Magnetic mafirita anoumbwa neakasimba magineti zvinhu uye barriers filter screen. Vane kagumi simba rekunamira remagineti zvinhu uye vanokwanisa kushambadza micrometer-sized ferromagnetic pollutants mukukurumidza kuyerera kwemvura kuyerera kana yakakwirira kuyerera. Kana ferromagnetic tsvina mu hydraulic medium ikapfuura nepamukaha pakati pesimbi zvindori, inoiswa pamaringi esimbi, nekudaro inowana iyo yekusefa.