牽引電磁(ci)鐵(tie)可以被理解為(wei)主要(yao)用(yong)來牽引機械裝置(zhi)、開啟或者(zhe)關(guan)閉各(ge)種閥門，以執行自動控(kong)制任(ren)務。

常(chang)見的(de)牽引電(dian)(dian)磁(ci)鐵的(de)鐵芯都是軟磁(ci)性材料而制，它(ta)的(de)作用顯而易見，如對電(dian)(dian)動(dong)(dong)機進行制動(dong)(dong)以達到準確停車的(de)目的(de)叫制動(dong)(dong)電(dian)(dian)磁(ci)鐵;

電(dian)(dian)磁(ci)(ci)(ci)繼(ji)電(dian)(dian)器(qi)和接觸器(qi)的電(dian)(dian)磁(ci)(ci)(ci)系(xi)統(tong)、自(zi)動(dong)開關(guan)的電(dian)(dian)磁(ci)(ci)(ci)脫扣器(qi)及(ji)操作的被(bei)稱為自(zi)動(dong)電(dian)(dian)器(qi)電(dian)(dian)磁(ci)(ci)(ci)控制系(xi)統(tong)電(dian)(dian)磁(ci)(ci)(ci)鐵(tie)(tie)，還有一(yi)類用于(yu)起重(zhong)裝置來吊運(yun)鋼錠、鋼材(cai)、鐵(tie)(tie)砂等鐵(tie)(tie)磁(ci)(ci)(ci)性(xing)材(cai)料的被(bei)分(fen)為起重(zhong)電(dian)(dian)磁(ci)(ci)(ci)鐵(tie)(tie)。