Integrated Hydraulic Crawler Mounted DTH Drilling Rig Manufacturer

Integrated Hydraulic Crawler Mounted DTH Drilling Rig

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JK830-2

Surface drilling equipment

Borehole diameter: 138-235mm

Drill rod length: 6m

Drilling depth: 36m

JK830-2 Integrated Hydraulic DTH Drilling Rig

JK830 integrated hydraulic DTH drilling rig is designed to drill large bore holes (138-235 mm). It features automation, high work efficiency, reliability and simple operation.

The built-in Atlas Copco air compressor ensures intake of clean air. Equipped with FOPS-certified cabin, the rig offers comfortable driving experience. The automatic rod changer increases work efficiency while the heavy-duty undercarriage with wide tracks ensures both maneuverability and safety. The hydraulic dust collecting system meets the environmental protection regulations and provides a reliable solution to realize the modern green mining. The rig enables all the operations and control over the rig with a single control panel.

Designed to enable safer, more efficient, and lower cost operations while reducing downtime, the system can be configured with any number of HMIs.

The JK830 interfaces with key rig components using remote I/O mounted on the drawworks, top drive, mud pump and drill floor. All controls are enabled from the cabin through a combination of touchscreen, discrete operator and simple joystick controls.

JK Drilling is ready to work with you to tailor products that are outstanding in terms of performance, efficiency and safety while maximizing equipment service life.

Experienced technical and service team members are available 24/7 to ensure safe and efficient drilling operations.

Applications
The integrated drilling rig is mainly applied for hydro-power engineering, open pit mining, road construction and blasting operation of national defense engineering.

Optional
Optional stick-slip mitigation device: used to reduce stick-slip vibration during rotary drilling. The device offers a number of advantages that allow customers to drill more efficiently for a long period of time.

Features

Automatic feeding and drilling capability enables operation by one person.
Rexroth’s and Eaton’s hydraulic control valves deliver large torque output to satisfy the needs of large borehole diameters.
The powerful diesel engine provides strong impulsive force, feeding force and rotation speed that can be flexibly adjusted based on the hardness of rocks.
Equipped with Atlas Copco two-stage air compressors, the rig features high drilling efficiency and quality.

Technical Specifications

Model		JK830-2
General	Weight	kg	25000
	Length	mm	12300
	Width	mm	3200
	Height	mm	3500
Undercarriage	Track length	mm	3646
	Ground contact length	mm	2912
	Track center distance	mm	2349(total width 2749)
	Track width	mm	400
	Ground clearance	mm	≥400
	Track oscillation	°	±10°
	Walking motor	Eaton
	Walking speed	Km/h	1.6(low), 3(high)
	Max. tractive force	KN	170
	Grade ability	°	20°
Engine	Model	QSZ13-C450-30 (Cummins)
	Type	Water-cooled 6-cylinder EFI diesel engine
	Rated power	Kw/rpm	335/2100
	Fuel tank capacity	L	1015
Hydraulic pump/valve	Main pump	Variable load-sensing piston pump
	Main valve	Load-sensing valve
	Manufacturer	Rexroth
Air compressor	Model	Atlas Copco
	Type	Dual stage rotary screw air compressor
	Working pressure	bar	24
	Max. free air delivery (FAD)	m³/min	30
Rotary motor	Hydraulic rotation unit	Dual motors (Eaton)
	Rotation rate	rpm	0-120
	Max. rotation torque	N.m	3900
	Feeding method	Motor-driven planetary gearbox chain
	Fast feeding rate	m/min	45
	Feeding rate	m/min	0-11
	Max. lifting rate	m/min	11
	Feeding force	kN	0-40 (adjustable)
	Lifting force	kN	40
Feeding boom	Length	mm	10320
	Feeding stroke	mm	6730
	Feed extension	mm	1600
	Swing angle	°	Left 95° Right 35°
Drilling arm	Type	mm	Telescopic single straight boom (length 760mm)
	Tilt angle	°	40°(up), 15°(down)
	Swing angle	°	Left (cabin side)9°, Right 31°
Drill rod exchanger	Rod diameter	mm	102/114
	Rod length	m	6
	Drilling diameter	mm	138-235
	Drilling depth	m	36
	Rod capacity	pc	5 1
	Hammer specs		5'/ 6'/ 7'/ 8'
Dust collector	Filter element		20
	Collecting method		Hydraulic dust collection system
	Dust cover		Float up and down

Main Components

Power system

High-power turbocharged direct injection engine with water cooling function delivers reliable performance and is energy-saving.

The three-stage air filter system ensures intake of clean air and greatly reduces the engine failure rate.
Air compressor

Atlas Copco two-stage air compressor with strong air output is reliable and powerful. It is applicable to rock formations of various hardness and offers a high penetration rate with ease.
Control system

The FOPS-certified enclosed cabin is equipped with an air conditioner, which meets the labor protection standards of the US and Europe.

The dashboard clearly displays the operational parameters, prompts and warning in real time for convenient monitoring and precise hole drilling.
Rotation unit system

The rotation unit is equipped with a floating joint which can reduce vibration as well as protect rod threads when loading and unloading drill rods. It's easy to adjust and has a long service life.
Automatic rod changer

It is simple to operate the automatic rod changer to control rod storage, rod loading, unloading and movement of machine clamp.

Adopting a clamping design, the changer can easily unload the rod and increase work efficiency.

With one button, the system can automatically change rods.
Undercarriage

The undercarriage adopts a robust design of four wheels and one track. Widened tracks enable smooth travelling and strong climbing capability to support heavy-duty drilling jobs.

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