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由宣化风动机械厂自行研制的KQX—120型切削潜孔两用钻机鉴定会,于1987年5月15日至16日由河北省机械电子工业厅主持在邯郸召开。参加会议的有国家机械委员会重矿局科技处、国家建材总局等30个单位,49名代表。该机是一种全液压传动、履带自行式露天钻机,适用于中软岩为主的露天矿山和工地钻垂直炮孔或倾斜炮孔。岩石硬度f≤12时用切削钻进,f>12时用潜孔钻进,钻孔直径120毫米,最大孔深为44米。
KXX-120 Cutting DTH dual-purpose drilling rig self-developed by Xuanhua Fengdong Machinery Factory was held in Handan from May 15th to 16th, 1987 by Hebei Machinery and Electronic Industry Department. Attending the meeting are the State Machinery Commission Heavy Mining Bureau of Science and Technology Department, the State Administration of Building Materials, 30 units, 49 delegates. The machine is a full hydraulic transmission, crawler self-propelled open-air drilling rig, suitable for soft rock-based open-pit mines and construction drilling vertical hole or inclined hole. When the rock hardness is f≤12, it is drilled with cutting, when f> 12, it is drilled with a deep hole with a hole diameter of 120 mm and a maximum hole depth of 44 meters.