In quarry drilling projects, real construction results often speak louder than any technical description. During the latest test campaign in a quarry with alternating and complex rock formations, our 115 High Air Pressure DTH Drilling Rig successfully completed the full drilling plan.
The test reached 209 meters with stable penetration efficiency, and the carbide on the bit remained in normal wear condition, leaving enough alloy to drill another 30 meters.
The smooth completion of this project is more than a finished task-it is powerful evidence of the rig's superior performance, reliability, and durability in demanding geology.
✅ Real Construction Results Prove the Quality
In multi-rock environments-shale, limestone, granite and other hard formations alternating-every drill meter is a test of equipment stability.
Despite these challenges, the project achieved all expected goals:
★ Total drilling depth: 209 meters
★ Bit wear remained normal, no abnormal failure
★ Carbide remaining for approx. 30 additional meters
★ No unexpected downtime or drilling interruptions
★ Consistent penetration rate throughout the work
This outcome clearly demonstrates that the High Air Pressure DTH Drilling Rig can maintain stable performance under real-world, high-intensity conditions.
Why High Air Pressure DTH Drilling Rigs Perform Better in Complex Formations
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Stronger Impact Force for Hard Rock
High air pressure delivers higher impact energy to the DTH hammer, enabling fast and efficient rock breaking even when rock hardness changes frequently.
Faster and Cleaner Cuttings Removal
The high air volume provides excellent hole cleaning, reducing risks of:
●stuck drilling
●bit jamming
●reduced drilling efficiency
This is essential for long-depth production drilling in quarries.
Superior Bit Durability
After drilling 209 meters, the DTH bit still retained enough carbide for another 30 meters-far above typical durability performance in mixed hard rock.
Equipment Stability = Project Stability
Throughout the entire test, the drilling system ran continuously without failures, helping the quarry maintain its production schedule.
Reaching the Target Is Not Luck-It's the Result of Strong Equipment
Project completion on schedule is the most objective evaluation of drilling equipment.
The performance of the 115 High Air Pressure DTH Drilling Rig proves:
It adapts to alternating hard formations
It maintains a stable drilling speed
It minimizes downtime
It lowers overall drilling cost
It improves quarry production efficiency
Instead of relying on exaggerated promotional claims, we let real drilling data and real project outcomes speak for our equipment.
High Air Pressure DTH Drilling Rig: A Reliable Solution for Quarries
For quarry blasting holes, mining production, construction drilling, and deep hard-rock applications, a high air pressure system is now the preferred solution.
Customers choose this technology because it provides:
High penetration efficiency
Long tool life
Stable rock breaking in mixed formations
Excellent hole cleaning
High reliability in long continuous operations
When a drilling rig helps a quarry complete its schedule smoothly, it proves its value better than any brochure.
Conclusion
The successful completion of the 209-meter quarry test, with the bit still able to continue drilling, confirms the outstanding capability of our 115 High Air Pressure DTH Drilling Rig. The project result itself is the best certificate of performance, quality, and long-term reliability.
If you need High Air Pressure DTH Drilling Rigs, DTH hammers, bits, drill pipes, or complete drilling solutions, we are ready to support your project with professional recommendations and field-proven products.
The cutting surfaces on a vertical end mill bit (are for milling ) are on its sides , designed for cutting horizontally , a drill bit ( are for drilling ) cutting surface is at its tip , designed for cutting vertically downward .. you'll notice a end mill usually has a flat on the end of the bit .
