KJ212 Underground Mining Drill Rigs and Tunneling Jumbo can drill vertical, inclined and horizontal blast holes, designed exclusively for low roadways, with a passage section of 2.5m*1.5m, applicable to the roadway tunneling operations with a section of 3.5m*1.8m-5m*4.8m.
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 KJ212 Underground Mining Drill Rigs and Tunneling Jumbo
Dimensions versus Weight |
Drilling system |
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Length |
11160mm |
Rock drilling |
1×HC50/R38 |
1×HC109/R38 |
Width |
2000mm |
Impact power |
13kW |
18.8kW |
Height |
1465/1985mm |
Impact pressure |
130bar |
135L/min |
Weight |
11000 kg |
Maximum rotation pressure |
150bar |
135bar |
Travelling speed, level |
10km/h |
Frequency |
62Hz |
150bar |
Climbing capacity |
20% |
Torque |
325Nm |
47 Hz |
Security |
Aperture |
Φ45-76mm |
780Nm |
|
Noise level |
<100dB(A) |
Rolling of the propelling beam |
360° |
45-102mm |
Lifting safety ceiling |
It conforms to the requirement to prevent rolling and falling rock. |
Compensative travel of propelling beam |
1600mm |
|
Wind and water route system |
BoomModel |
K 20 |
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Air Compressor |
1×JN5 |
BoomForm |
Automatic leveling |
|
Capacity |
0.5m3/min |
Extension of drill boom |
no |
|
Pressure |
8bar |
Electric Hydraulic pump station |
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Lubricating device of drill rod tail |
Forced feed lubricating can |
Electric motor |
45kW |
55kW |
Gas consumption for lubrication |
0.3 m3/min |
Impact- propelling- drill boom |
Variable axial piston pump |
|
Oil consumption for lubrication |
180-250g/h |
Turn around |
Gear pumps |
|
Pump |
1×CR3 |
Filter precision |
10μ |
|
Power |
1.5kW |
Hydraulic oil tank |
240L |
|
Pump Capacity |
3m3/h |
Hydraulic cooler |
Water cooler |
|
Chassis |
Working pressure |
380V |
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Diesel |
60kW@2800rpm |
Frequency |
50Hz |
|
4BT3.9-C80 |
Starting method |
Star - triangle |
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Tail gas clean-up |
Tail gas catalyst |
Cable reel |
1×K440 |
|
Transmission |
Closed-wheel drive traveling system |
Cable capacity of the reel |
100m |
80m |
Swinging angle |
The rear axle swings for ±6° |
Outer diameter of cable |
Φ28mm |
Φ32mm |
Tire |
300-15 |
Specifications of cable |
3×35+3G6+2×1.5 |
3×50+3G6+2×1.5 |
Steering mechanism |
±35° articulated steering |
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Parking brake |
Multi-plate brake |
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Emergency braking |
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Fuel tank |
60L |
Overall Dimension (including an optional auxiliary power station)
Change Sketch
Section Sketch