KJ422 Underground Mining Drill Rigs and Tunneling Jumbo

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KJ422 Underground Mining Drill Rigs and Tunneling Jumbo to tunneling operation at the section of 16-95m2 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 KJ422 Underground Mining Drill Rigs and Tunneling Jumbo

Dimensions and Weight

Length

15000mm

Width

2550mm

Height

2400/3100 mm

Weight

28000 kg

Travelling speed, level

10 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

2×HC95LM

Impact power

21KW

Impact flow

100-120L/min

Impact pressure

180-200bar

Torque

764Nm

Beam ratation

360°

Feed extension

1600mm

Model of boom

K 50

Form of boom

Automatic leveling

Extension of drill boom 2500mm

Working platform

Max.300kg

Electric Hydraulic pump station

Electric motor

2×75kw

Impact- propelling-Boom

Variable axial piston pump

Turn around

Gear pumps

Filter precision

10μ

Hydraulic oil tank

400L

Hydraulic cooler

Water cooler

Working pressure

380V

Frequency

50Hz

Starting method

Star - triangle

Cable reel

1×CRC1016

Cable capacity of the reel

100m

Air and water system

Air Compressor

1×JN11

Capacity

1.55m3/min

Pressure

8bar

Device of shank lubrication

Electrical pulse lubrication pump

Air consumption for lubrication

2×0.3m3/min

Oil consumption for lubrication

2×180-250g/h

Water Pump

1×CR15

Power

11kw

Pump Capacity

12m3/h

Chassis

Diesel engine

Cummins QSB5.9-C160 119KW/2200rpm

Exhaust purification

Exhaust catalyst

Drive system

Hydraulic torque converter+gearbox

Travel brake

Wet bridge brake

Parking brake

Mechanical brake

Fuel tank

120L

Overall Dimension (including an optional auxiliary power station)

KJ311 Underground Mining Drill Rigs and Tunneling Jumbo

Turning Radius

KJ311 Underground Mining Drill Rigs and Tunneling Jumbo

Coverage area

KJ311 Underground Mining Drill Rigs and Tunneling Jumbo

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