In 1986, Lianhuashan Drilling Tools Co., Ltd. introduced a full set of HYD200 hydraulic rock drill production technology from France Secoma Company and successfully produced China's first hydraulic rock drill.
[pdf] A slender oil pipe with many elbows and not fixed could cause the pipe to shake when the oil flow rate is high. An unbalanced rotating part of the motor and hydraulic pump, poor alignment during installation, or loose coupling can generate vibration and noise.
[pdf] A pneumatic rock drill uses compressed air, a piledriver and a drill bit to pound into and pulverize hard surfaces. This powerful, efficient tool combines superior strength and precision to perform flawlessly in th.
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