In a horizontal tunnel excavation project at a major metal mine, a solution utilizing YT27 air-leg rock drills paired with custom-designed alloy drill bits was implemented. This approach achieved stable and highly efficient drilling within hard rock strata ranging from f=8 to f=18 in hardness, reaching effective drilling depths of up to 5 meters and significantly enhancing both the efficiency and safety of the tunneling operations.

During the construction of a railway tunnel in a mountainous region, the compact YT29A air-leg rock drill was deployed for operations within narrow tunnel cross-sections. Thanks to its superior feed beam design, the equipment maintained excellent drilling perpendicularity even within hard surrounding rock, thereby successfully meeting the demanding schedule requirements for rapid tunneling.

In an urban renewal initiative, KAITUO pneumatic paving breakers were utilized for the demolition of concrete pavements and foundations. The equipment demonstrated exceptional performance in breaking up high-strength concrete, efficiently completing the demolition tasks required for the urban foundation reinforcement project.