KJ211 Underground Mining Drill Rigs and Tunneling Jumbo
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KJ211 Underground Mining Drill Rigs and Tunneling Jumbo 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 7-35m2.

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 Underground Mining Drill Rigs and Tunneling Jumbo

Dimensions versus Weight

Length

10000mm

Width

1600mm

Height

1850/2650mm

Weight

11000 kg

Travelling speed, level

10 km/h

Climbing capacity

25% (14°)

Safety protection

Noise level

<100 dB(A)

Lifting safety roof

Meet the requirements of FOPS and ROPS.

Drilling system

Rock drilling

1×HC50/R38

1×HC109/R38

1×HC95LM/R38

Impact power

13kW

18.8kW

21KW

Impact flow

105L/min

135L/min

100-120L/min

Impact pressure

130bar

135bar

180bar

Maximum rotation pressure

150bar

150bar

210bar

Frequency

62 Hz

47 Hz

62Hz

Torque

325Nm

780Nm

764Nm

Hole diameter

Φ32-76mm

Φ42-102mm

Φ42-102mm

Rolling of the propelling beam

360°

Feed extension

1600mm

Drill rod

R38-H35-R32-3700

Model

K26F

Form

Automatic leveling

Extension of drill boom

1200mm

Electric Hydraulic pump unit

Electric motor

45kW

75kw

Impact- propelling-Boom

Variable axial piston pump

Rotation

Gear pumps

Filter precision

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

Outer diameter of cable

Φ28mm

Φ32mm

Specifications of cable

3×35+3G6+2×1.5

3×50+3G6+2×1.5

Air and water system

Air Compressor

1×JN5

Capacity

0.5m3/min

Pressure

6-8bar

Device of shank lubrication

Electrical pulse lubrication pump

Air consumption for lubrication

0.3m3/min

Oil consumption for lubrication

180-250g/h

Water Pump

1×CR3

1×CR5

Power

1.5kW

5.5kw

Pump Capacity

3m3/h

6m3/h

Chassis

Diesel engine

QSB3.9-C80-31 60kW,2200rpm

Exhaust purification

Exhaust catalyst

Transmission

Closed-wheel drive traveling system

Swinging angle

The rear axle swings for ±6°

Tire

300-15

Steering mechanism

±35° articulated steering

Travel brake

Double loop hydraulic brake

Parking brake

Multi-disk wet brake for reducer

Fuel tank

30L

Overall Dimension (including an optional auxiliary power station)

KJ211 Underground Mining Drill Rigs and Tunneling Jumbo

Turning Diagram

KJ211 Underground Mining Drill Rigs and Tunneling Jumbo

Coverage area

KJ211 Underground Mining Drill Rigs and Tunneling Jumbo
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