門(men)(men)吸也(ye)俗稱(cheng)門(men)(men)碰，也(ye)是一種門(men)(men)頁打開后吸(xi)(xi)住定位(wei)的裝置，以防止(zhi)風(feng)吹或(huo)碰觸門(men)(men)(men)頁而關(guan)閉。門(men)(men)(men)吸(xi)(xi)分為(wei)永磁門(men)(men)(men)吸(xi)(xi)和電磁門(men)(men)(men)吸(xi)(xi)二種，永磁門(men)(men)(men)吸(xi)(xi)一般用在普(pu)通(tong)門(men)(men)(men)中(zhong)，只能手動控制；電磁門(men)(men)(men)吸(xi)(xi)用在防火門(men)(men)(men)等電控(kong)門窗(chuang)設備，兼(jian)有手(shou)動控(kong)制和(he)自動控(kong)制功能。

普通永磁門吸按安裝(zhuang)形式分墻裝(zhuang)(zhuang)式(shi)、地(di)裝(zhuang)(zhuang)式(shi)，按材質分塑料型、金屬型；電磁門吸(xi)按不同的(de)安裝(zhuang)(zhuang)方式(shi)產品分為CT-01墻式(shi)、CT-02地(di)式(shi)、CT-03鏈(lian)式(shi)三(san)大類，墻式(shi)電磁門吸(xi)根據結構(gou)不同又分為標準型、增高型、加長型、盒裝(zhuang)型、暗裝(zhuang)型、長臂型等；地(di)式電磁(ci)門(men)(men)吸(xi)由CT-01墻(qiang)式電磁(ci)門(men)(men)吸(xi)和直(zhi)角地(di)面安裝(zhuang)支架組成；鏈式電磁(ci)門(men)(men)吸(xi)由CT-01墻(qiang)式(shi)電(dian)磁門吸和(he)鏈條扣件組成(cheng)；由于CT-01墻式(shi)、CT-02地式(shi)、CT-03鏈式(shi)電(dian)磁門吸主體互相通用(yong)(yong)，方便用(yong)(yong)戶根據使(shi)用(yong)(yong)現場安裝條件來選用(yong)(yong)。