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S250 Improves Bench Stability in Highway Excavation

Air Leg Rock Drill

Efficient surface drilling for controlled rock removal

S250 Air Leg Rock Drill

Secoroc S250 adopts the mature technology of Epiroc,is an advanced air-leg pneumatic rock drill machine nowadays. Because of its higher efficiency, it is especially suitable to be used in the construction of railway, highway, and hydroelectricity. And it is also the best renewal generation products in the metallurgy, coal mining industries and the tunnel excavation.
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s250 air leg rock drill 3

Highway cuts through mountains require controlled blasting to shape wide, stable benches. The S250 rock drill is widely used for drilling both horizontal and inclined holes along bench levels.

 

Its balanced vibration, strong penetration, and easy angle adjustments help engineering teams maintain uniform hole spacing — a key factor for clean, stable rock faces after blasting.

 

Building on this foundational performance, the S250’s engineering directly addresses the most persistent challenges in high-slope operations. The core of its superiority lies in a proprietary hydraulic dampening system that actively counteracts the jarring harmonics typical of high-impact drilling. Where conventional drills transmit disruptive shocks through the boom and into the surrounding rock mass, the S250 maintains a remarkably steady pressure. This "quiet power" does more than just protect the machinery from wear; it prevents the micro-fracturing of the bench face during the drilling process itself. By preserving the intrinsic strength of the rock, the S250 ensures that the subsequent blast fractures the material along the intended pre-split line, resulting in a final wall that is not only clean but structurally superior.

 

Operators on the front lines report a tangible difference in daily productivity. The intuitive angle adjustment mechanism, a sealed joint system operable with minimal effort, allows for rapid re-positioning between holes without sacrificing precision. This is critical when navigating complex geological transitions or executing designed inclinations for optimal blast vectoring. Crews can complete entire drilling patterns in a single shift that previously required overtime or a second day, a direct result of reduced setup time and the drill's relentless penetration rate. Its powerful hydraulic motor delivers consistent torque even in the toughest abrasive granites, eliminating the frequent stalling that plagues lesser equipment and keeps projects on schedule.

 

The ultimate proof, however, is measured in the aftermath of the blast. When the dust settles, project managers and geotechnical engineers observe a bench with a near-textbook geometric profile. The precise hole alignment and depth consistency achieved by the S250 translate to controlled, efficient energy release from the explosives. Over-break—the costly and hazardous crumbling of rock beyond the desired limit—is dramatically minimized. This precision reduces the need for secondary rock scaling and expensive slope stabilization measures like soil nailing or shotcrete, leading to significant long-term savings. Furthermore, the resulting stable bench provides a safer, wider working platform for the next phase of construction, whether it's laying down a roadbed or installing drainage and reinforcement systems.

 

In essence, the S250 has redefined its role from a simple drilling tool to an integral component of strategic slope management. It is the first link in a chain of operations that determines the final safety, durability, and economic viability of a highway cut. By guaranteeing precision from the very start, it empowers engineering teams to build slopes that are engineered to last, safeguarding both infrastructure and the lives that travel on it for decades to come.


Post time: Nov-18-2025
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