × T40mm,
- Minimum size: L1 × W0.5 × T 0.3mm.
Note: SmCo is easily broken due to its brittleness. For a block, if you want a relatively large size, the other size must be reduced accordingly.
Samarium Cobalt Disc Magnets
- Normal size range: D = 1-130mm, T = 0.3-120mm.
- Maximum cylinder size: D130 × T40mm, D80 × T120mm.
- Minimum cylinder size: D1 × T0.3mm
Note: For a cylinder, it is impossible to satisfy both a large diameter and a too thin thickness at the same time. Contact our experts for a larger size product.
Samarium Cobalt Arc Magnets
- Normal size range: W = 3-130mm, H = 1.5-100mm, L = 1-130mm.
- Maximum Arc size: W130 × H40 × L130mm, W80 × H50 × L130mm
- Minimum Arc size: W3 × H2 × L0.5mm
Note: For the large arc type, there should not be any thin size. If you have special requirements or want to know more detailed information, please contact our experts.
Samarium Cobalt Ring Magnets
- Normal size range: D=1.5-130mm, d=0.4-80mm, H = 0.3-120mm
- Maximum ring size: D130mm-d80mm × H60mm, outer diameter 80mm-inner diameter 50mm × H120mm
- Minimum ring size: D1.5mm-d0.4mm × H0.3mm
Note: For rings, it is not possible to satisfy a large outer diameter and a too thin wall thickness at the same time.
Samarium Cobalt Motor Magnets
- Normal size range: W = 3-130mm, H = 1.5-100mm, L = 1-130mm
- Maximum size: W130 × H40 × L130mm, W80 × H50 × L130mm
- Minimum size: W3 × H2 × L0.5mm
Note: For large motor magnets, there should not be any thin size. Other larger sizes and specifications can be achieved through better solutions. For more information, please contact our experts.
Custom Samarium Cobalt Magnets
GTEK has strong manufacturing capacity, can produce a variety of irregularly shaped magnets.
Generally, irregularly shaped magnets mean higher cost and more complicated processes, and the delivery time will be relatively longer. For more information, please contact our experts.
Grades
SmCo 1: 5 magnet
is also called SmCo5, the maximum working temperature is 250 ℃. It uses metal samarium, cobalt and metal praseodymium as raw materials, and processed by a series of processes such as melting, milling, pressing and sintering.
SmCo5 has better physical properties and ductility than Sm2Co17, so SmCo5 is easier to process into thin-walled or ring-walled shapes and other complex shapes, while Sm2Co17 is more brittle. The magnetizing magnetic field of SmCo5 is smaller than that of Sm2Co17. In general, the saturation magnetization of SmCo5 is 4000Gs, while Sm2Co17 requires a magnetic field of more than 6000Gs.
The metal cobalt content of SmCo5 is higher than that of Sm2Co17, so its price is more expensive than Sm2Co17. According to different usage environments, users can choose SmCo5 or Sm2Co17 reasonably.
SmCo 2: 17 magnet
is also called Sm2Co17, the maximum working temperature is 350 ℃. It is produced by continuous casting of metal samarium, cobalt, copper, iron, zirconium, etc. in proportion, then processed by a series of processes such as melting, milling, pressing, and sintering.
Sm2Co17 has an extremely low temperature coefficient and good corrosion resistance. Under high temperature conditions, its magnetic properties are superior to neodymium iron boron magnets, so it has been widely used in aerospace, defense, sensors and other fields.
Because Sm2Co17 material has high brittleness, it is not suitable for applications with complex shapes and thin disk or ring walls. Due to this characteristic, appearance defects such as small chips may appear in the production, inspection and magnetization process, however, it will not change its performance, we regard them as qualified products.
SmCo magnetized products must be careful in the assembly process, away from iron, to avoid mutual attraction, causing chips and cracks.
More Knowledge About SmCo Magnets
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