The DTH drilling rig (down-the-hole drilling machine) is a kind of drilling machine, which is mainly used for drilling in rock formations. The down-the-hole drilling rig uses the impactor and the DTH drill bit.
[pdf] Our Egyptian-Chinese petroleum company, EPHH, has achieved a significant milestone by manufacturing the first onshore drilling rig with Egyptian hands at our factory in Ain Sokhna, under the guidance of the Egyptian state and the instructions of Engineer Tarek El Molla, Minister of Petroleum and Mineral Resources.
[pdf] In hard rock mining and quarrying, this is achieved through a controlled process of drilling and blasting. A blast hole drill rig is a specialised piece of equipment that creates a series of holes in a specific pattern, depth, and diameter across a section of rock known as a “bench.”
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