SmCo Disc Magnets
Coatings: Uncoated or Nickel (Ni) Coating Naturally corrosion-resistant
Applications: High-temperature environments, precision instruments, aerospace, motors, magnetic couplings, and sensors Excellent thermal stability (up to 350°C), corrosion resistance, and demagnetization resistance
Features: High energy product (BH)max: 20–32 MGOe Superior to ferrite and AlNiCo in performance Brittle and must be handled with care
Description
Reviews
As a leading SmCo Magnets manufacturer in China, MAG SPRING offers high-quality Samarium Cobalt (SmCo) Disc Magnets, available in various dimensions and grades, tailored to meet diverse application needs. These magnets provide excellent thermal stability, corrosion resistance, and magnetic performance, with options for axial or diametric magnetization and reliable coatings for enhanced durability.
Material: Samarium Cobalt (SmCo5 or Sm2Co17)
Magnetization: Axial or Diametric
Coating: Uncoated or Nickel (Ni) anti-corrosion coating
(BH)max Range: 20 to 32 MGOe
Dimensions:
-
Available sizes include D10x2, D2x2, D3x1.2, D1.5x1.5, D80x30, and more
-
Maximum diameter: 120mm
-
Minimum diameter: 1mm
MOQ: 1 piece
Lead Time: 7 to 30 days, depending on order quantity
Standard Tolerance for SmCo Disc Magnets:
|
Dimension Range (mm) |
Cylindricity (mm) |
Tolerance (mm) |
Parallelism (mm) |
|---|---|---|---|
|
1 ≤ D ≤ 5 |
0.03 |
0.03 |
0.04 |
|
5 < D ≤ 25 |
0.05 |
0.05 |
0.05 |
|
25 < D ≤ 50 |
0.05 |
0.05 |
0.05 |
|
D > 50 |
0.05 |
0.1 |
0.1 |
Features:
-
Material Properties: SmCo5 magnets are brittle and hard, prone to chipping or breaking if dropped or stuck together.
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Magnetic Performance: Higher magnetic properties compared to AlNiCo and Ferrite magnets.
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Thermal Stability: Maximum working temperature up to 350°C, superior to Ferrite and Neodymium magnets.
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Corrosion Resistance: Better resistance to corrosion compared to Neodymium magnets.
-
Demagnetization Resistance: Superior resistance to demagnetization compared to Ferrite and Neodymium magnets.
Applications:
Widely used in motors, sensors, magnetic assemblies, electronics, and other high-performance industrial and consumer applications requiring high thermal stability and corrosion resistance.
Production and Delivery:
-
Packaging: Standard packaging for air or sea shipment, customizable based on customer requirements.
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Note: Special handling recommended due to the brittle nature of SmCo magnets.
Quality and Compliance:
Manufactured under strict quality controls, fully RoHS compliant.
Magnetic Properties of SmCo Disc Magnets
| Material | Grade | Br | Hcb | Hcj | (BH)max | Tc | Tw | Br | £ Hcj) | ||||
| T | KGs | KA/m | KOe | KA/m | KOe | KJ/m3 | MGOe | %/ | %/ | ||||
| SmCO5 magnet and Sm2Co17 magnet | XGS16L | 0.81-0.85 | 8.1-8.5 | 517-669 | 6.5-8.4 | 636-955 | 8--12 | 111-127 | 14-16 | 800 | 250 | 0.020 | 0.20 |
