Hydraulic Tunneling Drilling Rig, KJ422

Hydraulic Tunneling Drilling Rig, KJ422
Hydraulic Tunneling Drilling Rig, KJ422
Hydraulic Tunneling Drilling Rig, KJ422
Hydraulic Tunneling Drilling Rig, KJ422
Hydraulic Tunneling Drilling Rig, KJ422
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
Structure Diagram
Technical Specifications
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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