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地矿部勘探技术研究所设计、张家口探矿机械厂试制的FD－300型液压传动顶驱式钻机，曾分别在崎峰茶金矿和周口店进行了野外生产试验。共钻进569．56m，带负荷工作共206．26h。1试验配套机具W－5／60空压机；φ73mm双壁钻具；φ130mm俄罗斯潜孔锤；DHD－340A、JW－80、J80G潜孔
The FD-300 hydraulic drive top-drive rig piloted by Zhangjiakou Exploration Machinery Factory was tested in the field at the Qifengcha Gold Mine and Zhoukoudian, respectively. A total of 569.56m drilling, with a total load of 206.26h. 1 test supporting equipment W-5/60 air compressor; φ73mm double wall drill; φ130mm Russian DTH; DHD-340A, JW-80, J80G DTH