Plastic-bonded permanent magnets are mixed with different polymers during the manufacturing process. Plastic-bonded ferrites and plastic-bonded NdFeB permanent magnets are available as options.
The advantage of these magnets lies in the flexibility of producible geometries. Since the magnetic powder is injected or pressed into a mold, production also allows more complex shapes or systems connected to other parts, which cannot be achieved with conventional permanent magnets. Plastic-bonded permanent magnets are often used in sensor technology or in motor applications where a high degree of tolerances must be maintained.
However, in comparison to sintered materials, the magnetic potential of plastic-bonded materials cannot be fully exploited without the addition of plastics.