KJ210 Underground Mining Drill Rigs and Tunneling Jumbo is applicable to tunneling of hard rock mines in small and medium section roadways, with a roadway section of 15m2(width 4.2m× height 3.6m), satisfying any angle and location required by construction in this roadway.

The jumbo is equipped with a support frame, which stabilizes the jumbo through its front leg when the jumbo works, ensuring stable and reliable operation.

The hydraulic system of the jumbo has a perfect protective device. After the rock drilling, the rock driller will stop work automatically; a protective device of anti-clamping bit; the protective device of warning of such failures as low oil level, too high oil temperature, an d filter clogging.

Various control buttons and control valves are installed together for easy operation.

The drill arm of the rock driller can rise and fall steadily, with flexible rotation and accurate borehole positioning.

The entire jumbo is arranged reasonably, and all its repair and maintenance parts have been protected well, and its repair and maintenance are easy.

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.

A series of automatic functions can help the driver to concentrate their attention to safe, rapid and accurate drilling.

The reliable universal big arm has the best shape of section coverage, boosting the 360° overturn of the beam for rapid and convenient borehole positioning.

A diesel engine power station can be added to transfer the jumbo conveniently to another site. Modular design is applied for the diesel engine power station to make assembly and disassembly convenient.

Technical Parameters of KJ210 Underground Mining Drill Rigs and Tunneling Jumbo

Dimensions versus Weight		Drilling system
Length	8600mm	Rock drilling	HC50/R38
Width	1200mm	Impact power	13kW
Height	1780mm	Impact pressure	130bar
Weight	6200 kg	Maximum rotation pressure	150bar
Travelling speed, level	2km/h	Frequency	62Hz
Climbing capacity	20°	Torque	325Nm
Security		Aperture	Φ38-76mm
Noise level	＜100dB(A)	Rolling of the propelling beam	360°
Lifting safety ceiling	It conforms to the requirement to prevent rolling and falling rock.	Compensative travel of propelling beam	1200mm
Wind and water route system		Extension of drill boom	2100mm
Air Compressor	1×JN5	BoomModel	K10
Capacity	0.5m3/min
Pressure	8bar	Electric Hydraulic pump station
Lubricating device of drill rod tail	Forced feed lubricating can	Electric motor	45kW Three phase
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
ChassisModel	KJ210.6 Track Chassis	Frequency	50Hz
Transmission	Driving motor + reducer	Starting method	Star - triangle
Steady operating state car mode	Front leg vehicle stability	Specifications of cable	3×35+1×16
Vehicle stability assist	Hydraulic winch
Rotational power stations Diesel	YC2108

Overall Dimension (including an optional auxiliary power station)

Section Sketch