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为了改变当前坑道钻探设备的落后面貌,冶金部地质研究所、武钢矿山指挥部和大冶铁矿共同协作研制和生产试验了“钻石-300”全液压金刚石坑道钻机,在大冶铁矿尖林山矿区已穿凿14个钻孔,总进尺2400余米。它具有如下的优点:1.在200～1900转/分转速范围内可以任意无级调速。
In order to change the backwardness of the current tunnel drilling equipment, the Metallurgical Institute of Geology, the headquarters of WISCO Mine and Daye Iron Mine collaborated to develop and produce “Diamond-300” fully hydraulic diamond tunnel drilling rig, The mine has been drilled 14 holes, the total footage of 2,400 meters. It has the following advantages: 1. In the 200 ~ 1900 rev / min speed range can be any stepless speed regulation.