Magineti asingaperi epasi, kunyanya ayo akagadzirwa kubva kuzvinhu zvakaita seneodymium, samarium-cobalt, nezvimwe, anoita basa rakakosha mumakina akasiyana ekurapa nemidziyo inoshandiswa muzvipatara. Yavo yakasarudzika zvimiro, senge yakakwira magineti simba uye kuramba kune demagnetization, inoita kuti ive yakakodzera kune akati wandei akakosha maapplication.