A full hydraulic core drilling machine is specialized equipment used for geological exploration, mineral resource assessment, hydrological investigation and geotechnical engineering. It extracts intact rock core samples from underground to provide accurate data about subsurface conditions. HQ wireline coring is a widely used method for medium-depth exploration projects that balances efficiency and sample quality. An HQ core sample drill rig uses a thin-walled diamond drill bit and a wireline retrieval system to extract core samples without pulling the entire drill string out of the hole. This significantly improves drilling efficiency and core recovery rate compared to traditional coring methods. YG offers a complete line of reliable core drilling equipment, with models ranging from the compact YGX-400 to the heavy-duty YGX-1000 to suit different project requirements.
In addition to HQ drill rigs, YG also sells PQ core sample drill rigs, NQ core sample drill rigs, and SPT machines.
HQ Core Sample Drill 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 |
Common Wireline Coring Tool Specifications
| Specifications | Drill hole diameter | drill pipe diameter | core diameter | typical drilling depth |
| PQ | 122.6mm | 114.3mm | 85mm | 300-500m |
| HQ | 96mm | 89mm | 63.5mm | 500-800m |
| NQ | 75.5mm | 71mm | 47.6mm | 700-1000m |
| BQ | 60mm | 55.6mm | 36.5mm | 800-1200m |
What An HQ Core Sample Drill Rig Delivers For Your Projects
- Enhanced Geological Data Accuracy: The 95mm core diameter provides significantly more subsurface information per sample. This allows for more precise ore grade analysis, reliable mineral resource estimation, and accurate deposit characterization—data that forms the foundation of critical mining and infrastructure investment decisions.
- Superior Hard Rock Drilling Efficiency: Equipped with a high-torque rotary head and paired with premium wear-resistant diamond bits, our core drilling equipment delivers up to 30% higher penetration rates in challenging formations such as granite and quartzite. This means your teams spend less time drilling each meter and more time analyzing results and advancing projects.
- Lower Total Operational Costs: While our equipment offers competitive upfront pricing, the greatest savings come from improved operational efficiency. The wireline coring system eliminates the need to trip the entire drill string for core retrieval, cutting non-drilling time by 50-70% and significantly reducing drilling fluid consumption and labor costs.
- Unmatched Project Versatility: With an adjustable drilling angle range of 0-90° and full compatibility with BQ, NQ, HQ and PQ drill rod sizes, a single rig can handle a wide range of project types. From vertical mineral exploration to inclined geotechnical investigations, this flexibility maximizes your equipment utilization rate and reduces the need for multiple specialized machines.
- Minimized Unplanned Downtime: Our modular design allows for quick and easy component replacement, reducing repair time. The hydraulic system uses industry-standard parts, and our global parts network ensures fast delivery of critical components even to remote project sites, keeping your rig operational and your projects on schedule.
Highlights of the HQ Core Sample Drill Rig
Optimized Whole Machine Structure: Features high rotation speed and high penetration rate for maximum productivity. The tracked chassis supports both remote control and manual operation for safe and convenient handling in difficult terrain. The telescopic mast design eliminates the need for a separate drilling tower, making transportation and assembly extremely fast.
Full Hydraulic Transmission System: Offers flexible layout, lightweight and excellent maneuverability. The system provides stepless speed regulation, allowing operators to adjust drilling parameters in real time to match different rock formations. The drilling process is stable with minimal vibration, and real-time pressure monitoring with overload protection ensures maximum safety on site.
Thin-Wall Diamond Wireline Coring Technology: The drill string system is designed to be full, rigid and straight, resulting in excellent borehole deviation control. Thin-walled drill bits reduce torque resistance and increase cutting speed for faster penetration. This technology delivers large core diameter, high core recovery rate, fewer accidents and enhanced overall safety.
Why Choose YG For Your Hydraulic Core Drilling Needs
When you purchase a hydraulic core exploration drilling rig from YG, you get more than just high-quality equipment. We provide comprehensive support to ensure your success:
- Factory-Direct Pricing: No middlemen, so you get the best possible price for premium equipment.
- Customization Flexibility: We can modify our hydraulic core exploration drilling rigs to meet your specific project requirements and geological conditions.
- Warranty Coverage: All our HQ core sample drill rig comes with comprehensive warranty coverage for peace of mind.
- Global Parts Inventory: We maintain a global inventory of spare parts to ensure fast delivery and minimal downtime.
- Comprehensive Technical Support: We offer both remote assistance and on-site service options to help you resolve any issues quickly and efficiently.
If you are interested in our hydraulic core drilling machines, please contact YG’s sales team for personalized quotes tailored to your specific drilling needs and budget constraints.
