KJ211 All-hydraulic Tunneling Jumbo Drilling Rig

Length:11150mm

Width:1600mm

Height:1850/2650mm

Weight:11000 kg

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  • Product description
  • Technical Parameters
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KJ211 All-hydraulic Tunneling Jumbo Drilling Rig is designed for mining, preparation and tunneling. As a hydraulic rock-drilling jumbo with independent operation, it can drill vertical, inclined and horizontal blast holes; applicable to the hard rock tunneling with a section of 12-35m².
Its firm and reliable universal big arm has the best shape of section coverage, boosting the 360° overturn and automatic leveling of the beam for rapid and convenient borehole positioning. The big arm can also be used for lateral cross hole opening and anchor rod boring operations.
The arrangement of the jumbo ensures the good view of the operator.
Evenly-arranged and powerful 4-wheel drive hinge chassis ensures flexible, quick and safe driving in a narrow roadway.
The high-frequency percussion rock driller uses the cascaded piston to optimize the efficiency of shock wave transmission, raise the drilling speed, reduce clamping bit consumption and enhance the soundness of device.
The big space of operation and a series of automatic functions can help the driver to concentrate their attention to safe, rapid and accurate tunneling.
All its repair and maintenance parts have been protected well, and its repair and maintenance are easy. 



 Technical Parameters of KJ211 All-hydraulic Tunneling Jumbo

Dimensions and weight
Length 11150 mm
Width 1600 mm
Height 1850/2650 mm
Weight 11000 kg
Travelling speed on flat ground 10 km/h
Climbing capacity 25% (14°)
Security
Noise level <110 dB(A)
Lifting safety ceiling Meet the requirements of FOPS and ROPS.
Drilling system
Rock drill 1×HC50/R38 1×HC109/R38 1×HC95LM/R38
Impact power 13 kw 18.8 kw 21 kw
Impact flow 105 L/min 135 L/min 100-120 L/min
Impact pressure 130 bar 135 bar 180 bar
Maximum rotation pressure 150 bar 150 bar 210 bar
Imapact Frequency 62 Hz 47 Hz 62 Hz
Torque 325Nm 780Nm 764Nm
Hole diameter φ32-76 mm φ45-102 mm φ42-102 mm
Beam rotation 360°
Feed extension 1600mm
Model of drill boom K22
Form of drill boom Self-leveling
Extension of drill boom 800mm
Electric hydraulic power unit
Electric motor 45kw 55kw 75kw
Impact/ Feed/ Positioning Axial variable displacement piston pump
Rotation Gear pump
Filter fineness 10μ
Hydraulic oil tank 240L
Hydraulic cooler Water cooler
Working pressure 380V
Frequency 50Hz
Starting method Star - triangle
Cable reel 1×F440
Cable capacity of the reel 100m / 80m
Specifications of cable 3×35+3G6+2×1.5 / 3×50+3G6+2×1.5
Air and water system
Air compressor 1×JN4
Displacement 0.5 m³/min
Pressure 6-8 bar
Device of shank lubrication Electronic pulse lubrication pump
Air consumption of lubrication 0.3 m³/min
Oil consumption of lubrication 180-250 g/h
Pump 1×CR3 / 1×CR5
Power 1.5 kw / 5.5 kw
Pump displacement 3 m³/h / 6 m³/h
Chassis
Diesel engine Cummins QSB3.9-C80-31 (60kw,2200rpm)
Exhaust purification Exhaust catalyst
Drive system Closed hydraulic system for four-wheel driving
Swing angle Swing of rear axle: ±6°
Tires 300-15
Steering mechanism Articulated steering: ±35°
Parking braking Wet multidisc brake
Travelling braking Hydrostatic braking
Fuel tank 30L

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