The KT20S integrated dual-power down the hole drill rig for open use is a heavy duty piece of drilling equipment developed by our company. It is fully equipped to meet the needs of large open-pit mines. Its travelling, propulsion, rotation, and angle adjustments are hydraulically driven. While it is traveling, the power stems from the diesel engine. The high air pressure screw nose and high air pressure DTH hammer help to ensure high efficiency drilling. It is equipped with a hydraulic dry dust collector and a wet dust remover is optional. The hydraulic mechanism is used to dismount the drilling rod, the floating joint protects the thread of the drilling rod, and the automatic unloading rod device to relieve labor intensity. The air conditioned cab provides a comfortable space for the operator.
Technical Parameters
| Model of drill rig | KT20S |
| Drilling hardness | f=6-20 |
| Drilling diameter | 135-254 mm |
| Depth of economical drilling (depth of automatic extension rod) | 35 m |
| Drilling rod (φ× length of drilling rod) | φ102/φ114/φ127/φ146×5000 mm |
| DTH Hammer | K5、K6、K8 |
| Method of dust removal | Method of dust removal Dry (hydraulic cyclonic laminar flow)/wet (optional) |
| Method of extension rod | Automatic unloading rod |
| Protection of thread of drilling rod | Equipped with floating device to protect the thread of drilling rod |
| Power | 200/250/315 kW |
| Maximum displacement of screw compressor | 20/26/31 m³/min |
| Maximum discharge pressure of screw compressor | 25 bar |
| Model of diesel engine | QSB3.9-C125-30 |
| Power of diesel engine/revolving speed | 93 kW /2200/r/min |
| Model of motor | Y2-280-4 |
| Power of motor/revolving speed | 75 kW /1470/r/min |
| Travelling speed | 0-2.2 Km/h |
| Maximum tractor | 175 kN |
| Climbing capacity | 25° |
| Ground clearance | 480 mm |
| Lifting angle of drill boom | 42° |
| Tilt angle of Beam | 123° |
| Swing angle of boom | Left 42°, right 33° |
| Swing angle of drill boom | Left 20°, right 40° |
| Maximum push-pull force | 65 kN |
| One-time advance length | 5000 mm |
| Compensation length | 1200 mm |
| Revolving speed of gyrator | 0-70 r/min |
| Rotary torque | 6100 N·m |
| Weight | 32000 Kg |
| Working condition (L×W×H) | 10500×4400×9300 mm |
| Transport condition (L×W×H) | 11000×3300×3400 mm |
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