How to Make Magnet Stronger?

Ever wonder how engineers boost magnet power for high-performance uses?

You can enhance magnet strength by optimizing material, orientation, size, and processing techniques.

magnet production flow
Let’s dive into practical ways to make magnets stronger and more reliable.

How to Make Magnets Stronger?

Are you aiming for peak magnetic performance in your design?

Magnet strength depends on material grade, alignment, shape, coating, and processing control. Each plays a key role.

Boosting magnet potency

To maximize magnet power, focus on these five factors:

1. Material Selection

Choose high-performance grades like NdFeB (e.g., N52) or SmCo. These rare-earth magnets deliver superior remanence and energy density.

2. Orientation and Alignment

Use magnetic field alignment during sintering or bonding. Well-aligned domains amplify field strength significantly.

3. Shape Optimization

Shapes like cylinders and blocks concentrate flux well. Use finite element analysis to model ideal sizes.

4. Coating and Temperature Control

Apply protective coatings (Ni-Cu-Ni, epoxy) to preserve magnetism. Avoid overheating – even small temp rises can reduce remanence.

5. Advanced Processing

Consider hot isostatic pressing or compression bonding for denser, stronger magnets with fewer voids.

Factor Strategy Impact on Strength
Material Grade Select high BH max (e.g., N52) +30–50 % field increase
Alignment Use magnetic field during production +10–20 % due to domain alignment
Shape Optimize geometry +5–15 % by reducing leakage
Coating & Cooling Proper plating and stress control Maintains peak performance
Processing Density Use HIP or compression bonding Denser core, stronger field

In my work, adjusting domain alignment improved magnetic strength by 12% in one project. Choosing N52 over N35 also increased output without expanding size.

Conclusion

Improving magnet strength is a blend of smart material choice, precise alignment, optimized shape, protection, and processing. Follow these steps and see real gains.

NBAEM is a China‑based NdFeB and SmCo permanent magnet supplier for EV motors, wind turbines, magnetic separators exported to USA and Europe since 2010.If you have any inquiry, please feel free to contact us.