電dian動dong單dan梁liang起qi重zhong機ji是shi一yi種zhong輕qing小xiao起qi重zhong設she備bei,主zhu要yao用yong於yu工gong廠chang重zhong物wu搬ban運yun組zu裝zhuang設she備bei,在zai工gong字zi鋼gang軌gui道dao上shang運yun行xing,有you電dian動dong和he手shou動dong之zhi分fen,重zhong物wu掛gua在zai其qi上shang,比bi較jiao簡單,應用較多!