Hard Ferrites
Hard ferrite magnets are made of iron oxide and strontium. Each raw material is mixed, granulated and pre-sintered (calcined) according to its quality.
This pre-sintered material is ground and then pressed dry or wet either without a magnetic field (isotropic) or in a magnetic field (anisotropic).
The magnets are then sintered. Depending on the desired tolerance level, the magnets can be ground with diamond wheels.
Our range includes a large selection of hard ferrite magnets in a wide variety of designs. As the manufacturer, we can also offer you products that are custom made according to your unique requirements.
- Sensor technology
- Engine manufacturing
- Filter technology
- Filter technology
- Engine manufacturing
- Sensor technology
Models of our flat holding magnets | HF
| Material | Br [mT] | bHc [KA/m] | iHc [KA/m] | (BH) max [KJ/m3] | Density [g/cm3] | Tw [max. C°] | Shop |
|---|---|---|---|---|---|---|---|
| HF 8/22 | 220 | 140 | 230 | 8.5 | 4,8 | 250 | |
| HF 8/26 | 220 | 140 | 270 | 8.5 | 4,8 | 250 | |
| HF 24/23 | 365 | 220 | 240 | 22.5 | 4,8 | 250 | |
| HF 26/24 | 380 | 230 | 250 | 27 | 4,8 | 250 | |
| HF 28/26 | 395 | 255 | 275 | 30 | 4,85 | 250 | |
| HF 28/28 | 395 | 270 | 290 | 30 | 4,85 | 250 | |
| HF 30/26 | 405 | 250 | 270 | 31.5 | 4,85 | 250 |
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What are hard ferrites?
Hard ferrites are magnetic materials used in a wide range of applications, particularly in electrical engineering and magnet technology. They are characterized by their high magnetic stability and temperature resistance.
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What are the advantages of hard ferrites?
Hard ferrites offer high magnetic energy, are cost-effective to manufacture, and have good corrosion resistance. They are ideal for applications that require a strong and stable magnetic force.
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In which applications are hard ferrites used?
Hard ferrites are used in loudspeakers, motors, transformers, sensors, and many other electrical devices where strong and long-lasting magnetic fields are needed.
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How are hard ferrites manufactured?
Hard ferrites are produced by sintering iron oxide and barium or strontium carbonate at high temperatures. This process ensures the desired magnetic properties and dimensional stability.
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Are hard ferrites environmentally friendly?
Yes, hard ferrites are considered environmentally friendly because they are made from natural raw materials and contain no harmful chemicals. They are also recyclable.
