KJ212 Underground Mining Drill Rigs and Tunneling Jumbo,Integrated Surface DTH Drilling Rig,China Drilling Rig Manufacturer

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KJ212 Underground Mining Drill Rigs and Tunneling Jumbo

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KJ212 Underground Mining Drill Rigs and Tunneling Jumbo can drill vertical, inclined and horizontal blast holes, designed exclusively for lower tunnel, with a passage section of 2.5m*1.5m, applicable to the tunnel with section of 3.5m*1.8m-5m*4.8m.

Its firm and reliable universal big boom 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 boom 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
Length	11160mm
Width	2000mm
Height	1465/1985mm
Weight	11000 kg
Travelling speed, level	10 km/h
Climbing capacity	20% (11°)
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	K 20
Form	Automatic leveling
Extension of drill boom	None
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	Cummins 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)

Turning Diagram

Coverage area

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