About Carter 220 down-the-hole drilling rig
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6 FAQs about [Carter 220 down-the-hole drilling rig]
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 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)
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 a caterpillar AF 220 rig?
This rig has been created for foundation piles with diameters from 450mm up to 2000mm and a depth up to 66 meters. The AF 220 is mounted on Caterpillar 330 D HHP excavator base with a Caterpillar undercarriage with extensible lower from 3m to 4,3m.
What makes AF 220 a good rig?
The AF 220 is one of the most prestigious machines with great performance. Its success is due to its characteristics of operative comfort, stability, reliability and, most importantly, productivity. This rig has been created for foundation piles with diameters from 450mm up to 2000mm and a depth up to 66 meters.


