Integrated Surface DTH Drilling Rig, KT20
Down-the-hole drill rig for open-pit mining
This machine is unprecedentedly good that is turned out based on previous experiences, making it an extraordinary choice for operators working in large-scale open-pit mines. The drilling machine is driven by a powerful engine that activates the interior hydraulic movement system, high-pressure air end and DHT hammer, through which it can drill rocks efficiently, change angles and move smoothly. The machine is equipped with several advanced modules, such as a hydraulic dust collector that can reduce harm to environment, a hands-free hydraulic rod handling module, a floating rig joint protecting rod thread and an anti-jamming module. With these features, the machine can be operated by one person. It also provides a cozy working environment for operators, with an air-conditioner installed in its large cab.
| Model | |
| Dimensions | 11110×2716×3600mm |
| Total weight | 23000kg |
| Rock hardness | F=6-20 |
| Hole diameter | ⌀135-190mm |
| Drilling depth | 35m |
| Ground clearance | 430mm |
| Tramming speed | 3km/h |
| Gradeability | 25° |
| Total power | 287kW |
| Diesel engine | Caterpillar C11 |
| Free air delivery of compressor | 22m³/min |
| Discharge pressure of compressor | 280 psi |
| Rotation speed | 0-118r/min |
| Maxium torque | 4.1kN.m |
| Maximum push force | 65kN |
| Tilt angle | 125° |
| Swing angle | Left: 33°, right: 97° |
| Boom swing angle | Left: 15°, right: 42° |
| Frame oscillation angle | Up: 10°, down: 10° |
| Feed extension | 1800mm |
| DTH hammer | K5, K6 |
| Rod diameter | ⌀89×5000/Ø102×5000mm |
| Dust collector | Dry (hydraulic cyclonic laminar flow) |
| Rod handling | Hands-free rod handling |
| Anti-Jamming | Electro-hydraulic control anti-sticking |
| Rod lubrication | Automatic lubrication |
| Rod thread protection | Floating clamp is equipped for protection |
| Drilling process display | Real-time display of drilling angle and depth |
- A disc-like rod handling system, by which the rod can reach as deep as 36 meters.
- Carriage’swing angle is as wide as 130°, with the right side being 97° and the left, 33°. It can drill a horizontal hole and a vertical hole without changing the pivot. The height of the horizontal hole ranges from 550-4200 mm.
- A Caterpillar engine is equipped, delivering powerful and stable performance.
- A two-terminal engine is used, which is compact and easy to fix.
- DHT hammer works very well since an air compressor is installed that delivers fresh air at 22m³/min and 350 psi.
- Automatic leveling of the track guarantees the stability of the machine in different terrain.
- Dual rotary drills prevent deflection when drilling.
- Hydraulic and electronic components are all imports.
