The KT7C high air-pressure down the hole drill rig for open use is an advanced drilling device integrating down the hole drilling system and screw air compression system, typical of compact structure, excellent integrity and mobility.
The KT7C high air-pressure down the hole drill rig for open use is an advanced drilling device integrating down the hole drilling system and screw air compression system, typical of compact structure, excellent integrity and mobility. Equipped with the single-stage high air-pressure screw host, the flow stands at 13m3/min and air pressure at 1.7MPa, thereby proving high-valued parameters. The drill rig provides strong power for the high air-pressure down the hole hammer and the drilling speed is higher than that of middle air-pressure drill rig by 20%-50%. It is characterized by energy conservation, efficiency, safety, environment-friendliness, flexibility, simple operation and stable performance, etc. Equipped with the Yuchai China stage III engine, the drill rig meets national standards for emissions and environment.
Detail features
Model of drill rig | KT7C |
Drilling hardness | f=6-20 |
Drilling diameter | 80-105 mm |
Depth of economical drilling | 25 m |
Travelling speed | 2.5/4.0 km/h |
Climbing capacity | 30° |
Ground clearance | 430 mm |
Power of complete machine | 195 kW |
Diesel engine | Yuchai YC6A260-T303 |
Capacity of screw compressor | 13 m3/min |
Discharge pressure of screw compressor | 17 bar |
Outer dimensions (L×W×H) | 8000×2260×2800 mm |
Weight | 9500 kg |
Rotation speed of gyrator | 0-120 r/min |
Rotary torque | 1900 N*m |
Maximum push-pull force | 25000 N |
Lifting angle of drill boom | Up 28°, down 42° |
Tilt angle of beam | 129° |
Swing angle of carriage | Right 38 °,left 35° |
Lateral horizontal swing angle of carriage | Right 42°~89° |
Swing angel of drill boom | Right 39°, left 60° |
Leveling angle of frame | Up 10°, down 9° |
One-time advance length | 3000 mm |
Compensation length | 900 mm |
DTH hammer | K3 |
Drilling rod | φ64×3000 mm |
Method of dust collecting | Dry type (hydraulic cyclonic laminar flow) |