KJ422 tunneling drill rig

The KJ422 full hydraulic tunneling drill rig is suitable for tunnel boring operations with a section of 16-95 square meters. It can drill vertical, inclined and horizontal blast holes and bolt holes.

Product Description

The KJ422 full hydraulic tunneling drill rig is suitable for tunnel boring operations with a section of 16-95 square meters. It can drill vertical, inclined and horizontal blast holes and bolt holes.

The drill carriage adopts two sets of rectangular coordinate universal drill arms arranged symmetrically, and the propelling beam is turned over 360 degrees and automatically leveled to facilitate quick and convenient drilling positioning. The drill boom can also be used for lateral opening of stone gates and bolt drilling operations.

The arrangement of the drill rig ensures that the driver has a good view. The layout is balanced, and the powerful four-wheel drive articulated chassis ensures flexible, fast and safe driving in narrow lanes.

The high-frequency percussion rock drill uses stepped pistons to optimize the shock wave transmission efficiency, increase the drilling speed , reduce the consumption of drilling tools and improve the integrity of the equipment.

The spacious working space and a series of automatic functions help the driver to concentrate on drilling safely , quickly and accurately.

All maintenance parts are well protected and easy to access for maintenance.

Technical Parameters

Dimensions and weight
length 15000mm
width 2550mm
height 2400/3100 mm
weight 28000 kg
Driving speed, horizontal 10 km/h
Maximum climbing ability 14°
Security
Noise level <100dB(A)
Liftable safety ceiling Meet the requirements of anti-rolling and anti-rock falling
Drilling system
Rock drill 2×HC95LM/R38
Impact power 21KW
Impact flow 100-120L/min
Shock pressure 180-200bar
frequency 54-62Hz
Torque 764Nm
Aperture Φ42-102mm
Advance beam flip 360°
Propelling beam compensation stroke 1600mm
Drill boom
model K50
form Automatic leveling
Boom telescopic 2500mm
Working platform ( optional ) Max 300kg
Electric hydraulic pump station
Electric motor 2×75kw three-phase motor
Impact - propulsion - drill boom Axial variable piston pump
turn around Gear pump
Filtration accuracy 10μ
Hydraulic tank 400L
Hydraulic cooler Water cooler
Operating Voltage 380V
frequency 50Hz
Starting method Star - triangle
Cable reel 1×CRC1016
Reel capacity 100m
Feng Shui Road System
Air compressor 1×JN11
Displacement 1.55m /min
pressure 8bar
Shank tail lubrication device Electronic pulse lubrication pump
Lubrication air consumption 2×0.3m /min
Lubrication oil consumption 2×180-250g/h
Water pump 1×CR10-22
power 7.5kw
Pump displacement 10m /h
Chassis
diesel engine Cummins QSB3.9-C160 119KW/2200rpm
Exhaust gas purification Catalytic converter
Transmission system Torque converter + gearbox
Walking brake Wet brake in bridge
Parking brake Mechanical brake
Fuel tank 120L
Inquiry

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