Permanent Samarium Cobalt (SmCo) Magnet
| Material | Samarium (Sm), Cobalt (Co) | |
|
Grade |
YXG20, YXG24, YXG28, YXG30, YXG32, YXG30H, YXG32H, etc. | |
| Max operating temperature | Up to 250℃ (SmCo₅), 300℃ (ordinary SmCo₁₇), high-temperature grades up to 350℃ (high-coercivity SmCo₁₇) | |
| Size | Customized according to customer drawings, ranging from micro-size to large-size | |
| Shape | Block, cylinder, disc, ring, arc, segment, special-shaped parts, multi-pole ring, embedded structure | |
| Plating | Customized(Ni-Cu-Ni,Exopy,Gold, etc) | |
| Size Tolerance | Machined products ±0.05mm; high-precision parts (for aerospace/sensors) up to ±0.01mm | |
| Density | 8.2~8.4 g/cm³ | |
| Br | 0.80~1.15 T | |
| Hcj | 1000~2400 kA/m | |
| (BH)max | 160~255 kJ/m³ | |
| Magnetization | Axially, Diametrally, Multi-pole, Radially, etc | |
| Applications | Samarium Cobalt(SmCo) Magnet are widely applied in aerospace, national defense and military industries, communications, medicine, instruments and meters, motors, etc., where the stability of magnetic bodies is highly required. |
Sintered SmCo magnets are produced through smelting, milling, magnetic field pressing, high-temperature sintering and precision machining.
With excellent temperature stability and high corrosion resistance, they are ideal for high-temperature, high-precision and harsh environment applications.
1.Processing Adaptability
SmCo is a hard and brittle material with high hardness (HRC 55~60), so it is mainly processed by grinding, wire EDM, laser cutting (thin parts ≤3mm) and special machining. It is not suitable for conventional turning, milling or stamping to avoid chipping and cracking.
2.Processing Equipment & Capability
We are equipped with high-precision grinding machines, medium/high-speed wire-cut EDM machines, diamond drilling tools, and custom fixtures, supporting small-batch trial production (MOQ ≥50pcs) and mass production (monthly output ≥100,000pcs), with stable processing consistency.
-Mechanical Processing
We provide grinding, cutting, multi-wire slicing and surface finishing to achieve tight dimensional tolerances and excellent flatness.
-EDM & Special Profile Processing
Suitable for complex-shaped, thin-wall and high-hardness parts with low mechanical stress, effectively reducing chipping and cracking.
-Drilling & Special Shaping
Professional fixtures and tools are used for drilling, countersinking and special profile processing to ensure high precision and stability.
3.Shape
We produce various shapes, including blocks, cylinders, discs, rings, arcs, segments, special-shaped parts and embedded structures.Complex profiles for high-temperature motors, sensors and precision instruments can be customized according to drawings.
4.Surface Treatment
SmCo has excellent natural corrosion resistance; coating is usually optional.Common treatments:
- Passivation 钝化处理
- Ni-Cu-Ni plating 镍铜镍镀层
- Epoxy coating 环氧涂层
- Zinc plating 镀锌 (for special needs)（特殊需求）
5.Magnetization Direction
Supports high-precision magnetization in full directions, including axial, radial, single-pole, multi-pole and Halbach array magnetization.Uniform and stable magnetic poles without weak poles or magnetic flux leakage.Suitable for high-temperature motors, sensors and encoders with strict magnetic field requirements.Customizable magnetization solutions available according to customer requirements.
6.Application Fields
- High-temperature motors, servo motors, high-speed motors
- Aerospace, automotive electronics, precision sensors
- Military equipment, medical devices, precision instruments
- Industrial automation, magnetic couplings, high-temperature components
7.Compliance, safety, and high quality
- Comply with RoHS, REACH
- Magnetic test report, dimension inspection report available
- Strict inspection on dimensions, magnetic properties and appearance
How to get a best quote?
After confirming the above details or if you have any futher questions, we would love to receive your email or messages. We will calcualte the price ASAP according to your order/sample quantity,and respond to your concerns.
