Radial Alnico Permanent Magnet Cast Neodymium Ring Magnets
LNG37 Alnico Magnet is a permanent magnet made of Alnico8 material, featuring customized shapes and sizes with high tolerance (±0.05mm) and various magnetization directions (Axial, Radial, Multi-poles). These superior Alnico8 magnets offer excellent magnetic properties including high remanence, high coercive force, and exceptional temperature stability for applications in electronics, automotive, industrial, military, aerospace, and medical industries.
| Attribute | Value |
|---|---|
| Type | Permanent Magnet |
| Hcj | ≥30 KA/m |
| Material | Alnico |
| Max Operating Temperature | 550℃ |
| Size | Customized |
| Shape | Customized |
| Magnetization Direction | Axial, Radial, Multi-poles |
| Tolerance | ±0.05mm |
- Very temperature stable - ideal for high heat applications
- Maximum working temperature 450-550℃
- Hard and brittle - not suitable for conventional machining
- High residual induction and energy product compared to ceramic material
- Low coercive force compared to ceramic and rare earth materials
- Most common grades: Alnico 5 and 8
- Not suited for repelling or high friction applications
| Parameter | Value |
|---|---|
| Curie Temperature | 760 ~ 890℃ |
| Max. Operating Temperature | 450 ~ 550℃ |
| Resistivity | 47 ~ 54 μΩ·cm |
| Hardness | 520 ~ 630 HV |
| Density | 6.9 ~ 7.3 g/cm³ |
| Relative Recoil Permeability | 1.7 ~ 4.7 μrec |
| Saturation Field Strength | 2.7 ~ 6.3 kOe / 215~500 kA/m |
| Temperature Coefficient of Br | -0.025 ~ -0.02%/℃ |
| Temperature Coefficient of iHc | +0.01 ~ +0.03 %/℃ |
UNMAG Alnico Permanent Magnets are widely used in:
- Generators
- Microphones
- Measuring instruments
- Motors
- Loudspeakers
- Medical instruments
Our engineering team provides expert guidance for magnet selection, application troubleshooting, and installation/maintenance advice.
We offer custom magnet design for special applications and manufacturing process assistance.
All magnets undergo rigorous testing and certification to ensure quality and performance standards are met.
Alnico Permanent Magnets are securely packaged in plastic bags, foam, or cardboard boxes and shipped in temperature-controlled environments. We use reliable shipping methods with proper documentation and insurance for international shipments.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.