Permanent magnets

You can choose between four types of magnetic alloys. Each alloy serves a specific purpose. The most important differences are in the strength and resistance to demagnetization. The resistance to demagnetization depends on the material and quality, and the ratio of the dimensions.

Goudsmit magnets are of such a high quality that over time they barely lose any magnetic force at all. This is provided that you apply them within the specifications, such as temperature range and external magnetic fields.

For all magnets, the magnetic force decreases with increasing temperature. Some materials are more affected by this than others. The resistance to demagnetization generally decreases with increasing temperature. An exception is ferrite, of which the resistance to demagnetization actually increases when the temperature rises.

Please click on a magnet material for more information about the alloy, its various qualities and specific applications:

• Aluminium-Nickel-Cobalt (AlNiCo) magnets
• Ferrite (FeO) magnets
• Samarium-Cobalt (SmCo) magnets
• Neodymium-Iron-Borium (NdFeB) magnets (also marketed by Goudsmit under the brand name Neoflux®)
• Plastic-bonded neodymium magnets