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由建设部长沙建筑机械研究所与浙江省建筑机械厂联合研制成功的QTK40塔式起重机,于1986年12月通过部级签定该机是一种下旋转、下加节、小车变辐的新型塔式起重机。具有轨道式和固定式两种工作方式,臂长可变,可整体拖运它可利自身的动力和机构,实现上轨、立塔、吊装平衡重、伸塔拉臂等动作,使整机安装不需要辅助设备自行快速安装来自全国的塔式起重机鉴定委员会的有关专家学者们认真地对有关鉴定技术资料进行了
The QTK40 tower crane, jointly developed by the Changsha Construction Machinery Research Institute of the Ministry of Construction and Zhejiang Construction Machinery Plant, was signed in December 1986 by the ministerial level. It is a new type of under-rotation, under-gauging, and car-variable spokes. Tower cranes. There are two types of rail-type and fixed-type work methods, variable arm length, it can be hauled as a whole, it can benefit its own power and institutions, to achieve the upper rail, vertical tower, lifting weight balance, extension tower pull arm and other actions, so that the whole Installation does not require ancillary equipment to quickly install the relevant experts and scholars from the national tower crane appraisal committee to earnestly carry out relevant appraisal technical data.