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QJD—50型取样钻机是1980年由地质矿产部勘探技术研究所、天津探矿机械厂设计试制成功的一种新型钻机。曾在我队进行生产性试验。全队现有六台，开动3台，其中一台打煤，一台打白粘土矿，一台对外承包打工程钻。几年来在田阳等地施工了五个矿区，从事铝土、煤、膨润土、白粘土等四个矿种普查找矿。还抽调一台钻机用于地方厂矿、机关、学校、社队找水、土工建筑、水利桥梁等工程的钻探工作，取得了较好的效果，无论在松软地层或硬地层、复杂地层钻进中，钻进深度、口径、岩矿心采取率，基本上达到地质目的要求。
QJD-50 sampling rig is a new type of rig successfully designed and manufactured in 1980 by the Exploration Technology Institute of Ministry of Geology and Mineral Resources and Tianjin Prospecting Machinery Factory. Had a productive test in my team. The existing team of six, start 3, one of the coal, a white clay mine, an engineering contracting overseas drilling. Over the past few years in Tianyang construction of five mines, engaged in bauxite, coal, bentonite, white clay and other four mineral prospecting prospecting. A drilling rig was also deployed for drilling work in places such as factories and mines, government agencies, schools, community water agencies, geotechnical structures and water conservancy bridges, and achieved good results. Both in soft and hard formations and in complicated formation drilling , Drilling depth, caliber, rock core take rate, basically meet the geological requirements.