Injeneri yabumbwe na ferrite ya magnite, ifatanye na ferrite magnet, nizo magnesi zihoraho za ferrite zakozwe nuburyo bwo gutera inshinge.Ifu ya ferrite ihoraho yongewemo na resin binders (PA6, PA12, cyangwa PPS), ikurikirwa no guterwa binyuze mubibumbano, magneti yarangije afite imiterere igoye kandi yuzuye neza.