

What Is a Rotary Drilling Rig Machine?
A rotary drilling rig machine is a powerful piece of equipment used for foundation piling in various construction projects such as bridges, high-rise buildings, highways, and subways. It drills deep holes into the ground to create strong and stable foundations.
This machine combines mechanical rotation and hydraulic pressure to penetrate soil and rock layers efficiently. Due to its high torque and strong stability, it has become one of the most common machines used in modern construction piling.
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Rotary Drilling Rig Parameter
| Dimensions (mm) | 7900*2260*3100 |
| Vehicle mass (kg) | 8000 |
| Wheelbase (mm) | 3150 |
| Wheelbase (mm) | Front 1400 After 1060 |
| Drilling depth (m) | 13 |
| Drilling diameter (mm) | 600-1600 |
| Rotation angle | 180 degree |
| Walking speed (km/h) | 50 |
| Gear pump model | CBJT2080 |
| Hydraulic system working pressure (Mpa) | 20-25 |
| Hydraulic system displacement (ml/r) | 80 |
| engine model | 4108 |
| Engine power (kW) | 88 |
Core Components and Working Principle
A rotary drilling rig is composed of several key components that ensure reliable and continuous operation:
- Main Winch and Power Head: Provide the lifting force and rotary motion for drilling.
- Kelly Bar and Drill Rod: Transmit torque and pressure to the drill bit.
- Hydraulic System: Controls the movement and stability of the drilling process.
- Crawler Chassis: Enables the rig to move easily on different terrains.
Working Principle:
The machine uses rotary torque to crush and remove soil or rock, while hydraulic systems control drilling speed and pressure. This allows operators to drill deep, accurate holes efficiently with minimal vibration.


Key Features of YG Rotary Drilling Rig Machine
The YG rotary drilling rig is designed to meet the needs of demanding construction sites. It combines performance, reliability, and user-friendly design to improve work efficiency.
Main Advantages:
- High Drilling Efficiency: Strong torque output allows fast and precise drilling.
- Stable Operation: Hydraulic drive system ensures smooth and consistent performance.
- Easy Mobility: Crawler base design makes transportation and site transfer easy.
- Customizable Design: Adjustable drilling depth and diameter according to project needs.
- Low Maintenance: Long service life and easy-to-replace parts reduce maintenance costs.
This advanced rotary piling machine helps contractors complete piling projects quickly and safely, even in complex ground conditions.


Applications of Rotary Drilling Rig Machines
YG’s rotary drilling equipment is widely used in civil engineering and infrastructure projects. Typical applications include:
- Bridge and Highway Construction – Drilling stable foundations for pillars and supports.
- Building Foundations – Creating deep piles for skyscrapers and commercial buildings.
- Subway and Tunnel Projects – Strengthening underground structures.
- Hydropower and Dams – Ground reinforcement for water-related infrastructure.
Thanks to its flexibility, the machine performs efficiently in various soil types, including sand, clay, gravel, and weathered rock. It is an ideal hydraulic rotary drilling rig for modern construction projects that demand both precision and productivity.


Why Choose YG Machinery as Your Drilling Rig Manufacturer
YG Machinery has years of experience in designing and manufacturing foundation drilling equipment. Our machines are trusted by contractors across Asia, Europe, South America, and Africa.
Reasons to Choose YG:
- Certified Quality: All products are CE and ISO certified for global use.
- OEM & ODM Service: Custom configurations for different soil conditions and project needs.
- Competitive Price: Direct factory supply ensures affordable cost and high value.
- Professional Support: 24/7 technical assistance, spare parts, and operator training.
As a professional core drilling machine supplier, YG continues to improve machine performance and provide reliable solutions for construction companies worldwide.
Get a Quote for Rotary Drilling Rig Machine
If you are planning a foundation or piling project, YG offers the perfect rotary drilling rig to match your requirements. Our team can help you select the right model based on soil type, drilling depth, and budget.
Contact YG Machinery today to get a customized solution and competitive price for your next piling project. With YG, you can achieve higher efficiency, better quality, and long-term reliability in every drilling operation.
WhatsApp/WeChat/Phone: 86 138 3715 9132










