Geological transition zones require adaptable drilling tools. The YT28 handles variations in rock hardness with consistent performance. This stability supports accurate hole placement and blasting efficiency. As a professional manufacturer specializing in rock drilling machinery with decades of industry experience, we engineered the YT28 air-leg rock drill to address the most demanding drilling scenarios encountered in mining and tunneling operations. Unlike standard rock drills that struggle with fluctuating rock densities, our YT28 model maintains uniform impact energy and rotation speed regardless of whether it penetrates soft shale, hard granite, or the mixed formations typical of geological transition zones.
Product Introduction
The YT28 air-leg rock drill is a practical and high-efficiency pneumatic drilling tool, widely applicable for medium-hard to hard rock with a firmness coefficient of f=8-18. Weighing 26kg with a total length of 661mm, the drill features a compact and lightweight structure for easy on-site handling, while maintaining powerful drilling performance. Under a standard working air pressure of 0.63MPa, it delivers impact energy above 70J for stable and strong rock breaking.
Fitted with a precision machined piston (80mm diameter, 60mm stroke), the machine achieves an impact frequency of 37Hz or higher, ensuring fast and steady drilling speed. It supports drill bit diameters from 34mm to 42mm, with an ideal economical drilling depth reaching 5 meters. All core parts are made of high-quality alloy materials and processed with professional heat treatment. Every unit undergoes strict factory inspection before delivery, ensuring stable performance, strong wear resistance and long service life with low daily maintenance needs.
Product Operation & Application Guide
Designed with user-centric operation, the YT28 adopts an integrated centralized control structure, which is simple to operate and allows workers to master drilling control quickly. It features a linked air and water control system that realizes synchronous start and stop of air power and water flushing, supporting both dry and wet drilling modes. Wet drilling effectively suppresses rock dust, greatly improving underground construction environments and operational safety.
This rock drill is highly compatible, matching perfectly with FT160BC long air legs and FT160BD short air legs to adapt to different tunnel heights and construction spaces. It can also be installed on drilling rigs and fixed brackets for automated and fixed-point drilling operations, fitting diverse mining, tunnel and construction scenarios. For optimal working performance and extended service life, operators are recommended to maintain working air pressure between 0.5MPa and 0.63MPa, equip the machine with a FY200B pipeline oiler for continuous lubrication, and adjust feeding pressure appropriately according to actual rock conditions on site.
Performance Advantages: YT28 vs. Traditional Drilling Equipment
Traditional rock drills often struggle with unstable performance in complex and mixed rock formations. When encountering alternating hard and soft rock layers, they usually suffer from reduced drilling efficiency in hard rock and easy hole deviation in soft rock, which seriously affects construction progress and blasting quality.
The YT28 solves these industry pain points effectively. Its adaptive impact structure automatically adjusts output according to rock resistance, keeping stable drilling speed and accurate hole positioning in complex geological transition zones. Actual mine application data shows that compared with old-fashioned drills, the YT28 improves overall drilling efficiency by 30% to 40% and greatly reduces hole deviation problems.
The optimized mechanical structure cuts core component failure rates by more than 50%, lowering equipment replacement and maintenance costs. Meanwhile, its air-saving design reduces compressed air consumption and cuts energy operation costs. With optimized vibration reduction and noise control (≤125dB(A)), the machine effectively relieves operator fatigue during long-hour continuous work. Stable and consistent drilling accuracy also improves blasting effects, increases ore recovery rate, and avoids construction delays caused by unqualified drilling holes.
Factory Strength & Product Commitment
We are a professional manufacturer specializing in the R&D and production of rock drilling machinery, with decades of industry manufacturing experience and mature production technology. We implement full-process quality control from raw material forging, precision machining, heat treatment processing to finished product assembly and performance testing, strictly complying with international industry standards to ensure every YT28 drill delivers reliable quality.
Our technical team continuously optimizes product structure and performance based on field construction feedback and geological application data, upgrading equipment adaptability, durability and working efficiency for complex working conditions. In addition to high-quality products, we provide full-cycle supporting services, including equipment operation training, technical guidance and timely after-sales support, helping global customers maximize equipment utilization and create higher economic benefits. Focusing on practical and durable mining and construction equipment, our YT28 rock drill is a cost-effective and trustworthy solution for various rock drilling projects.
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