Crawler Mounted Hydraulic DTH Drilling Rig (with Auxiliary Rod Changer)
JK595-5A
- Borehole diameter: 90-165mm
- Borehole depth: 50m
- Walking speed: 2.2km/h, 3.6km/h
Crawler-mounted hydraulic DTH drilling rig is equipped with auxiliary rod changer, which enables one-person operation. With a power unit composed of diesel engines and hydraulic oil pumps, the rig is efficient and energy-saving. A hydraulic motor facilitates drilling, feeding, lifting, walking and hydraulic cylinder positioning.
Features
Equipped with auxiliary rod changer, the rig can be operated by one operator.
Applications
The surface drilling rig is mainly used for hydro-power engineering, open pit mining, road construction and blasting operation of national defense engineering.
| Model | JK595-5A |
| Borehole diameter | 90-165mm |
| Drill rod length | 50m |
| Drill rod carousel | 5×3m |
| Applicable rock hardness | f=6-20 |
| Working air pressure | 1.2-2.5MPa |
| Air consumption | 11-21m³/min |
| Feeding stroke | 4138mm |
| Max. horizontal drilling height | 3370mm |
| Rotation rate | 0-150rpm |
| Rotation torque | 3300N·m |
| Walking speed | 2.2km/h, 3.6km/h |
| Grade ability | 24° |
| Power | Weichai 73.5kW |
| Dust collector | Hydraulic dry dust collector |
| Wet dust collector (optional) | |
| Dimension (L×W×H) | 7000×2400×2700mm (2200mm without drill rod carousel) |
| Weight | 7900 kg |
- Rotation unit
- The enhanced gearbox and two motors enable adjustment of two rotation speeds.
- Damper offers smooth and stable operation.
- It reduces the possibility of drill bits getting stuck in unconsolidated formations and increases the success rate of drilling holes.
- Imported rotary seals ensure reliable sealing performance and long service life
- Power system
- Imported hydraulic pumps and valves feature pressure resistance, large output, high quality and long service life.
- Weichai's turbocharged engine with power up to 73.5 kW provides strong driving forces, and it is easy to maintain.
- Two-stage air filter ensures intake of clean air, safety and reliability.
- Integrated oil-water cooler facilitates operation of motors and the hydraulic system in high heat environments.
- Maintenance-free feed mechanism
- Hydraulic-mechanical lock system supports stable torque output of hydraulic motors while avoiding hydraulic leak and sliding.
- Control panel
- 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.
- Maintenance-free undercarriage
- Extended undercarriage lowers the center of gravity and increases stability.
- Large-torque motors, along with a two-speed traveling system, provide strong driving forces that offer robust climbing capability and high speed which saves travelling time.
- 4 leveling jacks are designed to angle to 10 degrees left and right to support drilling work in rough terrains.
- There’s no need to lubricate wheels and tracks with oil.
- Track guards are equipped to prevent track from derailing.
- Two carousels and a standing control platform are equipped.
- Feeding system
- Enhanced feeding system with high-strength and wear-resistant guiderails delivers stable performance in feeding, lifting and compensation.
- The feeding system and the drilling arm are sturdy and stable, particularly designed for drilling big photovoltaic holes.
- Extended drilling arm enables multi-angle drilling and covers a fan-shaped area 20% larger than those of similar drilling rigs.
- Inspect and survey the site before blast hole drilling;
- Analyze the rock statistics and geological structure to design the effective and safe drilling method;
- Design the drilling method, implement drilling plan and detonate the explosives;
- Clean up the debris just like in the open mine blasting process.
What are the characteristics of the blasthole drilling rig?
It is applicable to a wide range of rocks (hardness from 6 to 20).
The high-strength rotary table provides solid support for large torque and bit load.
Which is suitable for open pit mining, crawler-mounted drilling rig or tuck-mounted drilling rig?
Though truck-mounted rig has the advantages of high travelling speed, it is not capable of handling complex terrains and facilitating heavy-duty drilling jobs. And it requires multiple engines and regular maintenance of tyres.
Meanwhile, crawler-mounted rig addresses all these challenges. Therefore, crawler-mounted drilling rig is more suitable for open pit mining.
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