KJ311 (Double slideway) Hydraulic Tunneling Drilling Rig


KJ311(Double slideway) hydraulic tunneling drilling rig is suitably qualified for the drilling of hard rock mine whose section falls in the range of 12-35 square meters.

Product Applications Product Features Technical Parameters Related Products


KJ311 (Double slideway) hydraulic tunneling drilling rig is suitably qualified for the drilling of hard rock mine whose section falls in the range of 12-35 square meters.

Performance Characteristics

  • The firm flexible boom is capable of optical coverage of the section; 360° rotation and self-leveling beam make drill positioning easy; It can also be used for the drilling of lateral cross-cut and rock bolt;
  • The drill rig provides a good view for the operator; balanced layout and the articulated chassis of four-wheel drive ensure the flexible, fast and safe driving in the narrow tunnel;
  • The stepped piston is used for the high-frequency impacting rock drill and this can improve the transmission efficiency of impact wave and drilling speed and reduce the consumption of drilling tools and make it in good condition;
  • Considerable space and automatic functions enable the driver to concentrate on drilling in a safe, fast and accurate manner;
  • All the relevant parts are kept in good protection, meanwhile maintenance easily.

Technical Parameters

Technical Parameters
Dimensions and weight Air & water system
Length 12000mm Air compressor 1*JN4 Oil Consumption of lubrication 180-250g/h
Width 1750mm Capacity of air compressor 0.5m³/min
Height 2000/3000mm Pressure 6-8bar Capacity of water pump 1xCR3 1xCR5
Weight Appr. 12000㎏ Device of shank lubrication Electronic pulse lubrication pump Power 1.5kW 5.5kW
Tramming speed on flat ground 10km/h Air consumption of lubrication 0.3m³/min Capacity of water pump 3m3/h 6m3/h
Maximum climbing capacity 25%(14°) Chassis
Safety protection Diesel engine Cummins QSB3.9-C80-31
Tires 11.00-20
Noise level <100dB(A) Exhaust purification Exhaust catalyst Steering mechanism Articulated steering: ±40°
Lifting safety roof Meet the requirements of FOPS and ROPS Drive system track travelling driven by double-speed motor Parking braking Wet multidisc brake of reducer
    Swing angle Swing of rear axle: ±10° Travelling braking Two-circuit hydraulic brake
        Fuel tank 60L
Drilling system Electric hydraulic power unit
Rock drill 1×HC50/R38 1×HC95SA/T38 1×HC95LM/R38 Motor 55kW 45kw 75kW
Impact power 13kW 20kW 24kW Impact /Feed/ Positioning Axial variable displacement piston pump
Impact flow 105L/min 95-118L/min 100-120L/min Rotation Gear pump
Impact pressure 130bar 165-200bar 180bar Filter fineness 10µ
Maximum rotary pressure 150bar 210bar 210bar Hydraulic oil tank 240L
Impact Frequency 62Hz 62Hz 62 Hz Hydraulic cooler Water cooler
Torque 325Nm 597Nm 764Nm Working voltage 380V
Hole diameter Φ32-76mm Φ42-102mm Φ42-102mm Frequency 50Hz
Beam rotation 360° Starting method Star-triangle
Feed extension 1600mm Cable reel 1*F440
Model of drill boom K 26F Length of reel cabling 100m 80m
Form of drill boom Self-leveling Outer diameter of cable Φ28mm Φ32mm
Boom extension 1200mm Cable specifications 3×35+3G6 3×50+3G6
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