A rotary drilling rig uses a rotating bit to drill into the ground. It is commonly used for foundation projects, water well drilling, geotechnical investigations, and mineral exploration. Powered by a diesel engine, fully hydraulic drive, and crawler tracks, it moves easily on rough terrain. The machine offers low noise, low vibration, high torque, fast hole forming, and 360-degree rotation. Need a reliable rotary well drilling rig? Contact YG Machinery for a custom quote.
Key Parameters of YG Rotary Drilling Equipment
| Model | YG13 | YG15 | YG16 | YG20 |
| Max.Drilling Diameter | 1000mm | 1600mm | 1500mm | 1600mm |
| Max.Drilling Depth | 13m | 15m | 16m | 20m |
| Max. Rotary torque | 50KN.m | 45kN .m | 46KN.m | 36KN.m |
| Rotary angle | 360° | 180° | 180° | 360° |
| Rotary speed | 10-45r/min | 17-45r/min | 20-46r/min | 22-43r/min |
| Dimension(m) | 3.1×1.92×3.5m | 6.8×2.27×3.2m | 10 x 2.3x 3.2 m | 9.5×2.6×3.5m |
| Weight | 9ton | 13 ton | 11 ton | 17.8 ton |
How a Rotary Well Drilling Rig Works?
The machine operates in three main steps. First, the diesel engine powers a hydraulic pump. The pump sends oil to the rotary drive system. That system turns the drill string and bit. Second, the operator lowers the rotating bit into the ground. Weight from the machine pushes the bit down. Cuttings are lifted by air or drilling fluid. Third, when the bit reaches target depth, the operator pulls it out. Then the machine rotates to a new position for the next hole. This cycle repeats until all holes are complete.
A rotary drilling rig can handle different soil conditions. For soft ground, a tri-cone bit works well. For hard rock, a PDC bit or hammer bit is better. The hydraulic system allows precise control of rotation speed and down pressure. That prevents the bit from getting stuck or deviating from the vertical line.
Key Advantages of Hydraulic Rotary Drilling Rig
1.It delivers consistent torque at any depth
The hydraulic motor does not lose power as the hole gets deeper. This means you maintain drilling speed even in tough ground conditions like hard clay or compacted gravel. Faster drilling through difficult layers shortens project timelines and reduces wear on the drill bit.
2.It reduces downtime
Fewer moving parts than mechanical rigs. Maintenance is straightforward. Most repairs only need basic tools. A small tool kit and one trained worker can handle most common fixes on site. The rig gets back to work in hours, not days. That keeps your crew productive and your schedule on track.
3.It operates quietly
Noise levels are much lower than those of hammer or percussion rigs. That makes a rotary drilling rig machine suitable for urban construction sites with noise restrictions. You can run night shifts without disturbing nearby residents. This flexibility helps you meet tight deadlines and avoid permit violations.
4.It provides precise control
The operator can adjust the rotation speed and pull-down force while drilling. That protects the drill bit and keeps the hole straight. Less deviation means fewer redrills and lower material waste. Accurate holes also reduce concrete overuse when pouring piles.
5.It is fuel efficient
The hydraulic pump only draws power when needed. Idle consumption is minimal. Over a full workday, this can cut fuel costs by 15 to 20 percent compared to older systems. Lower fuel use also reduces your carbon footprint. And fewer refueling stops mean more time actually drilling.
Where Can a Rotary Drilling Rig Machine Be Used?
- Deep foundation drilling: For deep foundation work, contractors drill holes to place concrete piles. Those piles support high-rise buildings, bridges, and industrial plants. The machine cuts through sand, clay, gravel, and soft rock.
- Water well drilling: It serves farms, villages, and factories. The rig drills wells from 20 to 300 meters deep. A well is ready in days instead of weeks. Clean water access transforms daily operations for rural communities.
- Geotechnical investigation: For geotechnical investigation, engineers need soil and rock samples before building a dam or tunnel. The machine takes core samples at precise depths. Those samples tell engineers how strong the ground is.
- Mineral exploration: For mineral exploration, it drills small diameter holes to find gold, copper, or rare earth elements. With the right drill pipe, it can reach depths over 500 meters. Core samples reveal deposit grade and help guide investment decisions.
Get Your Hydraulic Rotary Drilling Rig from YG
A rotary drilling rig is a major investment. But the right machine pays for itself quickly through faster drilling, less downtime, and lower labor costs. YG Machinery has been building rotary rigs for over a decade. Our machines are working on job sites in more than 20 countries. We offer durable construction, reliable hydraulic systems, and easy maintenance. Every rig is tested before shipping. Ready to upgrade your drilling fleet? Contact YG Machinery today. Please tell us your typical hole depth, diameter, and ground condition. We will recommend the best model and send you a detailed quote within 24 hours.