| XGS18L | 0.85-0.90 | 8.5-9.0 | 525-708 | 6.6-8.9 | 636-955 | 8--12 | 127-143 | 16-18 | 800 | 250 | 0.020 | 0.20 | |
| XGS20L | 0.90-0.94 | 9.0-9.4 | 533-732 | 6.7-9.2 | 636-955 | 8--12 | 143-159 | 18-20 | 800 | 250 | 0.020 | 0.20 | |
| XGS22L | 0.94-0.97 | 9.4-9.7 | 533-740 | 6.7-9.3 | 636-955 | 8--12 | 159-175 | 20-22 | 800 | 250 | 0.020 | 0.20 | |
| XGS24L | 0.97-1.02 | 9.7-10.2 | 541-756 | 6.8-9.5 | 636-955 | 8--12 | 175-191 | 22-24 | 800 | 250 | 0.030 | 0.20 | |
| XGS26L | 1.02-1.05 | 10.2-10.5 | 541-764 | 6.8-9.6 | 636-955 | 8--12 | 191-207 | 24-26 | 800 | 250 | 0.030 | 0.20 | |
| XGS28L | 1.05-1.08 | 10.5-10.8 | 541-780 | 6.8-9.8 | 636-955 | 8--12 | 207-223 | 26-28 | 800 | 250 | 0.035 | 0.20 | |
| XGS30L | 1.08-1.11 | 10.8-11.1 | 541-796 | 6.8-10.0 | 636-955 | 8--12 | 223-239 | 28-30 | 800 | 250 | 0.035 | 0.20 | |
| XGS32L-A | 1.11-1.13 | 11.1-11.3 | 549-804 | 6.9-10.1 | 636-955 | 8--12 | 239-246 | 30-31 | 800 | 250 | 0.035 | 0.22 | |
| XGS32L-B | 1.13-1.15 | 11.3-11.5 | 550-805 | 6.9-10.1 | 636-955 | 8--12 | 246-255 | 31-32 | 800 | 250 | 0.040 | 0.25 | |
| XGS33L | 1.15-1.17 | 11.5-11.7 | 558-815 | 7.0-10.2 | 636-955 | 8--12 | 246-262 | 31-33 | 800 | 250 | 0.045 | 0.25 | |
| XGS16M | 0.81-0.85 | 8.1-8.5 | 573-669 | 7.2-8.4 | 955-1433 | 12--18 | 111-127 | 14-16 | 800 | 300 | 0.020 | 0.20 | |
| XGS18M | 0.85-0.90 | 8.5-9.0 | 605-708 | 7.6-8.9 | 955-1433 | 12--18 | 127-143 | 16-18 | 800 | 300 | 0.020 | 0.20 | |
| XGS20M | 0.90-0.94 | 9.0-9.4 | 637-732 | 8.0-9.2 | 955-1433 | 12--18 | 143-159 | 18-20 | 800 | 300 | 0.020 | 0.20 | |
| XGS22M | 0.94-0.97 | 9.4-9.7 | 645-740 | 8.1-9.3 | 955-1433 | 12--18 | 159-175 | 20-22 | 800 | 300 | 0.020 | 0.20 | |
| XGS24M | 0.97-1.02 | 9.7-10.2 | 661-764 | 8.3-9.6 | 955-1433 | 12--18 | 175-191 | 22-24 | 800 | 300 | 0.030 | 0.20 | |
| XGS26M | 1.02-1.05 | 10.2-10.5 | 685-788 | 8.6-9.9 | 955-1433 | 12--18 | 191-207 | 24-26 | 800 | 300 | 0.030 | 0.20 | |
| XGS28M | 1.05-1.08 | 10.5-10.8 | 693-812 | 8.7-10.2 | 955-1433 | 12--18 | 207-223 | 26-28 | 800 | 300 | 0.035 | 0.20 | |
| XGS30M | 1.08-1.11 | 10.8-11.1 | 700-828 | 8.8-10.4 | 955-1433 | 12--18 | 223-239 | 28-30 | 800 | 300 | 0.035 | 0.20 | |
| XGS32M-A | 1.11-1.13 | 11.1-11.3 | 708-852 | 8.9-10.7 | 955-1433 | 12--18 | 239-246 | 30-31 | 800 | 300 | 0.035 | 0.22 | |
| XGS32M-B | 1.13-1.15 | 11.3-11.5 | 716-860 | 9.0-10.8 | 955-1433 | 12--18 | 246-255 | 31-32 | 800 | 300 | 0.040 | 0.25 | |
| XGS33M | 1.15-1.17 | 11.5-11.7 | 726-870 | 9.1-10.9 | 955-1433 | 12--18 | 246-262 | 31-33 | 800 | 300 | 0.045 | 0.25 | |
| XGS14 | 0.74-0.81 | 7.4-8.1 | 540-609 | 7.0-7.9 | 1433 | 18 | 96--111 | 12--14 | 800 | 300 | 0.020 | 0.20 | |
| XGS16 | 0.81-0.85 | 8.1-8.5 | 597-669 | 7.5-8.4 | 1433 | 18 | 111-127 | 14-16 | 800 | 300 | 0.020 | 0.20 | |
| XGS18 | 0.85-0.90 | 8.5-9.0 | 621-708 | 7.8-8.9 | 1433 | 18 | 127-143 | 16-18 | 800 | 300 | 0.020 | 0.20 | |
| XGS20 | 0.90-0.94 | 9.0-9.4 | 653-732 | 8.2-9.2 | 1433 | 18 | 143-159 | 18-20 | 800 | 300 | 0.020 | 0.20 | |
