The water well drilling rig
DTH hammer excels in hard rocks like granite and basalt.
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High-frequency impacts: Its piston hits 1,000-2,000 times per minute. It crushes rock into fine particles, avoiding energy loss from traditional rotation.
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Concentrated energy: Converts air pressure to mechanical energy. Over 80% goes to bit teeth, no need for constant grinding.
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Deep well efficiency: Works well in wells over 100m. High-pressure air clears cuttings, keeping speed steady at 1-1.5m/h.
A mountain project used it in quartzite, drilling 12m/day. Traditional roller cone rigs only did 3-4m. The water well drilling rig saved much time.
Bangxin drilling rig