Hydraulic Tunneling Drilling Rig, KJ422
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Two-boom face drilling rig
- Dimensions (L×W×H): 15000×2550×2400/3100mm
- Weight: Approx. 28000kg
- Maximum gradeability: 25%(14°)
- Range of cross section: 16-95m²
KJ422 hydraulic tunneling drilling rig is a tunneling jumbo with two booms, designed for drilling vertical, inclined and horizontal blast holes and bolt holes in mining and tunneling projects. This drilling rig is suitable for underground cross sections ranging from 16m² to 95m².
Video Show| Dimensions and weight | ||||
| Length | 15000mm | |||
| Width | 2550mm | |||
| Height | 2400/3100mm | |||
| Weight | Approx. 28000kg | |||
| 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 | 1×JN11 | Oil consumption of lubrication | 2×180-250g/h | |
| Capacity of air compressor | 1.55m³/min | |||
| Pressure | 8bar | Water pump | 1×CRI10-22 | |
| Shank lubrication device | Electronic pulse lubrication pump | Power | 7.5kW | |
| Air consumption of lubrication | 2×0.3m³/min | Capacity of water pump | 10m³/h | |
| Chassis | ||||
| Diesel engine | Cummins QSB5.9-C160 119kW/2200rpm | Travelling braking | Wet type brake | |
| Exhaust purification | Exhaust catalyzer | Parking braking | Mechanical brake | |
| Drive system | Hydraulic torque converter gearbox | Fuel tank | 120L | |
| Drilling system | ||||
| Rock drill (drifter) | 2×HC95LM | |||
| Impact power | 21kW | |||
| Impact flow | 100-120L/min | |||
| Impact pressure | 180-200bar | |||
| Impact frequency | 54-62Hz | |||
| Torque | 764Nm | |||
| Beam rotation | 360° | |||
| Feed extension | 1600mm | |||
| Model of drill boom | K50 | |||
| Form of drill boom | Automatic parallelism | |||
| Boom extension | 2500mm | |||
| Operator's basket (optional) | Maximum 300kg | |||
| Electric hydraulic power unit | ||||
| Motor | 2×75kW Three-phase motor | |||
| Impact/Feed/Positioning | Variable displacement axial piston pump | |||
| Rotation | Gear pump | |||
| Filter fineness | 10µ | |||
| Hydraulic oil tank | 400L | |||
| Hydraulic cooler | Air cooler | |||
| Working voltage | 380V | |||
| Frequency | 50Hz | |||
| Starting method | Star/delta | |||
| Cable reel | 1×CRC1016 | |||
| Length of reel cabling | 100m | |||
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