Magnet-ka dahaarka leh ee caagga ah waa in lagu duubo lakabka caagga ah ee dusha sare ee magnet-ka, kaas oo inta badan lagu duuduubo bir-mareennada NdFeB ee sintered gudaha, xaashida birta magnetic-ka samaynaysa iyo qolofka caagga ah ee dibadda ah. Qolofka caagga ah ee raagaya wuxuu hubin karaa birlabyada adag, jajaban iyo daxalka si looga fogaado burburka iyo daxalka. Waxay ku habboon tahay codsiyada hagaajinta magnetic gudaha iyo dibadda, sida meelaha baabuurta.