The crawler-mounted DTH drilling rig is well designed to drill through rocks easily, efficiently and at a low cost. As a star product among separated DTH drilling rig, it has sold thousands of units worldwide.
The drilling rig is powered by a power unit composed of diesel engine and hydraulic oil pump, with a hydraulic motor facilitating drilling, feeding, lifting, walking and hydraulic cylinder positioning. During operation, compressed air is utilized only by the DTH hammer, which reduces air compressor’s output by 30% to 50% compared to pneumatic drill rigs and lowers energy consumption (fuel oil or electricity) by 40% to 50%.
Applications
The drilling rig is widely used for hydro-power engineering, open pit mining, road construction, drilling and blasting operation of national defense engineering.
| Model | JK590BC-2A |
| Borehole diameter | 90-165mm |
| Borehole depth | 50m |
| Applicable rock hardness | f=6-20 |
| Working air pressure | 1.2-2.5MPa |
| Air consumption | 11-21m³/min |
| Feeding stroke | 4138mm |
| Rod-changing length | 3m |
| Max. horizontal drilling height | 3370mm |
| Rotation rate | 0-80rpm |
| Rotation torque | 4000Nm/2000N.m |
| Walking speed | 2km/h, 3km/h |
| Grade ability | 24° |
| Power | Yuchai 70kW/Cummins 74kW (optional) |
| Electric motor 55kW | |
| Dust collector (optional) | Hydraulic dry dust collector |
| Wet dust collector | |
| Dimension (L×W×H) | 7000×2200×2100mm |
| Weight | 7200kg |
We provide customized drilling solutions tailored to your needs.
The hydraulic drilling rig is mainly composed of power unit, hydraulic system, crawler travelling unit, hydraulic rock drill and drilling arm.
Rock drilling equipment are widely used in pre-drilling hard rock, micro piling, geothermal, solar, foundation, deep well and geotechnical drilling applications.
Surface drilling rigs are designed to improve productivity and minimize the fuel consumption and operational costs. The hydraulic system facilitates beam movement, drilling and feeding. This type of drilling rig is durable and sturdy and it consumes less energy to operate for a long time.
Mines, quarries, drilling-and-blasting operations, etc.
A separated DTH drilling rig does not include an integrated air compressor and often requires an external air compressor like a tow-behind air compressor.
An integrated DTH drilling rig typically includes an onboard air compressor, integrated power system and integrated drilling system.
You can choose the external air compressor based on drill hole diameter, rock layer conditions and drilling processes. The separated DTH drilling rig can also be connected with an existing portable air compressor.
For DTH drilling systems, compressed air not only powers the DTH hammer, but also removes cuttings and cleans the drill hole. Insufficient compressed air supply will affect drilling by slowing down DTH hammer performance and cuttings evacuation.
You can choose an air compressor model based on required working pressure and air flow, which can be determined by hole diameter, DTH hammer specifications, drilling depth and penetration rate.
You should also take into account budget and operation costs when choosing an air compressor.
For example, you can choose a portable air compressor depending on hole size, rock layers and other actual drilling conditions.
When choosing a DTH drill bit, you should consider how well the bit is matched with the rest of the drilling system, including drilling rig, air compressor, drill string, drill pipe and DTH hammer.
For example, when deciding the drill bit size, you should take into consideration the hole diameter. However, you should also consider how the bit size is matched with hammer size, bit shank, drill pipe diameter, thread connection, compressed air pressure and flow rate, drilling rig rotation torque, feed force and lifting force.
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