You need to drill holes for building foundations, bridge piers, or solar panel posts. The ground is clay, sand, or gravel. A huge track drill costs too much and is hard to move. What do you use? A hydraulic rotary drill rig. This machine uses hydraulic power to spin a drill bucket into the soil. The bucket fills with dirt, lifts it out, and empties it. Repeat until the hole is deep enough—no digging mud required for most soils.
YG offers a compact, wheel‑mounted hydraulic rotary drill rig. It drills down to 13 meters and makes holes from 600 mm to 1,600 mm wide. The whole machine weighs 8,000 kg so you can tow it behind a truck. It drives on roads at 50 km/h. The engine is a simple 4108 diesel with 88 kW. The hydraulic system works at 20‑25 MPa.
Hydraulic Rotary Drill Rig – Key Specifications
Here are the main numbers from the YG parameter table. I have picked the ones that help you compare.
| 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 |
YG also offers three different sizes of DTH rotary drill rigs:
- Small rig: Torque 100‑120 KN·m, engine power 100‑170 KW, drilling depth 40‑45 m, hole diameter 0.5‑1.5 m, weight 35‑40 t. For slope protection piles and small municipal piles.
- Medium rig: Torque 180 KN·m, engine power 200 KW, depth 60 m, diameter 0.8‑1.8 m, weight 65 t. For highway bridge piles and large building bearing piles.
- Large rig: Torque 240 KN·m or more, engine power 300 KW, depth 80 m, diameter 1‑2.5 m, weight over 100 t. For extra‑large bridge piers and special foundation piles.
What Is A Hydraulic Rotary Drill Rig Used For?
- Cross‑sea / cross‑river bridges
- Urban transportation
- High‑speed railways
- Large building venues
- Commercial and residential buildings
- Transportation hubs
- Power transmission tower foundations
- Solar panel foundations
- Coal mining
Ground conditions it can handle: clay, sand, gravel, and medium‑to‑lightly weathered rock
For soft soil reinforcement and cut‑off walls, CFA rotary drilling rigs(continuous flight auger). They drill and pump grout at the same time – used in subway station retaining structures.
For hard rock and deep holes, there are cased (locked) DTH rotary drill rigs. They use a locking mechanism to transfer high torque.
For soft soil and shallow holes, square‑kelly rigs use friction to transmit torque.
How Does A Hydraulic Rotary Drill Rig Work?
Translation: The rotary drive turns the drill rod and the drilling bucket. The bucket teeth cut into the soil. Soil cuttings enter the bucket. When the bucket is full, you lift it out of the hole and empty the soil. Repeat until you reach the planned depth.
That is it. No complex mud circulation needed for dry drilling. For loose ground, you may add a little water or use a different bucket.
Delivery Time And Packaging
Delivery time: 10‑15 days
- Packaging and shipping:
- 15m and 20m standard DTH rotary drill rigs → fit directly into a 40ft container.
- 25m and 30m standard rigs → need a flat rack or bulk vessel.
- 25m and 30m rigs with telescopic chassis → extra cost, but then they fit into a 40ft container.
- Rigs over 30m → only bulk vessel (exceeds container weight limit).
Is This Hydraulic Rotary Drill Rig Right For You?
If you drill holes for building piles, solar panel foundations, power towers, or small bridges – and the ground is clay, sand, gravel, or moderately weathered rock – the YG wheel‑mounted hydraulic rotary drill rig is a good fit. It drills 13m deep and up to 1.6m wide. It weighs only 8 tons, so you can move it easily. The 88 kW engine is simple and common.
For deeper holes (40‑80m) and larger diameters, YG also offers medium and large tracked rigs. For soft soil reinforcement, ask about the CFA rig. For hard rock, ask about the cased (locked) rig.
YG Machinery serves markets in South America, Southeast Asia, Oceania, Europe, and the Americas. Delivery is 10‑15 days. Packaging options depend on mast length.
Contact YG directly with your project depth, diameter, and ground type. They will recommend the right rig – small wheel, medium tracked, or large tracked. No extra guesswork. Just the machine you need.