The assembly of already magnetized individual parts is usually unfavourable, often not possible at all, due to the counterforces acting in the process. In these cases, the ferromagnetic elements in our systems are only magnetized in their final arrangement after assembly. The necessary magnetization and measuring technology must be tailored to both the component geometry and the properties of the material. Using self-optimizing control technology, the wide range of key parameters of the starting material is automatically compensated for without the need to manually adjust process parameters.