牽引(yin)電磁(ci)鐵(tie)可以被理解為主要(yao)用來牽引(yin)機械裝置、開啟或者關閉(bi)各(ge)種閥門，以執行(xing)自(zi)動控制(zhi)任(ren)務。

常見的牽引電(dian)磁(ci)鐵(tie)的鐵(tie)芯都是軟磁(ci)性(xing)材料而(er)制，它的作(zuo)用顯而(er)易(yi)見，如對電(dian)動(dong)機進行(xing)制動(dong)以(yi)達到準確停車的目(mu)的叫(jiao)制動(dong)電(dian)磁(ci)鐵(tie);

電(dian)(dian)(dian)(dian)磁繼電(dian)(dian)(dian)(dian)器和(he)接觸(chu)器的(de)電(dian)(dian)(dian)(dian)磁系統、自(zi)動開關的(de)電(dian)(dian)(dian)(dian)磁脫(tuo)扣器及操(cao)作的(de)被(bei)稱(cheng)為自(zi)動電(dian)(dian)(dian)(dian)器電(dian)(dian)(dian)(dian)磁控制系統電(dian)(dian)(dian)(dian)磁鐵(tie)，還(huan)有一類(lei)用于起(qi)重裝(zhuang)置來吊運鋼錠(ding)、鋼材、鐵(tie)砂等鐵(tie)磁性材料的(de)被(bei)分為起(qi)重電(dian)(dian)(dian)(dian)磁鐵(tie)。