牽(qian)引(yin)電磁鐵可以被理解為主要用(yong)來(lai)牽(qian)引(yin)機械裝(zhuang)置、開啟(qi)或者關閉各種閥門(men)，以執行(xing)自動控制任(ren)務。

常(chang)見的(de)牽引電(dian)(dian)磁鐵(tie)的(de)鐵(tie)芯都(dou)是軟(ruan)磁性材料而制，它的(de)作(zuo)用顯(xian)而易見，如(ru)對電(dian)(dian)動機進行(xing)制動以達到準確停車的(de)目(mu)的(de)叫(jiao)制動電(dian)(dian)磁鐵(tie);

電(dian)(dian)(dian)磁(ci)繼電(dian)(dian)(dian)器(qi)和接觸器(qi)的電(dian)(dian)(dian)磁(ci)系(xi)統、自動(dong)開關的電(dian)(dian)(dian)磁(ci)脫扣器(qi)及操作的被(bei)稱為(wei)自動(dong)電(dian)(dian)(dian)器(qi)電(dian)(dian)(dian)磁(ci)控(kong)制(zhi)系(xi)統電(dian)(dian)(dian)磁(ci)鐵，還有一(yi)類用于起重裝置來吊運鋼錠、鋼材、鐵砂等鐵磁(ci)性材料的被(bei)分為(wei)起重電(dian)(dian)(dian)磁(ci)鐵。