KJ311(Plateau) Underground Mining Drill Rigs and Tunneling Jumbo
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KJ311(Plateau) Underground Mining Drill Rigs and Tunneling Jumbo is designed for high altitude construction,it is suitable for tunneling operation at the section of 12-35m2 in hard-rock mine.
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. 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 KJ311(Plateau) Underground Mining Drill Rigs and Tunneling Jumbo

Dimensions and Weight

Length

11300mm

Width

1750mm

Height

2000/3000 mm

Weight

12000 kg

Travelling speed, level

2.5 km/h

Climbing capacity

14°

Safe protection

Noise level

<100 dB(A)

Lifting safety ceiling

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

Aperture

32-89mm

45-102mm

Φ42-102mm

Beam ratation

360°

Feed extension

1600mm

Model of boom

K26F

Form of boom

Automatic leveling

Extension of drill boom

1200mm

Electric Hydraulic pump station

Electric motor(Plateau type)

45kW

75kw

Impact- propelling-Boom

Variable axial piston pump

Turn around

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

Cummins QSB3.9-C125 93kw/2600rpm

Exhaust purification

Exhaust catalyst

Drive system

Track travelling driven by double-speed hydraulic motor

Swinging angle

The rear axle swings for ±10°

Tire

11.00-20

Steering mechanism

±40° articulated steering

Travel brake

Two-circuit hydraulic brake

Parking brake

Wet multidisc brake

Fuel tank

60L

Overall Dimension (including an optional auxiliary power station)

KJ311 Underground Mining Drill Rigs and Tunneling Jumbo

Turning Diagram

KJ311 Underground Mining Drill Rigs and Tunneling Jumbo

Coverage area

KJ311 Underground Mining Drill Rigs and Tunneling Jumbo
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