Rare Earth SmCo Countersunk Magnet Item NO. MPCO-SCR series
Material: Samarium Cobalt
Shape: ring, countersunk
Grade:Smco5,Sm2Co17 etc.
Magnetic properties:Hcj,Hcb,BH,Br,BHmax,working temperature.
Application:widely used in sensor,speakers,reed switches,motor,rotor,wind turbines/generators,AC/DC motors,drive motors,servo motors etc.
Magnetization directions:by Axial or by radial.
SmCo Magnet is foremost choice for applications which require extreme temperature resistance and limited space is another factor. It is widely utilized for military, sensor, automotive, and aerospace industries. This magnet is known to show excellent stability in adverse conditions with high amount of durability. SmCo Magnet is highly appreciated for having ability to bear -273 degrees to +350 degrees Celsius conditions. As it contains no iron, this magnet shows great resistance to corrosion. tube ring smco permanent magnet
Rare Earth SmCo Countersunk Magnet Features:
Require no special surface treatment
Supreme thermal stability
Great magnetic properties
Physical performance sheet of sintered SmCo
| parameters | SmCo5 | Sm2Co17 |
| αBr (%/ ℃ ) | -0.04 | -0.03 |
| αHcj (%/ ℃ ) | -0.3 | -0.2 |
| Curie teperature(℃) | 700-750 | 800-850 |
| density (g/cm3 ) | 8.2-8.4 | 8.3-8.5 |
| Webster hardness (HV) | 450-500 | 500-600 |
| Working temperature ( ℃ ) | 250 | 350 |
The Magnetic Properties of Sintered SmCo magnets
| acteristics | Residual Flux Br | Coercive Force Hcb | Intrinsic Coercive Force Hcj | Max. Enery Product(BH)max | Curie Temp Tc | Density ρ | Temp.Coefficient △Bd/Bd | Thermal Expansion coefficient | Vickers Hardness | ||
| Material Grade | Tesal (kGs) | KA/m (kOe) | KA/m (kOe) | kJ/m3 (MGOe) | (℃) | g/cm3 | (％/℃) | C⊥ (1℃) | C∥ (1℃) | Hv | |
| 1:5 SmCo5 | SM~18 | 0.80~0.90 (8.0~9.0) | 621~700 (7.8~8.8) | ≥1990 (≥25.0) | 127~159 (16.0~20.0) | 750~800 | 8.2~8.4 | -0.05 | 13×10-6 | 6×10-6 | 450~500 |
| SM~20 | 0.90~0.95 (9.0~9.5) | 676~740 (8.5~9.3) | ≥1432 (≥18.0) | 151~167 (19~21) | 750~800 | 8.2~8.4 | -0.05 | 13×10-6 | 6×10-6 | 450~500 | |
| SM~22 | 0.95~1.00 (9.5~10.0) | 716~756 (9.0~9.5) | ≥1194 (≥15.0) | 167~183 (21~23) | 750~800 | 8.2~8.4 | -0.05 | 13×10-6 | 6×10-6 | 450~500 | |
| 2:17 Sm2 (Co,Cu,Fe,Zr) 17 | SM~18T | 0.85~0.95 (8.5~9.5) | 636~716 (8.0~9.0) | ≥1592 (≥20.0) | 127~159 (16.0~20.0) | 850~900 | 8.3~8.5 | -0.01 | 11×10-6 | 8×10-6 | 500~600 |
| SM~22T | 0.95~1.00 (9.5~10.0) | 676~756 (8.5~9.5) | ≥1592 (≥20.0) | 159~191 (20.0~24.0) | 850~900 | 8.3~8.5 | -0.01 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~22L | 0.95~1.00 (9.5~10.0) | 477~637 (6.0~8.0) | 493~716 (6.2~9.0) | 159~191 (20.0~24.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~22H | 0.95~1.00 (9.5~10.0) | 557~756 (7.0~9.5) | 637~1194 (8.0~15.0) | 159~191 (20.0~24.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~22U | 0.95~1.00 (9.5~10.0) | 716~796 (9.0~10.0) | ≥1990 (≥25.0) | 159~191 (20.0~24.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~26L | 1.00~1.08 (10.0~10.8) | 477~637 (6.0~8.0) | 493~716 (6.2~9.0) | 191~223 (24.0~28.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~26H | 1.00~1.08 (10.0~10.8) | 557~836 (7.0~10.5) | 637~1194 (8.0~15.0) | 191~223 (24.0~28.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~26U | 1.00~1.08 (10.0~10.8) | 756~836 (9.5~10.5) | ≥1990 (≥25.0) | 191~223 (24.0~28.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~28L | 1.04~1.10 (10.4~11.0) | 477~637 (6.0~8.0) | 493~716 (6.2~9.0) | 207~239 (26.0~30.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~28H | 1.04~1.10 (10.4~11.0) | 557~836 (7.0~10.5) | 637~1194 (8.0~15.0) | 207~239 (26.0~30.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~28U | 1.04~1.10 (10.4~11.0) | 756~836 (9.5~10.5) | ≥1990 (≥25.0) | 207~239 (26.0~30.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~30L | 1.08~1.12 (10.8~11.2) | 477~637 (6.0~8.0) | 493~716 (6.2~9.0) | 223~247 (28.0~31.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~30H | 1.08~1.12 (10.8~11.2) | 557~836 (7.0~10.5) ~10.2).0~10.5) | 637~1194 (8.0~15.0) | 223~247 (28.0~31.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~30U | 1.08~1.12 (10.8~11.2) | 796~859 (10.0~10.8) | ≥1990 (≥25.0) | 223~247 (28.0~31.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
| SM~32 | 1.10~16 (11.0~11.6) (26.0~30.0) | 557~836 (7.0~10.5) | ≥637 (≥8.0) | ≥239 (≥30.0) | 800~850 | 8.3~8.5 | -0.03 | 11×10-6 | 8×10-6 | 500~600 | |
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