

A hydraulic core drilling rig is a specialized piece of drilling equipment designed for high-precision core sample extraction, deep-hole drilling, and subsurface formation investigation. YG crawler hydraulic core drilling rig serves as the foundational equipment for mineral resource exploration, geotechnical engineering survey, hydrogeological drilling, and geological disaster assessment, enabling you to accurately acquire intact rock core samples to support subsurface data analysis and project decision-making. We engineer the YGX series crawler hydraulic core drilling rig to meet the diverse demands of field drilling operations. We tailor a full lineup of models to different drilling depth requirements and working conditions, and they deliver stable performance even in complex field environments.
Hydraulic Core Drilling Rig Parameter:
| Model | YGX-400 | YGX-600 | YGX-800 | YGX-1000 |
| Drilling Depth(M) | 180-400-500 | 200-600-650 | 400-800-1000 | 500-1000-1100 |
| Rated pressure(MPA) | 21 | 21 | 25 | 28 |
| Rated Flow(L/min) | 168 | 192 | 260 | 300 |
| Heat Dissipation Mode | Air cooling+water cooling | |||
| Engine Brand | Yuchai | Yuchai | Yuchai | Cummins |
| Rated power/speed | 78kW/ 2400r/min | 92kW/ 2400r/min | 92kW/ 2400r/min | 154kW/2400r/min |
| Drilling Angle(°) | 0-90 | 45-90 | 45-90 | 45-90 |
| Lifting Force(T) | 12 | 16 | 24 | 30 |
| Feed Force(T) | 6 | 8 | 12 | 15 |
| Hydraulic Mud pump flow | 30-90(L/min) | 30-90(L/min) | 90-180(L/min) | 90-180(L/min) |
| Hydraulic Mud pump power | 4-7(MPA) | 4-7(MPA) | 4-7(MPA) | 4-7(MPA) |
| Dimension | 4000*1900*1800mm | 4000*2000*1800mm | 5500*2100*2000mm | 6000*2200*2400mm |
| Weight | 4.3T | 4.5/5.5T | 6.5T | 7.5T |
Hydraulic Core Drilling Rig Working Principle:

This series of equipment adopts a full hydraulic drive system, which transmits power through the hydraulic circuit to drive the rotation of the drill string and control the feeding and lifting actions of the drilling tower. During operation, the drill bit at the end of the drill string cuts the rock formation under the dual action of rotational torque and axial feeding force, while the matched hydraulic mud pump circulates drilling fluid to cool the drill bit, carry rock debris out of the borehole, and maintain borehole wall stability. The intact rock core is retained in the core barrel inside the drill string and is lifted to the surface through the lifting system for sampling and analysis. The crawler hydraulic core drilling rig supports adjustable drilling angles to adapt to different survey requirements, from vertical drilling to inclined drilling operations.
Hydraulic Core Drilling Rig Application:
- Mineral Resource Exploration: For ore body survey, reserve verification and grade analysis of metal/non-metal deposits, supporting 100-1100m deep core sampling for mine design and feasibility study.
- Geotechnical Engineering Survey: For foundation investigation of buildings, highways, railways, bridges, and water conservancy projects, providing core geological data for foundation and construction design.
- Hydrogeological Drilling & Water Well Engineering: For groundwater resource investigation, domestic/irrigation water well drilling, and groundwater monitoring hole construction for water source development.
- Geological Disaster Prevention & Control: For landslide, collapse, and debris flow disaster investigation, anchor cable and grouting hole drilling for slope reinforcement and disaster treatment.
- Mining Production Geological Engineering: For mine tunnel advance geological forecasting, goaf detection, ore body supplementary exploration, and rock mass stability investigation for safe mining.
Key Features of YG Hydraulic Core Drilling Rig:
- Exceptionally intact core samples: We utilize the advanced double-tube wireline coring process combined with standard NTW drill rods. This technology significantly reduces core disturbance and breakage during extraction, producing highly complete core samples that provide accurate and reliable geological data.
- High torque and stable high-speed output: Equipped with premium Yuchai and Cummins engines, our rigs deliver powerful, consistent rotational force to penetrate various rock formations efficiently. The precision hydraulic system ensures smooth power transmission and stable operation across different drilling conditions.
- Full Hydraulic Precise Drive System: The YG hydraulic core drilling rig adopts full hydraulic transmission, with 21-28MPa rated pressure and 168-300L/min flow. It achieves stepless control of drilling torque and force, ensuring core integrity and adapting to diverse rock formations.
- Multi-Angle Stable Drilling Tower: Ground-contact tower design supports flexible angle adjustment: YGX-400 covers 0-90° full-angle drilling, other models support 45-90° adjustment, dispersing reaction force for stable high-load operation.
- High-Rigidity Anti-Overload Structure: Integrated high-rigidity frame with 12-30T lifting force and 6-15T feeding force, easily handling deep hole drilling and complex working conditions, adapting to long-term heavy-load field operation.


FAQ About Hydraulic Core Drilling Equipment
A: Our YGX series rig adapts to most common formations in exploration and engineering projects, including clay, sandy soil, weathered rock, medium-hard sedimentary rock, and hard igneous rock like granite and basalt. With appropriate drill bit matching and drilling parameter adjustment, it can also handle fractured formations and complex interbedded layers.
A: Yes, we support custom development of smaller drilling rigs to meet your specific project requirements, including targeted adjustments to drilling depth, rig dimensions, weight, power configuration, and drilling angle range. We can also optimize the design for special working conditions to fully meet your actual construction scenarios.
A: YGX series rigs use diamond wireline coring. This method allows for rapid and efficient core recovery without lifting the entire drill string, significantly reducing tripping time and improving drilling efficiency, especially suitable for medium- and deep-hole operations. It effectively ensures the integrity of core samples, minimizing core breakage and formation disturbance, and achieves stable and high core recovery rates in hard rock, fractured formations, and deep-hole exploration projects. Furthermore, depending on your project needs, a single-action double-tube coring tool can be equipped for shallow-hole and special formation sampling.
A: The rig features a fully integrated design; no large hoisting equipment is needed for on-site assembly. It only requires a flat, solid site that fits the rig’s body dimensions, plus matched drill pipes, core barrels, diamond drill bits, and diesel fuel for operation. It can be transported by standard flatbed trucks for long-distance transfer.


Fully Hydraulic Core Drilling Rig Price- YG Machinery
A high-performance hydraulic core drilling rig is the core guarantee for efficient and accurate core sampling and subsurface investigation work.YGX series integrates mature full hydraulic technology, reliable power configuration, and field-adapted design, providing stable and efficient drilling solutions for various exploration and engineering projects. If you want to learn more about the fully hydraulic core drilling rig price and detailed configuration for your project, contact the YG team today. We will tailor a professional solution to your specific working conditions.

