門(men)吸(xi)也俗稱(cheng)門(men)碰，也是(shi)一種門(men)頁打(da)開后吸住定位的裝置，以(yi)防止風吹或碰觸門(men)(men)頁(ye)而關閉。門(men)(men)吸分為永磁(ci)門(men)(men)吸和電磁(ci)門(men)(men)吸二種，永磁(ci)門(men)(men)吸一般用在普通門(men)(men)中，只能(neng)手動控制；電磁(ci)門(men)(men)吸用在防火門(men)(men)等電控門窗(chuang)設備，兼(jian)有手動(dong)(dong)控制和自動(dong)(dong)控制功(gong)能。

普通永(yong)磁門吸按安裝(zhuang)形式分墻裝式(shi)、地(di)(di)裝式(shi)，按材質分塑(su)料(liao)型(xing)、金屬(shu)型(xing)；電磁門吸按不同的安(an)裝方式(shi)產(chan)品分為(wei)CT-01墻式(shi)、CT-02地(di)(di)式(shi)、CT-03鏈式(shi)三(san)大類，墻式(shi)電磁門吸根據結構不同又分(fen)為標準型(xing)(xing)、增高(gao)型(xing)(xing)、加長型(xing)(xing)、盒裝型(xing)(xing)、暗裝型(xing)(xing)、長臂型(xing)(xing)等；地(di)式(shi)電(dian)磁(ci)門(men)吸由(you)(you)CT-01墻(qiang)式(shi)電(dian)磁(ci)門(men)吸和直角地(di)面安裝支架組(zu)成；鏈(lian)式(shi)電(dian)磁(ci)門(men)吸由(you)(you)CT-01墻(qiang)式電磁(ci)(ci)門(men)吸和鏈條扣(kou)件組成；由(you)于CT-01墻式、CT-02地式、CT-03鏈式電磁(ci)(ci)門(men)吸主體互相通用(yong)(yong)，方便用(yong)(yong)戶(hu)根據使用(yong)(yong)現場(chang)安裝條件來選用(yong)(yong)。