Hydraulic Tunneling Drilling Rig, KJ311-4
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Diesel engine drilling rig
- Dimensions (L×W×H): 8200×1780×2000/3000mm
- Weight: Approx.12000kg
- Maximum gradeability: 25%(14°)
KJ311-4 hydraulic tunneling drilling rig is built for underground mining and tunneling operations requiring multi-station drilling with less time spent. The drilling rig is powered by diesel engine to provide reliable performance, and it has air compressor and water tank, eliminating the need for external water and air pipeline as well as power source. The hydraulic tunneling drilling rig is primarily suited for large block caving mining projects that relies on natural forces to break the rock, it can achieve fast rock drilling and easy transport.
| Dimensions and weight | |||||
| Length | 8200mm | ||||
| Width | 1780mm | ||||
| Height | 2000/3000mm | ||||
| Weight | Approx.12000kg | ||||
| Tramming speed on flat ground | 10km/h | ||||
| Maximum gradeability | 25%(14°) | ||||
| Safety protection | |||||
| Noise level | < 100dB(A) | ||||
| Lifting safety roof | Meet the requirements of FOPS and ROPS | ||||
| Air and water system | |||||
| Air compressor | CP9952 | Oil consumption of lubrication | 180-250g/h | ||
| Capacity of air compressor | 0.3m³/min | ||||
| Pressure | 3-5bar | Capacity of water pump | 3m³/h | ||
| Shank lubrication device | Electronic pulse lubrication pump | ||||
| Chassis | |||||
| Diesel engine | Cummins QSB3.9-C125 /93kW/2200rpm | Tires | 11.00-20 | ||
| Exhaust purification | Exhaust catalyzer | Steering mechanism | Articulated steering angle: ±40° | ||
| Drive system | Hydraulic motor-Gearbox-Wet axle (four-wheel drive) | Travelling braking | Two-circuit hydraulic brake | ||
| Swing angle | Swing of rear axle: ±10° | Parking braking | Wet multidisc brake of reducer | ||
| Fuel tank | 60L | ||||
| Drilling system | |||||
| Rock drill (drifter) | 1×HC50/R38 | ||||
| Impact power | 13kW | ||||
| Impact flow | 105L/min | ||||
| Impact pressure | 130bar | ||||
| Maximum rotary pressure | 150bar | ||||
| Impact frequency | 62Hz | ||||
| Torque | 325Nm | ||||
| Hole diameter | Ø32-76mm | ||||
| Beam rotation | 360° | ||||
| Feed extension | 850mm | ||||
| Drilling depth | 1000mm | 1500mm | |||
| Drill rod | R38-H35-R32-1350 | R38-H35-R32-1850 | |||
| Model of drill boom | K25 | ||||
| Form of drill boom | Telescopic | ||||
| Boom extension | 1200mm | ||||
| Electric hydraulic power unit | |||||
| Impact/Feed/Positioning | Variable displacement axial piston pump | ||||
| Rotation | Gear pump | ||||
| Filter fineness | 10µ | ||||
| Hydraulic oil tank | 240L | ||||
| Hydraulic cooler | Air cooler | ||||
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