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6 FAQs about [Yongtong down-the-hole drill rig review on Zhihu]
What is a down the hole drilling rig?
Down the hole drilling rig is an impact rotary drilling rig. Its internal structure is different from that of a general rock drill.
What is a DTH drilling rig?
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 bits submerged into the bottom of the hole to impact and crush the rock. Therefore, it is called down-the-hole drilling machine equipment.
What is down-the-hole drilling machine equipment?
The down-the-hole drilling rig uses the impactor and the DTH drill bits submerged into the bottom of the hole to impact and crush the rock. Therefore, it is called down-the-hole drilling machine equipment. YG DTH drill rig machine is widely used in metal mines, hydropower, transportation, building materials, harbors, and national defense projects.
What is down-the-hole (DTH) drilling?
Down-the-hole (DTH) drilling has made it easier for contractors to drill wells faster and more efficiently, and to transition from dirt boring to rock boring just by adding a compressor and hammer to the drill bit.
What is the difference between DTH and rotary drilling?
Which includes the drilling process of impact, rotation, ballast removal, and advancement. DTH machine belongs to percussion rotary drilling. The difference is that the impactor of the down-the-hole drilling machine is installed at the front end of the drill rig rod, submerged into the bottom of the hole.
What is the difference between a drill rig and a down-the-hole drill?
The difference is that the impactor of the down-the-hole drilling machine is installed at the front end of the drill rig rod, submerged into the bottom of the hole. And continues to advance as the drilling extends. Small outrigger-type down-the-hole drill rig (YGD70-80-100-120)


