JK690
Surface drilling equipment
- Borehole diameter: 90-160mm
- Drill rod length: 3m
- Walking speed: 2.5km/h, 3.5km/h
- Optional: Dual-drive high-low speed rotary system, Automatic rod lubrication system, Wet dust collector
Integrated Hydraulic Crawler Mounted DTH Drilling Rig
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JK690 Integrated Hydraulic DTH Drilling Rig
The integrated DTH drilling rig brings you the experience of automation and high efficiency. The integrated design of the drilling rig and the air compressor, along with a high-performance hydraulic dust collector, makes it a suitable choice for green and efficient mining job.
Applications
The integrated drilling rig is mainly applied for hydro-power engineering, open-pit mining, road construction and blasting operation of national defense engineering.
Features
- The engine has been upgraded with larger power and high-strength materials to resist inertia force caused by high-speed rotation and ensure stability of motors.
- The rig has adopted a more efficient electric structure and operational mode to reduce power loss and increase energy efficiency.
- The pressure and the maximum output of air compressor have been optimized to improve work efficiency.
Technical Specifications
| Model | JK690 | ||
| Engine | Model | WP7G300E300 | |
| Type | Water-cooled 6-cylinder EFI diesel engine | ||
| Rated power | kW/rpm | 220/2300 | |
| Fuel tank capacity | L | 400 | |
| Air compressor | Brand | Atlas Copco | |
| Working pressure | bar | 20 | |
| Max. free air delivery (FAD) | m³/min | 18.5 | |
| Drill rod changer | Drilling diameter | mm | Ø90-Ø160 |
| Rod length | m | 3 | |
| Rod diameter | mm | Ø76/Ø89 | |
| Rod capacity | 6 1 | ||
| Drilling depth | m | 21 | |
| Rotary motor | Rotation rate | rpm | 0-140 |
| Max. rotation torque | Nm | 3300 | |
| Feeding method | Motor-driven planetary gearbox chain | ||
| Feeding force | KN | 12 | |
| Lifting force | KN | 21 | |
| Feeding stroke | mm | 3990 | |
| Feed extension | mm | 1100 | |
| Undercarriage | Track width | mm | 300 |
| Ground clearance | mm | 370 | |
| Track oscillation | ° | ±10° | |
| Walking speed | km/h | 2.5 (low speed) 3.5 (high speed) | |
| Grade ability | ° | 27° | |
| General | Weight | kg | 14000 |
| Length | mm | 8750 | |
| Width | mm | 2900 (with dust collector) | |
| Height | mm | 3350 | |
| Dust collector | Hydraulic dry dust collector (optional: wet dust collector) | ||
Main Components
- Rotation unit
- The rotation unit delivers large torque and high reduction ratio which contribute to high transmission efficiency, stable operation and low failure rates. The reliable performance lowers maintenance costs.
- It reduces the possibility of drill bits getting stuck in unconsolidated formation and increases the success rate of drilling holes.
- High molecular liner plates are wear-resistant and durable, with no need of oiling.
- Manganese steel-framed guide rail is added to protect the mast from wear.
- Optional dual-drive high-low speed rotation system is available.
- Automatic rod changer
- It is simple to operate the automatic rod changer to control rod storage, rod loading, unloading and movement of machine clamp just with one joystick.
- Adopting a clamping design, the changer can easily unload the rod and increase work efficiency.
- Operation system
- All the operations of the rig can be realized by the integrated control system.
- The control system enables rapid feeding and lifting. The feeding force is adjustable based on different environments, which reduces drilling time and increases efficiency.
- 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.
- 4 leveling jacks are designed to angle to 10 degrees left and right to support drilling work in rough terrains. It supports high and low speed shifts to realize flexible movement between drilling sites.
- Maintenance-fee feeding system
- Hydraulic-mechanical lock system supports stable torque output of hydraulic motors while avoiding hydraulic leak and sliding.
- Dust collecting system
- The hydraulic dust collector with a sliding cover that collects dust delivers stable and efficient performance, which extends the rig’s service life and ensures a clean working environment.
- Power system
- High-power turbocharged direct injection engine with water cooling function delivers reliable performance and is energy-saving.
- Two-stage air filter ensures intake of clean air and reduces failure rates of the engine.
- Imported hydraulic pumps feature pressure resistance, large output, high quality and long service life.
- Air compressor
- Atlas Copco air compressor with working pressure of 20 bar and air delivery of 18.5 m3/min demonstrates reliable performance to support drilling through a variety of rocks.
What construction equipment is used for rock drilling?
In terms of quarrying machines, rock drilling rigs include surface top hammer drilling rigs, rotary blasthole drill rigs, and surface DTH drill rigs which are the most important one.
What are the advantages of deep-hole drilling rigs?
Deep hole drilling rigs are applicable to drilling work in a variety of formations. Driving drill bits directly through drilling rods is more energy efficient, with less energy loss, and offers stable speed and high drilling precision. Deep-hole drilling rigs are also easy to maintain.
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