ʻO ka mea hoʻoneʻe hao magnet paʻa i hoʻopaneʻe ʻia me ka mea Nd-Fe-B me ka coercivity kiʻekiʻe a me ka remanence kiʻekiʻe.Loaʻa i ke kumu hoʻohālike nā pono o ka mālama ʻole, ka ikaika magnetic maikaʻi, ke ola lawelawe lōʻihi, ka hoʻonohonoho maʻalahi, ka hoʻohana maʻalahi a me ka hana hilinaʻi.He kūpono ia no ka wehe ʻana i ka hao mai nā mea non-magnetic ma ka belt conveyor, vibration conveyor, electromagnetic vibration feeder a me discharge chute.ʻO ka scavenging 0.1-35 kg o nā mea ferromagnetic.ʻO ka ʻōnaehana magnet paʻa kūloko i ke ola lawelawe ʻoi aku ma mua o 10 mau makahiki.