Integrated Surface DTH Drilling Rig, KT7D
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Down-the-hole drill rig for open-pit mining
This machine integrates a hydraulic long hole drilling rig and a screw air compressor. It can be used for either vertical drilling or angle drilling, which is suitable for drilling blastholes and pre-splitting holes in open-pit mines and stonework sites. The drilling machine is powered by a Yuchai off-road diesel engine that meets China Stage III emission standards. It is also equipped with a feed beam made of aluminium alloy, hands-free rod handling system, a floating clamp, a rod lubrication module and an advanced dust collector. This machine is highly automated is made of robust material. It is easy to use and convenient to be transported from site to site.
| Model | |
| Rock hardness | F=6-20 |
| Hole diameter | ⌀90-130mm |
| Hole diameter | 24m |
| Tramming speed | 2.5/4.0km/h |
| Gradeability | 25° |
| Ground clearance | 430mm |
| Total power | 176kW/2200r/min |
| Diesel engine | YuchaiYCA07240-T300 |
| Free air delivery of compressor | 15m³/min |
| Discharge pressure of compressor | 252 psi |
| Dimensions | 8000 ×2300 ×2700mm |
| Total weight | 10000kg |
| Rotation speed | 0-180/0-120r/min |
| Maxium torque | 1.56/1.9kN.m |
| Maximum push force | 22.58kN |
| Boom lift angle | Up: 48°, down: 16° |
| Tilt angle | 147° |
| Swing angle | Left: 52°, right: 53° / left: 10°, right: 97° |
| Lateral horizontal swing angle | Right: -1.7-91.5° |
| Boom swing angle | Right: 58°, left: 50° |
| Frame oscillation angle | Up: 10°, down: 10° |
| Feed length | 3090mm |
| Feed extension | 900mm |
| DTH hammer | M30A/K30/K40 |
| Rod diameter | ⌀64×3000mm /Ø76×3000mm |
| Dust collector | Dry (hydraulic cyclonic laminar flow) |
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