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High-efficiency pneumatic drilling machine for demanding rock excavation
The YT27 Air-Leg Rock Drill is a high-efficiency pneumatic drilling machine engineered for the most demanding rock excavation environments. Primarily utilized in mining tunnel development, this robust equipment is equally effective in railway construction, water conservancy projects, and national defense stonework engineering applications. Its advanced design delivers exceptional performance in challenging geological conditions while maintaining operator comfort and safety.
Operates with FY250 oiler and FT160A/FT160B air-leg systems for wet drilling in medium-to-hard rocks (hardness coefficient: f=8–18).
Drills horizontal and inclined blast holes (34–42 mm diameter) with an effective depth of 5 meters.
Excels in borehole flushing strength and delivers high rotational torque, outperforming comparable models in productivity.
Features a flange control valve for precise airflow regulation, enhancing energy efficiency and reducing operational costs.
Detachable air-leg allows mounting on drilling carriages or frames for flexible deployment in various configurations.
Integrated silencer reduces noise pollution while centralized controls improve onsite maneuverability and reduce operator fatigue.
| Parameter | Specification |
|---|---|
| Model | YT27 |
| Weight (kg) | 27 |
| Length (mm) | 668 |
| Cylinder Dia*Stroke (mm) | 80 * 60 |
| Working Pressure (Mpa) | 0.4-0.63 |
| Impact Energy (J) | ≥75.5 |
| Impact Frequency (Hz) | ≥36.7 |
| Air Consumption (L/S) | ≤83.3 |
| Hose Size (mm) | 25 |
| Rock Drill Hose Diameter (mm) | 34-42 |
| Rock Drill Hose Depth (m) | 5 |
| Shank Size (mm) | 22×108 |
Ideal for tunnel construction and major mining projects due to its lightweight design (27 kg), low vibration, and rapid drilling speed. The integrated silencer reduces noise pollution, while centralized controls improve onsite maneuverability.
Primary application area
Tunneling & infrastructure
Dam & reservoir projects
Stonework engineering
The YT27 Air Leg Rock Drill delivers unmatched performance for demanding rock excavation projects worldwide.
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