
Finding reliable Rotary Drilling Equipment can feel like a challenge. Yet, modern construction demands fast, strong foundations. This equipment creates deep, precise holes for piles. Bridges, high-rises, and industrial plants all depend on it. Without this technology, projects would take longer and cost far more. Our guide explains everything about rotary drilling rigs. You will discover key features, real benefits, and why YG Machinery stands out. These machines handle various soil types with ease. They also reduce noise in urban areas. So, you get reliable performance in less time. Read on to boost your next project’s success.
Key Parameters of the Rotary Drilling Rig
The table below shows the main specifications of our popular rotary drilling rig. Use these details to see if it fits your project.
| Overall Dimensions (mm) | 7900×2260×3100 |
| Vehicle Mass (kg) | 8000 |
| Wheelbase (mm) | 3150 |
| Wheel Tread (mm) | Front 1400, Rear 1060 |
| Max Drilling Depth (m) | 13 |
| Drilling Diameter Range (mm) | 600–1600 |
| Rotation Angle | 180° |
| Main Hydraulic System Pressure (MPa) | 50 |
| Gear Pump Model | CBJT2080 |
| Auxiliary Hydraulic Pressure (MPa) | 20–25 |
| Hydraulic System Displacement (ml/r) | 80 |
| Engine Model | 4108 |
| Engine Power (kW) | 88 |


What Is Rotary Drilling Equipment?
Rotary Drilling Equipment is a machine that uses a rotating drill bit and high torque to bore deep holes for piles. It works well in soil, clay, sand, and soft rock.
Main Components of a Rotary Drilling Rig
- Drill mast: supports the drilling tool firmly
- Rotary drive: provides steady torque
- Drill bit or auger: cuts and collects soil
- Kelly bar: transmits torque and crowd force
- Hydraulic system: powers all movements
- Chassis: allows easy mobility on site
Working Principle
The rotary drilling rig runs on hydraulic power. First, the engine drives the gear pump. Then, the pump supplies oil to the rotary drive and cylinders. Next, the rotary drive spins the Kelly bar and drill bit. At the same time, the crowd system pushes the bit downward. So, the bit cuts into the ground. Soil moves into the auger flights. After that, the machine lifts the auger and empties the spoil. This cycle repeats until the target depth is reached. The whole process is clean, quick, and accurate. You can adjust speed and pressure for different ground conditions.
Working Process of a Rotary Drilling Rig Machine
Follow these typical steps to get a high-quality pile:
- Position the rig over the marked drill point.
- Set the mast to vertical and lock it securely.
- Lower the Kelly bar with the auger attached.
- Start the rotary drive and apply downward pressure.
- Drill to the design depth while watching the torque.
- Raise the auger when it becomes full of soil.
- Swing the rig and spin the auger to empty the spoil.
- Repeat the cycle until the hole reaches the required depth.
- Remove the auger and place the reinforcement cage inside.
- Pour concrete to form the solid pile foundation.
This sequence keeps the site clean and the pile quality high.


Main Advantages of a Rotary Piling Machine
Why do contractors choose this rotary drilling equipment? Here are the key reasons:
- High efficiency: It drills much faster than traditional percussion methods.
- Strong versatility: It handles clay, sand, weathered rock, and more.
- Accurate verticality: The mast guide helps ensure straight holes.
- Low noise and vibration: This suits urban construction sites very well.
- Cleaner site: The auger removes soil neatly, so you spend less time on cleanup.
- Safer operation: Modern rigs come with stability controls and protective cabins.
In short, a rotary drilling rig saves time, labor, and money on nearly any piling job.
Application Fields
You can use this machinery across a wide range of projects:
- High-rise building foundations
- Bridge and flyover piers
- Highway and railway piles
- Industrial plant columns
- Solar panel support piles
- Retaining walls and diaphragm walls
- Power transmission tower bases
Each of these applications benefits from the speed and precision of rotary drilling rigs.


YG Machinery’s Advantages
Our company focuses on bringing you real, lasting value. Here is what makes our rotary drilling equipment different.
Strict Quality Control from Factory
Quality forms the backbone of every machine we build. We use high-strength steel for the mast and chassis. All hydraulic parts come from proven, reliable suppliers. Before shipping, each rotary drilling rig machine passes a multi-point inspection. We test the rotary drive, the crowd system, and the engine under load. This way, you receive a rig that works right from day one. We also provide a one-year warranty on main parts to protect your investment.
Customized Solutions
Your project has unique needs, and we listen. Our team adjusts drilling diameter, depth, and tooling to match your ground conditions. We can fit different auger types, core barrels, or rock buckets. If you work in tight urban spaces, we adapt the chassis dimensions for better access. This custom service helps you get more done with a single machine.
Fast Global Delivery and Setup Support
We keep key models and spare parts in stock. Once you confirm your order, our logistics team arranges prompt shipment. You get the drilling rig on site without long waiting times. We also offer online setup guidance through video calls. Our engineers walk you through assembly, first operation, and daily checks. So, even a new team can start drilling quickly.
Comprehensive After-Sales Service
Our support does not end after delivery. We supply spare parts quickly to minimize downtime. Our technical team helps you troubleshoot hydraulic or engine issues. Regular maintenance tips keep your machinery in peak condition. We also provide training materials for your operators. This complete care helps your rig run smoothly for years.
Free Operator Training Resources
We include detailed operation manuals and video guides with every machine. These materials show your crew how to drill safely and efficiently. Clear instructions reduce mistakes and improve daily output. If questions arise, our engineers offer live video training sessions at no extra cost. This builds your team’s confidence and protects your investment.
Beyond rotary drilling rigs, we also offer horizontal directional drills for trenchless pipeline work. Whatever your underground challenge, we have a machine to match it. Contact us today to discuss your project.

Rotary Drilling Equipment FAQ
13 meters. Our standard YG rotary drilling rig reaches a maximum depth of 13 meters. This depth suits most foundation piles for buildings and bridges. We can also customize deeper rigs upon request. The actual depth may vary slightly depending on soil type and the tooling you use.
Focus on three key factors: required drilling diameter, target depth, and soil conditions. Our rig handles diameters from 600 mm to 1600 mm. If your project needs larger piles, we can recommend specific modifications. Also, check site access. The compact design of our machine works well in confined areas.
It handles soft to medium rock with standard augers. For hard rock layers, you need a core barrel or rock auger. The standard flight auger performs best in clay, sand, and gravel. Tell us about your ground conditions. We will suggest the most effective drilling tools for your job.
Daily checks should include engine oil, hydraulic fluid, and hose conditions. Change hydraulic filters at regular intervals. Grease the Kelly bar and rotary drive weekly. Our user manual provides a full maintenance schedule. Following these simple steps keeps your rotary drilling equipment reliable and extends its service life.
Yes, absolutely. Every rig we sell includes a one-year warranty on major components. The warranty covers manufacturing defects. Our support team assists you with video diagnostics and spare parts delivery. You can buy with full confidence in our after-sales care.

Rotary Drilling Rig For Sale – Get Yours Now
You have seen the features, benefits, and real project applications. Now take the next step. YG Machinery provides high-quality rotary drilling rigs for sale at direct factory prices. Our stock model, the YG-13, comes with the specifications listed above. In addition to these rigs, we supply horizontal directional drills (HDD) for utility and pipeline installation. Both machine types help you take on more profitable contracts. Reach out today for a free consultation and a detailed price quote. Our sales team replies within 24 hours. Let us help you make your next project faster and more successful.