| XGS22 | 0.94-0.97 | 9.4-9.7 | 677-740 | 8.5-9.3 | 1433 | 18 | 159-175 | 20-22 | 800 | 300 | 0.020 | 0.20 | |
| XGS24 | 0.97-1.02 | 9.7-10.2 | 693-772 | 8.7-9.7 | 1433 | 18 | 175-191 | 22-24 | 800 | 300 | 0.030 | 0.20 | |
| XGS26 | 1.02-1.05 | 10.2-10.5 | 748-796 | 9.4-10.0 | 1433 | 18 | 191-207 | 24-26 | 800 | 300 | 0.030 | 0.20 | |
| XGS28 | 1.05-1.08 | 10.5-10.8 | 756-820 | 9.5-10.3 | 1433 | 18 | 207-223 | 26-28 | 800 | 300 | 0.035 | 0.20 | |
| XGS30 | 1.08-1.11 | 10.8-11.1 | 788-836 | 9.9-10.5 | 1433 | 18 | 223-239 | 28-30 | 800 | 300 | 0.035 | 0.20 | |
| XGS32-A | 1.11-1.13 | 11.1-11.3 | 812-860 | 10.2-10.8 | 1433 | 18 | 239-246 | 30-31 | 800 | 300 | 0.035 | 0.22 | |
| XGS32-B | 1.13-1.15 | 11.3-11.5 | 820-870 | 10.3-10.9 | 1433 | 18 | 246-255 | 31-32 | 800 | 300 | 0.040 | 0.25 | |
| XGS33 | 1.15-1.17 | 11.5-11.7 | 830-880 | 10.4-11.0 | 1433 | 18 | 246-262 | 31-33 | 800 | 300 | 0.045 | 0.25 | |
| XGS14H | 0.74-0.81 | 7.4-8.1 | 557-629 | 7.0-7.9 | 1990 | 25 | 96--111 | 12--14 | 800 | 350 | 0.020 | 0.20 | |
| XGS16H | 0.81-0.85 | 8.1-8.5 | 605-669 | 7.6-8.4 | 1990 | 25 | 111-127 | 14-16 | 800 | 350 | 0.020 | 0.20 | |
| XGS18H | 0.85-0.90 | 8.5-9.0 | 629-708 | 7.9-8.9 | 1990 | 25 | 127-143 | 16-18 | 800 | 350 | 0.020 | 0.20 | |
| XGS20H | 0.90-0.94 | 9.0-9.4 | 661-732 | 8.3-9.2 | 1990 | 25 | 143-159 | 18-20 | 800 | 350 | 0.020 | 0.20 | |
| XGS22H | 0.94-0.97 | 9.4-9.7 | 685-740 | 8.6-9.3 | 1990 | 25 | 159-175 | 20-22 | 800 | 350 | 0.020 | 0.20 | |
| XGS24H | 0.97-1.02 | 9.7-10.2 | 700-772 | 8.8-9.7 | 1990 | 25 | 175-191 | 22-24 | 800 | 350 | 0.030 | 0.20 | |
| XGS26H | 1.02-1.05 | 10.2-10.5 | 756-796 | 9.5-10.0 | 1990 | 25 | 191-207 | 24-26 | 800 | 350 | 0.030 | 0.20 | |
| XGS28H | 1.05-1.08 | 10.5-10.8 | 764-820 | 9.6-10.3 | 1990 | 25 | 207-223 | 26-28 | 800 | 350 | 0.035 | 0.20 | |
| XGS30H | 1.08-1.11 | 10.8-11.1 | 796-836 | 10.0-10.5 | 1990 | 25 | 223-239 | 28-30 | 800 | 350 | 0.035 | 0.20 | |
| XGS32H-A | |||||||||||||
Mag-spring was established in 2003 and is located in Ningbo, Zhejiang Province, China. It is a comprehensive manufacturer of magnetic application products, specializing in the research, design and production of magnetic filters and various magnetic application components.
The company has a group of professional technicians and production equipment, operates strictly in accordance with the ISO9001 quality system, and continuously strengthens internal management. While the company is constantly developing, it pays attention to environmental protection. It is an ISO14001 certified enterprise, and the company's products meet the requirements of the EU ROHS directive.
Based on the enterprise tenet of "efficiency, perfection, harmony and dedication" and the enterprise slogan of "everything we handle must be excellent", with many years of experience in research, design, manufacturing and sales in the field of magnetic products, the company's products have been recognized by many customers at home and abroad. We will sincerely look forward to cooperating with you with high-quality products, preferential prices and the best services.
