Hydraulic Longhole Drilling Rig, KSJ21 Manufacturer

Hydraulic Longhole Drilling Rig, KSJ21

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Dimensions (L×W×H): 6750×1600×2580/3000mm
Weight: Approx. 11000kg
Gradeability: 25%(14°)

KSJ21 hydraulic longhole drilling rig is primarily intended for long hole drilling and bolting operations, and it is suitable for underground mines and tunnels with a height range of 2.9m-5.2m and a width range of 2.8m-4.5m. This hydraulic longhole drilling rig is adaptable for a range of mining applications because of its 360-degree boom rotation capability, swing boom mechanism and guide rail configuration, which allow for 360-degree hole drilling and parallel hole drilling.

Structure Diagram

Technical Specifications

Dimensions and weight
Length			6750mm
Width			1600mm
Height			2580/3000mm
Weight			Approx. 11000kg
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×CRI10-22
Shank lubrication device	Electronic pulse lubrication pump		Power	4kW
Air consumption of lubrication	0.3m³/min		Capacity of water pump	6m³/h
Chassis
Diesel engine	Cummins QSB3.9-C80 60kW/2200rpm		Travelling braking	Wet type brake
Exhaust purification	Exhaust catalyzer		Parking braking	Mechanical brake
Drive system	Hydraulic torque converter gearbox		Fuel tank	30L
Drilling system
Rock drill		HC95LQM
Impact power		24kW
Impact flow		138L/min
Impact pressure		200bar
Impact frequency		58-57
Torque		955Nm
Feed extension		800mm
Electric hydraulic power unit
Motor		75kW three-phase motor
Impact/feed/positioning		Variable displacement axial piston pump
Rotation		Gear pump
Filter fineness		10µ
Hydraulic oil tank		240L
Hydraulic cooler		Air cooler
Working voltage		380V
Frequency		50Hz
Starting method		Star/delta

Features

The hydraulic longhole drilling rig is equipped with heavy-duty aluminum feed beam, which is supported by hydraulic cylinders to ensure the smooth drilling operation; The hydraulic guide cylinders are used to ensure that bores are drilled with near perfect straightness;
Trolley-type control panel offers easy operation and gives operator good visibility, and remote control is optional to improves the operation safety;
The articulated chassis adopts a hydraulic drive system, and 1.6m wide drilling rig is suitable for small to medium-sized tunnels;
Stepped piston is used in rock drill (drifter), which helps increase drilling speed, improve the efficiency of impact energy transfer from drill to rock, and reduce the consumption of drilling tools while maintaining the condition of the drill rig;
The hydraulic longhole drilling rig can realize economical drilling with drill depth of up to 35 meters, optional rod handling system (27 1 rods) allows for one-person operation;
The hydraulic long hole drilling rig adopts a multi-stage oil cylinder direct propulsion system that is standard for the high-power rock drill, ensuring stable thrust during deep hole drilling.
The drilling rig is equipped with the original power control valve block from Montabert, France, enabling it to feature automatic impact pressure adjustment, and anti-jamming function. This ensures smooth and accurate hole drilling during the operation.
Auto-stop device and bottom hole debris clearing function are equipped, automatically stopping pushing and impacting after finishing the drilling process.
This drilling equipment uses Kaishan brand energy-saving integrated direct-connected screw air compressor for smooth operation and easy maintenance.
It’s matched with Cummins diesel engine and four-wheel hydraulic drive walking system for stepless speed regulation.
A multi-disc wet brake and a spring parking brake system are adopted for dual insurance in drilling rig braking.
The hydraulic drilling rig features compact structure and flexible steering. In addition, its mining articulated chassis is equipped with wheel-side motors for articulated steering with an angle of ±36° and rear axle swing angle of ±6°.