KT7D/KT7H Integrated DTH Drilling Rig for Open Use
The integrated DTH drilling rig is designed to meet the demands of on-site mining operations. It is a fully automatic rod-handling DTH drilling rig, suitable for borehole diameters of 90-135mm and a drilling depth of up to 24 meters. The rig is equipped with a high-power Yuchai engine, a two-stage 15/18 compressor airend, and a large-section high-strength aluminum alloy guide rail, along with an optimized hydraulic system. It integrates the drilling system and the screw air compression system into a single unit, both driven by a six-cylinder diesel engine. This results in a compact structure and easy mobility. The high-pressure integrated rig features a unique design with a large airflow capacity of 15m³/min and high pressure of 1.8MPa, ensuring sufficient air supply for the drilling hammer.
Key ParametersDrilling Diameter: Ø90-135mm
Drilling Depth: 24m
Engine: Yuchai YCA07240-T300 (176kW/2200r/min)
- Large-section aluminum alloy guide rail with fully automatic rod handling system
The large-section aluminum alloy guide rail ensures sufficient strength and is paired with a flexible and convenient fully automatic rod handling system and rod storage. This setup improves work efficiency while reducing labor intensity. The rod storage has a capacity of 7 1 rods, supporting a drilling depth of 24 meters.
- Centralized control platform
The highly centralized control console features a simple and convenient layout, making it easier to intuitively assess the rig's status. All action indicators are clear, and the operation is straightforward.
- High-efficiency dust collection system
Equipped with a dry, high-efficiency dust collection system to provide a comfortable working environment.
- Engineering Crawler with Hydraulic Levelling Cylinders
The engineering crawler is equipped with frame leveling hydraulic cylinders, providing strong climbing ability and suitability for various rugged terrains.
| Drilling hardness | f=6-20 |
| Drilling diameter | Ø90-135mm |
| Economical drilling depth | 24m |
| Travelling speed | 0-4km/h |
| Gradeability | ≤25° |
| Ground clearance | 430mm |
| Diesel engine | Yuchai YCA07240-T300 (176kW/2200r/min) |
| Screw compressor | Two stage compression 15m /min/18bar |
| Dimensions | 8000×2300×2700mm |
| Weight | 10000kg |
| Rotation speed | 180rpm |
| Rotation torque | 1560N ·m |
| Max. feed force | 22KN |
| Lifting angle of drill boom | Down 16°, up 48° |
| Tilt angle of feed beam | 147° |
| Swing angle of feed beam | Left 52°, right 53° |
| Swing angle of drill boom | Left 50°, right 58° |
| Leveling angle | ±10° |
| Feed distance | 3590mm |
| Compensation length of feed beam | 900mm |
| DTH hammer | K3/K4 |
| Drill pipe | Ø64×3m |
| Drill pipe storage capacity | 7 1 pipes |
| Drill pipe handling | Automatic drill pipe handling |
| Dust collector | 8 filter elements |
