一、半自動電動起(qi)子

在達到設定(ding)扭(niu)力后不會自(zi)動(dong)剎車停止的(de)起(qi)子，稱(cheng)之為(wei)半(ban)自(zi)動(dong)電動(dong)起(qi)子。通常半(ban)自(zi)動(dong)設計為(wei)手按式(shi)(shi)。半(ban)自(zi)動(dong)有分AC高壓直插式(shi)(shi)，與經過電源變(bian)壓為(wei)DC低壓式(shi)(shi)。

二、全自(zi)動(dong)電動(dong)起(qi)子

在達到設定扭力后(hou)能夠完全自動(dong)剎車(che)并(bing)停止運轉(zhuan)的電動(dong)起子稱為(wei)(wei)全自動(dong)電動(dong)起子。全自動(dong)電動(dong)起子又(you)分為(wei)(wei)AC高(gao)壓(ya)和DC低壓(ya)兩個(ge)系列，根據(ju)操作(zuo)啟動(dong)模式(shi)的不同(tong)又(you)分為(wei)(wei)手(shou)按式(shi)和下壓(ya)式(shi)兩種。

高(gao)壓(ya)(ya)(ya)系(xi)列(lie)(lie)電(dian)(dian)動(dong)(dong)起子(zi)不需(xu)要單獨電(dian)(dian)源供(gong)應器(qi)轉換電(dian)(dian)壓(ya)(ya)(ya)，直(zhi)(zhi)接與市電(dian)(dian)連接，操(cao)作快(kuai)捷占用(yong)空間小。低壓(ya)(ya)(ya)系(xi)列(lie)(lie)電(dian)(dian)動(dong)(dong)起子(zi)體積小重量輕，由直(zhi)(zhi)流馬達(da)驅動(dong)(dong)，壽(shou)命長(chang)安全(quan)系(xi)數高(gao)。手(shou)按式電(dian)(dian)動(dong)(dong)起子(zi)操(cao)作啟(qi)動(dong)(dong)時只需(xu)用(yong)手(shou)指(zhi)按住啟(qi)動(dong)(dong)杠桿，或壓(ya)(ya)(ya)板(ban)按鈕等(deng)。下(xia)壓(ya)(ya)(ya)式電(dian)(dian)動(dong)(dong)起子(zi)操(cao)作啟(qi)動(dong)(dong)時無(wu)需(xu)用(yong)手(shou)指(zhi)按住啟(qi)動(dong)(dong)杠桿，或壓(ya)(ya)(ya)板(ban)按鈕等(deng)，直(zhi)(zhi)接對準(zhun)工(gong)件(jian)壓(ya)(ya)(ya)下(xia)就可啟(qi)動(dong)(dong)。