Hydraulic Tunneling Drilling Rig, KJ311 Manufacturer

Hydraulic Tunneling Drilling Rig, KJ311

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Face drilling rig with telescopic feed beam

Dimensions (L×W×H): 11300×1750×2000/3000mm
Weight: Approx.12000kg
Maximum gradeability: 25%(14°)
Range of cross section: 12-35m²

This hydraulic tunneling drilling rig features a telescopic feed beam, it is suitable for drilling hard rock mines with cross sections of 12-35m². The drilling rig can also realize rock bolting, it is able to drill bolt holes of 2.2m in depth at 4m high tunnels.

Video Show

Structure Diagram

Technical Specifications

Dimensions and weight
Length			11300mm
Width			1750mm
Height			2000/3000mm
Weight			Approx.12000kg
Tramming speed on flat ground			10km/h
Maximum gradeability			25%(14°)
Safety protection
Noise level			< 100dB(A)
Lifting safety roof			Meet the requirements of FOPS and ROPS
Air and water system
Air compressor	1×JN4		Oil consumption of lubrication			180-250g/h
Capacity of air compressor	0.5m³/min
Pressure	6-8bar		Water pump			1×CR3		1×CR5
Shank lubrication device	Electronic pulse lubrication pump		Power			1.5kW		5.5kW
Air consumption of lubrication	0.3m³/min		Capacity of water pump			3m³/h		6m³/h
Chassis
Diesel engine	Cummins QSB3.9-C80-31 60kW, 2200rpm		Tires			11.00-20
Exhaust purification	Exhaust catalyzer		Steering mechanism			Articulated steering angle: ±40°
Drive system	Closed hydraulic system for four-wheel driving		Travelling braking			Two-circuit hydraulic brake
Swing angle	Swing of rear axle: ±10°		Parking braking			Wet multi-disc brake of reducer
			Fuel tank			60L
Drilling system
Rock drill (drifter)		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				180-200bar
Maximum rotary pressure		150bar	150bar				210bar
Impact frequency		62Hz	47Hz				62Hz
Torque		325Nm	780Nm				764Nm
Hole diameter		Ø32-76mm	Ø42-102mm				Ø42-102mm
Beam rotation		360°
Feed extension		1100mm
Model of drill boom		K26F
Form of drill boom		Automatic parallelism
Boom extension		1200mm
Electric hydraulic power unit
Motor		45kW		55kW			75kW
Impact/Feed/Positioning		Variable displacement axial piston pump
Rotation		Gear pump
Filter fineness		10µ
Hydraulic oil tank		240L
Hydraulic cooler		Water cooler
Working voltage		380V
Frequency		50Hz
Starting method		Star/delta
Cable reel		1×F440
Length of reel cabling		100m			80m
Cable specifications		3×35 3G6			3×50 3G6