KJ321 Tunnel Jumbo Drilling Rig

  • KJ321 Tunnel Jumbo Drilling Rig
  • Climbing Capacity:≦14°
  • Operating Range: 12-45㎡

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FEATURES

KJ321 Tunnel Jumbo Drilling Rig

Features:

KJ321- hydraulic tunnelling drilling rig is suitably qualified for the drilling of tunnels whose section falls in the range of 12-45 square

meters,capable of drilling the blast hole and rock bolting in a vertical,inclined and horizontal way.

The drilling rig is fitted with the flexible boom in two symmetric rectangular coordinates,without any operation blind spot.360 rotation and

self-leveling beam make drill positioning easy;it can also be used for the drilling of lateral cross-cut and rock bolting.

The drilling 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.

 

SPECIFICATIONS

 

Dimensions and weight Air & water system
Length 12000mm Air compressor 1*JN11 Oil Consumption of lubrication 2×180-250g/h
Width 2160mm Capacity of air compressor 1.55m³/min
Height 2500/3300mm Pressure 8bar Water pump 1xCRI10-20
Weight Appr. 22000kgs Device of shank lubrication Electronic pulse lubrication pump Power 7.5kW
Tramming speed on flat ground 10km/h
Air consumption of lubrication 2×0.3m³/min Capacity of water pump 10m3/h
Maximum climbing capacity 25%( 14°)
Safety protection Chassis
Noise level <100dB(A) Diesel engine Cummins QSB3.9-C125,93KW,2200rpm Travelling braking Hydrostatic braking
Lifting safety roof Meet the requirements of FOPS and ROPS Exhaust purification Exhaust catalyst Parking braking Machanical Brake
Drive system Hydraulic Torque Converter+Gear Pump Fuel tank 120L
Drilling system Electric hydraulic power unit
Rock drill 2×HC50/R38 2×HC95LM/R38 Motor 2x45kW 2x75kW
Impact power 13kW 24kW Impact /Feed/ Positioning Axial variable displacement piston pump
Impact flow 105L/min 100-120L/min Rotation Gear pump
Impact pressure 130bar 180bar Filter fineness 10µ
Maximum rotary pressure 150bar 210bar Hydraulic oil tank 400L
Impact Frequency 62Hz 62 Hz Hydraulic cooler Water cooler
Torque 325Nm 764Nm Working voltage 380V
Hole diameter Φ32-76mm Φ42-102mm Frequency 50Hz
Beam rotation 360° Starting method Star-triangle
Feed extension 1600mm Cable reel 1*CRC1016
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+2×1.5 3×50+3G6+2×1.5

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