Ferrite / Ceramic Permanent Magnets

Ferrite magnets are much cheaper, corrosion-resistant without coating, and stable at temperatures up to 250 °C, but roughly 8–10 times weaker magnetically per unit volume. They are ideal for cost-sensitive, high-temperature or outdoor applications.

No. Ferrite magnets are naturally corrosion-resistant and can operate without coating outdoors and in humid environments, which is why they dominate speaker, motor and separator applications.

Yes, sample orders are welcome. Send your drawing or specification together with the intended application so our engineers can recommend the correct grade, magnetization direction and coating before we prepare samples.

Yes. We machine, grind and inspect to customer drawing tolerances. For sintered NdFeB the standard machining tolerance is ±0.05 mm and can be tightened to ±0.02 mm with diamond grinding where the geometry allows.

Nickel (Ni-Cu-Ni) for general indoor use, zinc for cost-sensitive applications, and epoxy or Parylene for environments with humidity, salt or organic solvents. Our QC team can help select the best coating for your operating environment.