Integrated Hydraulic Crawler Mounted DTH Drilling Rig
JK830-2
- Borehole diameter: 138-235mm
- Drill rod length: 6m
- Drilling depth: 36m
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.
- 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.
| 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 | ||
- 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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