Na'ura mai juyi mai jujjuyawa tare da laminated cores wani abu ne da ake amfani da shi a cikin injinan lantarki wanda ya ƙunshi ɓangaren tsaye (stator) da juzu'i mai juyawa (rotor).Stator yana kunshe da jerin faranti na ƙarfe na ƙarfe waɗanda aka tsara a cikin takamaiman tsari don samar da ainihin motar.Hakanan rotor ɗin ya ƙunshi faranti na ƙarfe da aka liƙa, amma ana tsara su ta wani tsari na daban don ƙirƙirar filin maganadisu mai juyawa.
Lokacin da wutar lantarki ta wuce ta hanyar stator, yana haifar da filin maganadisu wanda ke hulɗa da filin maganadisu da na'ura mai juyayi ya kirkira.Wannan mu’amala ta sa na’urar ta jujjuya, wanda hakan ke jan ragamar motar da duk wani injin da aka makala.
Yin amfani da laminated cores a cikin stator da rotor yana da mahimmanci saboda yana rage makamashin da aka rasa ta hanyar igiyar ruwa, wanda shine wutar lantarki da ke samuwa a cikin faranti na karfe saboda sauyawar filayen maganadisu.Ta hanyar ƙaddamar da faranti na ƙarfe, igiyoyin eddy suna iyakance ga ƙananan madaukai, wanda ke rage tasirin su akan ingancin injin gabaɗaya.
