A hydraulic core drilling machine is widely used in mineral exploration, geological survey, and engineering drilling. It is designed to drill deep holes and collect high-quality core samples without damage. With a full hydraulic system, it offers smooth operation, strong power, and better control during drilling.
Compared with traditional mechanical rigs, it is more flexible, easier to operate, and more efficient. It is especially suitable for complex geological conditions and deep drilling projects, making it an ideal choice for modern exploration work.

Hydraulic Core Drilling Rig Specifications
It comes with an optimized structure and advanced design to improve drilling performance. Below are typical specifications:
Model Comparison
| Parameter | 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 |
Power & Engine System
| Parameter | YGX-400 | YGX-600 | YGX-800 | YGX-1000 |
| Engine Brand | Yuchai | Yuchai | Yuchai | Cummins |
| Rated Power / Speed | 78 kW / 2400 r/min | 92 kW / 2400 r/min | 92 kW / 2400 r/min | 154 kW / 2400 r/min |
| Heat Dissipation Mode | Air cooling + Water cooling | Air cooling + Water cooling | Air cooling + Water cooling | Air cooling + Water cooling |
Drilling Performance
| Parameter | YGX-400 | YGX-600 | YGX-800 | YGX-1000 |
| 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 System
| Parameter | YGX-400 | YGX-600 | YGX-800 | YGX-1000 |
| Mud Pump Flow (L/min) | 30 – 90 | 30 – 90 | 90 – 180 | 90 – 180 |
| Mud Pump Pressure (MPa) | 4 – 7 | 4 – 7 | 4 – 7 | 4 – 7 |
Transport & Size
| Parameter | YGX-400 | YGX-600 | YGX-800 | YGX-1000 |
| Dimensions (L×W×H mm) | 4000 × 1900 × 1800 | 4000 × 2000 × 1800 | 5500 × 2100 × 2000 | 6000 × 2200 × 2400 |
| Weight (T) | 4.3 | 4.5 / 5.5 | 6.5 | 7.5 |
These parameters directly affect drilling efficiency, stability, and adaptability in different environments
For deep drilling and heavy-duty projects, we recommend YGX-800 or YGX-1000 for better performance and efficiency.


Diamond Coring Rig: Working Principle and Core Advantages
The diamond coring rig works through a full hydraulic transmission system. It drives the drill bit to rotate at high speed while applying steady pressure to penetrate the ground. During operation, drilling fluid (mud) is circulated to cool the bit, remove debris, and maintain hole stability.
At the same time, it adopts advanced thin-wall diamond core drilling technology. This allows the machine to cut rock efficiently with less resistance and produce complete, high-quality core samples. The drilling process is stable, with low vibration and high precision.
It also features a flexible layout, stepless speed control, and real-time pressure monitoring. These advantages improve safety, reduce drilling risks, and increase working efficiency. The crawler chassis with remote control makes movement easier and safer in complex terrains.
Hydraulic Core Drilling Rig: Step-by-Step Operation Process
The core drilling rig follows a clear and practical working process, ensuring safe and efficient drilling:
1. Preparation Work
- Level the ground to ensure stable operation
- Adjust the mast angle based on drilling requirements
- Prepare mud pit for circulation system
- Connect the mud pump and pipelines
2. Casing Installation
Before drilling, casing is installed into the rock layer. This prevents collapse in soft surface soil and ensures smooth drilling.
3. Drilling Process
- Connect the drill rods to the power head
- Start the mud pump and begin drilling
- Add drill rods step by step (usually 1.5 m each)
- Continue until reaching the target depth
4. Core Retrieval
After each drilling cycle, the inner tube is lifted using a wireline system. The core sample is then removed safely.
5. Core Storage and Recording
Collected core samples are arranged, labeled, and recorded carefully. This ensures accurate geological analysis.
6. Hole Closing
After drilling is complete, all drill rods are removed. The hole is sealed with cement, and the site is restored.
Applications of Hydraulic Core Drilling Machine
This equipment delivers strong flexibility and high efficiency across multiple industries. It supports mineral exploration for metal and non-metal resources, and engineers apply it in engineering geology, hydrological surveys, and oil and gas exploration.
For contractors, it is especially useful in deep drilling and complex formations where traditional rigs may fail. Its ability to provide accurate and complete core samples makes it essential for decision-making in exploration projects.

Why Choose YG Machinery and How to Buy a Hydraulic Core Drilling Machine
YG Machinery manufactures professional drilling equipment with strong technical expertise and global supply capability. We design hydraulic core drilling machines for stable performance, high efficiency, and deep drilling capacity, making them suitable for demanding projects.
We build each machine with a durable structure to ensure long service life, easy operation, and low maintenance costs. With fast global delivery and reliable technical support, YG Machinery has become a trusted partner for customers worldwide.
Beyond core drilling machines, we also offer water well drilling rigs, anchor drilling rigs, rotary drilling rigs, and rock drilling machines—helping you source a complete drilling solution from a single supplier.
Key Advantages:
✔Full hydraulic system for stable performance
✔High drilling efficiency and deep drilling capacity
✔Durable structure for long-term use
✔Easy operation and low maintenance cost
✔Fast global delivery and support
How to Buy from YG Machinery:
1. Send Inquiry – Share your project requirements
2. Solution Recommendation – Get the best model suggestion
3. Quotation – Receive detailed price and specifications
4. Production & Testing – Ensure machine quality
5. Shipping – Fast delivery worldwide
6. After-Sales Support – Technical guidance and spare parts
This process ensures a smooth and reliable purchasing experience.


FAQ: Hydraulic Core Drilling Machine
1. What drilling depth should I choose for my project?
It depends on your geological conditions and project requirements. Deeper projects need higher-capacity rigs.
2. Is the machine suitable for hard rock drilling?
Yes, it performs very well in hard rock conditions with diamond drilling technology.
3. How many workers are needed to operate it?
Usually, 2–4 operators are enough, depending on project size.
4. Can the machine work in remote areas?
Yes, the crawler chassis and diesel power make it suitable for remote locations.
5. What is the maintenance requirement?
You should regularly inspect the hydraulic system and keep all moving parts properly lubricated. Clean key components after each use and check for leaks, wear, or loose connections to ensure stable performance and extend machine life.
6. Can a core drilling rig be equipped with a fully automatic SPT system?
Yes, you can integrate a fully automatic SPT (Standard Penetration Test) system with a core drilling rig. This configuration increases testing efficiency, improves consistency of results, and reduces the need for manual operation during soil investigation.
7. Can the rig be customized?
Yes, YG Machinery supports customization for different drilling needs.
8. What safety features does it have?
It includes pressure protection, a stable structure, and remote-control operation for enhanced safety.


Contact YG Machinery Today for a Diamond Drill Rig for Sale
If you are looking for a reliable diamond drill rig for sale or a high-performance hydraulic core drilling machine, YG Machinery is your trusted partner. With advanced technology and strong manufacturing capability, we provide efficient, durable, and cost-effective drilling solutions for various applications.
Contact us today to get expert advice and find the best diamond drill rig for sale and drilling equipment for your project.









