CT400型轮胎式露天凿岩台车是天水风动工具研究所在CZ301型露天凿岩台车的基础上改进设计的。于1975年5月15日完成设计,10月1日完成试制,12月12日在洛阳市龙门水泥厂完成工业试验,1976年1月24日由天水燎原风动工具厂和洛阳市龙门水泥厂共同组织在洛阳市召开了产品鉴定会,并定型成批生产。本台车与YG80导轨式凿岩机配套,是一种效率较高的小直径中深孔接杆凿岩设备。主要用于中、小型露天矿山和国防工程、各种基建施工等石方工程,作为主要凿岩设备;也可用于大型地下施工和大型露天矿山,作为辅助凿岩设备使用。凿孔直径为60～65毫米,凿孔深 CT400 Tire Open-cut Rock Drill is Tianshui Pneumatic Tool Institute based on CZ301 open-cut rock drilling trolley based on the improvement of design. Completed the design on May 15, 1975, finished the trial production on October 1, and completed the industrial test on December 12 at Longmen Cement Factory of Luoyang City. On January 24, 1976, the project was started by Tianshui Liaoyuan Pneumatic Tools Factory and Luoyang Longmen Cement Factory Co-organized in Luoyang City, held a product identification meeting, and stereotypes batch production. The trolley and YG80 rail-mounted rock drill supporting, is a high efficiency small diameter deep hole post rock drilling equipment. Mainly used for medium and small open pit mines and national defense projects, a variety of infrastructure construction and other stone works, as the main rock drilling equipment; also be used for large underground construction and large open pit mines, as an auxiliary rock drilling equipment. Bored hole diameter of 60 to 65 mm, deep hole