How to work the DTH hammer
Jun 05, 2018

It is more advantageous for DTH to drill hard rock and hard rock. Because the hard rock and hard rock are relatively brittle, under the impact of the impact load, apart from some rocks that are directly crushed, the fracture will be produced at the contact parts of the bit teeth, forming a broken zone and producing large particles of debris, so the drilling speed is much faster than that of the simple rotary drilling.

In addition, the technique of dive hammering can effectively reduce the porosity and overcome the difficulties in drilling some ooconglomerate and boulder layers.


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