Case Study 1: High-Altitude Gold Mine Mining Efficiency Improvement Project
Project Type: Underground Hard Rock Mining
Application Challenges:
The client is located in a high-altitude region where the surrounding rock hardness is extremely high (Protodyakonov hardness scale f=12–18). Due to an unstable local power supply-and because their old equipment frequently suffered from frozen air valves and insufficient power output in extreme low-temperature environments-daily drilling progress fell far short of expectations.
Solution and Equipment Deployed:
Selected Equipment: YT28 Pneumatic Leg Rock Drill
Technical Adaptation: The YT28 features a highly efficient air-water linkage system and an optimized muffler design. To address the extreme cold environment, we advised the client to utilize a high-efficiency line oiler in conjunction with the drill to ensure proper lubrication.
Problems Solved:
Qualitative Improvement: The YT28 delivers stable impact energy, effectively resolving the issue of slow drilling speeds encountered in high-hardness rock strata.
Low Maintenance Costs: Thanks to its simple structure and wear-resistant components, the client saw a reduction of approximately 20% in on-site equipment failure rates. This resulted in significant savings regarding the waiting times for spare parts-a critical factor in remote overseas mining locations.
Case Study 2: Transnational Railway Tunnel Excavation Project
Project Type: Railway Tunnel Excavation
Application Challenges:
In a railway project located in Southeast Asia, the tunnel working face was narrow, and ventilation conditions were limited. The client required auxiliary drilling equipment that could simultaneously ensure rapid excavation speeds, reduce operator physical exertion, and meet environmental standards regarding exhaust emissions.
Solution and Equipment Deployed:
Selected Equipment: YT29A Pneumatic Leg Rock Drill / YSP45 Pneumatic Stoper (for rock bolting support)
Technical Adaptation: The YT29A is renowned for its powerful torque and high impact frequency, making it ideally suited for deep-hole drilling operations encountered during tunnel excavation.
Problems Solved:
Construction Progress: Thanks to the YT29A's superior flushing and slag-removal capabilities, the occurrence of drill jamming in wet rock strata was effectively minimized, thereby ensuring consistent cycle times for the excavation process.
Systematized Operations: By utilizing a combined lineup of the YT series and the YSP45, the client achieved seamless integration between the "drilling" and "support" phases, thereby enhancing overall safety during tunnel construction.
Case Study 3: Urban Municipal Renovation and Industrial Demolition Project
Project Type: Municipal Utility Maintenance
Application Challenges:
During the renovation and expansion of the underground utility network in an older urban district, the client faced the task of breaking up large volumes of reinforced concrete. As the construction site was situated close to a residential area, strict constraints were placed on the project timeline. Furthermore, the tools employed were required to be flexibly operable by a single worker and capable of maneuvering within the confined spaces of narrow inspection manholes.
Solution and Equipment Deployed:
Selected Equipment: B87C Pneumatic Breaker / G10 Pneumatic Pick
Technical Suitability: The B87C utilizes proven breaking technology capable of generating immense impact energy even at lower air pressures, making it ideally suited for the rapid demolition of concrete structures.
Problems Solved:
High Maneuverability: The lightweight nature of the G10 pneumatic pick resolved the critical issue of being unable to deploy heavy machinery within confined spaces.
Durability Validation: Even during continuous operation in high-temperature environments (exceeding 45°C), Fengzhe's series of pneumatic breakers demonstrated exceptional heat dissipation capabilities and impact stability.