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由能源部杭州机械设计研究所设计、浙江省水利水电机械厂制造的63t一42m门式起重机于1988年5月在甘肃省靖远电厂工地一次安装、试制成功,并投入运行。半年多运行证明,该机在各方面性能均优于工地上其他同类产品,获得西北电建二公司干部和工人们一致好评。该机在工地上分别进行了动、静负荷试验。当动负荷为63t(额定值)悬吊10min时,桁架下挠度为37mm,卸载后恢复原状;当静负荷为78.9t(1.25倍额定值)时,桁架下挠度为55mm,卸栽后恢复原状,
Designed by the Hangzhou Mechanical Design Institute of the Ministry of Energy, the 63t-42m gantry crane manufactured by Zhejiang Water Conservancy and Hydropower Machinery Factory was installed in a site of Jingyuan Power Plant in Gansu Province in May 1988 and was successfully trial-produced and put into operation. More than six months of operation proved that the aircraft in all aspects of performance are superior to other similar products on the site, access to Northwest Power Construction Company two cadres and workers alike. The aircraft on the site were carried out dynamic and static load test. When the dynamic load is 63t (rated value) for 10min, the truss deflection is 37mm, and the unloaded truss is restored to its original shape. When the static load is 78.9t (1.25 times of rated value), the truss deflection is 55mm, ,