Exploration of the Functions of down the hole drilling rig

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  1. Unique Structure of down the hole drilling rig​
Down-the-hole drills are impact-rotary machines. Their special design features a separate impactor with a gas distribution and piston reciprocating mechanism. When working, the impactor goes into the hole. The piston, driven by the gas distribution device, hits the shank adaptor. This makes the drill bit strike the rock at the hole bottom. Meanwhile, a separate rotation mechanism drives the impactor to spin fast in the hole through the drill rod. The rock breaks under both impact and rotation forces.down the hole drilling rig​
  1. Powerful Drilling Capabilities​
These drills are excellent at drilling in hard rocks (f≥8). They can create blast holes from 80 to 250 mm in diameter. In mining, they drill deep holes for blasting, improving blasting efficiency. For water conservancy projects, they make holes for dam foundation grouting or anchoring, ensuring structural stability. In construction, they drill pile holes in rocky ground, supporting tall buildings and bridges.​
  1. Exceptional Deep-Hole Performance​
Some down-the-hole drill models can reach depths over 50 امتار, even up to 100 امتار. With a hole deviation rate of less than 1%, they meet strict accuracy needs, like in dam anchoring or geothermal well drilling. In challenging terrains such as cracked rock or sloping layers, operators can adjust impact frequency, air pressure, and rotation speed. This reduces the risk of drill jams. Thanks to these features, down-the-hole drills are essential in many engineering fields, ensuring the success of large projects.down the hole drilling rig