Magnetic Materials Engineered for Motors, Sensors and Demanding OEM Applications.
NdFeB, SmCo, Ferrite, AlNiCo and flexible magnetic materials, with custom shapes, grades, coatings and magnetization options.
NdFeB Magnets
Neodymium-iron-boron — the strongest permanent magnet material. Grades N35–N54 with temperature ratings up to 200°C.
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SmCo Magnets
Samarium cobalt for high-temperature and corrosive environments. SmCo 1:5 and 2:17 series, up to 350°C.
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Ferrite Magnets
Ceramic hard ferrite (SrO·Fe₂O₃) — the workhorse of cost-efficient magnetics. Excellent corrosion resistance.
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AlNiCo Magnets
Aluminum-nickel-cobalt alloys with exceptional temperature stability up to 450°C+ for instrumentation.
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Flexible Magnets
Rubber-bonded ferrite in sheets, strips, and profiles — ideal for signage, gaskets, and sensors.
View specifications →Choosing the Right Material
Key trade-offs at a glance.
| Material | Max Energy Product | Max Operating Temp | Corrosion Resistance | Relative Cost | Best For |
|---|---|---|---|---|---|
| NdFeB | 35–54 MGOe | 80–200°C (grade-dependent) | Low (needs coating) | $$$ | Motors, sensors, high-performance applications |
| SmCo | 16–32 MGOe | 250–350°C | Good | $$$$ | Aerospace, high-temp, corrosive environments |
| Ferrite | 1–5 MGOe | 250°C | Excellent | $ | Motors, speakers, separators — cost-sensitive volume |
| AlNiCo | 1–9 MGOe | 450°C+ | Good | $$ | Instruments, meters, temperature-stable applications |
| Flexible | 0.5–1.7 MGOe | 80–100°C | Good | $ | Signage, gaskets, crafts, sensors |
Any Shape, Any Tolerance
Blocks, discs, rings, arcs, and custom geometries. Tight tolerances via centerless grinding and profile machining — down to ±0.02mm on critical dimensions.
Full Coating Options
Ni-Cu-Ni, epoxy, zinc, phosphate, and Parylene coatings. Salt-spray tested to your spec. We recommend coating based on your operating environment — not just what's cheapest.
Magnetization In-House
Axial, radial, diametric, and multi-pole magnetization patterns. We verify flux output on every magnetized lot before shipment.
What to Include in Your RFQ
The more we know upfront, the faster we recommend the right grade at the right cost.
Application & Performance
- ✓Drawing or sketch — even hand-drawn
- ✓Required magnetic performance, or describe the application
- ✓Maximum operating temperature
Environment & Coating
- ✓Operating environment — humidity, salt exposure, chemicals
- ✓Coating preference, or let us recommend based on environment
- ✓Salt-spray or humidity test requirement, if specified
Volume & Logistics
- ✓Annual volume estimate
- ✓Magnetization pattern — axial, radial, diametric, multi-pole
- ✓Delivery destination and Incoterms preference
Owned Magnet Manufacturing
Ningbo Empire owns its magnet manufacturing operations. Start with the grade, geometry and operating conditions, then confirm the producing site and the inspection plan for your order.
NdFeB Magnets
Neodymium iron boron, N35–N54
Review production requirements →SmCo Magnets
Samarium cobalt, high temp
Review production requirements →Ferrite Magnets
Ceramic, cost-efficient
Review production requirements →AlNiCo Magnets
Aluminum nickel cobalt
Review production requirements →Flexible Magnets
Rubber-bonded, isotropic
Review production requirements →Have a Drawing or Specification?
Send it to our team for engineering review and quotation — tell us your application and our engineers will recommend the most cost-effective grade that meets your performance requirements.