80吨塔桅起重机是利用北京市建筑机械修造厂制造的TQ60/80型(俗称3～8吨)塔式起重机改制而成的。 80吨塔桅起重机的结构形式和工作原理基本借鉴50吨塔桅起重机的经验,同时有较大的提高和改革:桅式最大起重量达到80吨,最大起重高度可达42公尺,比50吨塔桅高14公尺, The 80-ton tower crane was rebuilt from a TQ60/80 (commonly known as 3 to 8 tons) tower crane manufactured by the Beijing Construction Machinery Repair Factory. The structure and working principle of the 80-ton tower crane basically draws lessons from the experience of the 50-ton tower crane. At the same time, it has greatly improved and reformed: The maximum lifting capacity of the mast reaches 80 tons, and the maximum lifting height can reach 42 meters. The 50-ton tower is 14 meters high.