A detailed explanation of the Working Principle of Down the hole drilling rig

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  1. Impact Mechanism: Breaking Rock​
Down the hole drilling rig use an impact-rotary method. The impactor goes to the hole bottom. Compressed air enters via the drill rod. Inside the impactor, a gas distributor guides air, pushing the piston to move fast. The piston hits the shank adaptor, making the drill bit break rock.​
  1. Rotary Function: Efficient Crushing​
These drills also rotate. The rotation mechanism outside the hole, powered by motors or air, turns the drill rod. This spins the impactor and bit inside the hole. The rotation helps break rock evenly, keeping holes smooth and consistent.​
  1. Cutting Removal: Keeping Holes Clear​
During drilling, a mixture of air and water removes cuttings. The system sends this mixture through the drill rod to the hole bottom. The strong blast of the mixture flushes out cuttings, ensuring continuous drilling. Together, impact, rotation, and cutting removal let these drills work well in all rock types.Down the hole drilling rig