KJ212-CYTJ45B Hydraulic Tunneling Drilling Rig

Model: KJ212-CYTJ45B

Climbing capacity: ≤11°

Operating range: 3.5×1.8-5×4.8 m²     

(extension boom)3.5×2.5-6.5×5 m²

Product Applications Product Features Technical Parameters Related Products


KJ212-CYTJ45(B) hydraulic tunneling drilling rig used to drill vertical, inclined and horizontal blast holes in low tunnels. Through the section (2.5m*1.5m), the drill rig is suitably qualified for any tunnels whose section falls in the range of 3.5m*1.8m-5m*4.8m.


  • The firm flexible boom is capable of optical coverage of the section; 360° rotation and self-leveling beam make drill positioning easy;
  • The boom can also be used for the drilling of lateral cross-cut and rock bolting;
  • 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 mannner;
  • All the relevant parts are kept in good protection, meanwhile maintenance easily.


Technical Parameters

Technical Parameters      
Dimensions and weight Air & water system
Length 11160mm Air compressor 1*JN5.5 Oil Consumption of lubrication 180-250g/h
Width 2000mm Capacity of air compressor 0.75m³/min
Height 1465/1985mm Pressure 6-8bar Power of water pump 1.5kW 4kW
Weight Appr. 11000㎏ Device of shank lubrication Electronic pulse lubrication pump
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°)
Safety protection Diesel engine Cummins QSB3.9-C80-31
Tires 300-15
Noise level <100dB(A) Exhaust purification Exhaust catalyst Steering mechanism Articulated steering: ±35°
Lifting safety roof Meet the requirements of FOPS and ROPS Drive system Closed hydraulic system for four-wheel driving Parking braking Multidisc brake
    Swing angle Swing of rear axle: ±6° Emergency braking
      Fuel tank 30L
Drilling system Electric hydraulic power unit
Rock drill HC50 HC95LMW/RD 18U Motor 45kW 55kW
Rod size R38 /T38 Impact /Feed/ Positioning Axial variable displacement piston pump
Impact power 13kW 20kW/18kW Rotation Gear pump
Impact Frequency 62Hz 62Hz/ 57Hz Filter fineness 10µ
Hole diameter Φ32-76mm Φ42-102mm Hydraulic oil tank 240L
Beam rotation 360° Hydraulic cooler Water cooler
Feed extension 1600mm Working voltage 380V
Model of drill boom K 20 Frequency 50Hz
Form of drill boom Self-leveling Starting method Star-triangle
Boom extension 1200mm Cable specifications 3×35+3G6 3×50+3G10
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