Rotary drilling rig machines are specialized construction equipment designed for foundation pile work in civil engineering projects. They are particularly suitable for sandy, cohesive, and silty soils, and are widely applied in bored piles, diaphragm walls, and foundation reinforcement projects. These machines operate through a hydraulic power system that drives the rotary head, drill rods, and drill bit to cut through soil and rock. Using drilling buckets to extract soil and continuous circulation work, they complete pile hole construction efficiently. Rotary drilling rig machines are indispensable for construction in buildings, bridges, railways, and roads. YG offers a full range of small, medium, and large rigs to meet diverse project requirements. For inquiries, contact YG directly.
Hydraulic 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) | Hydraulic system working pressure (MPa) |
Case Study 1: Mexican Residential Construction Contractor — Urban Housing Pile Project
Client Background
A private foundation engineering company located in central Mexico, specializing in urban residential and small commercial building piles. The project site features soft soils, silty layers, and sandy layers. Construction is dispersed, deadlines are tight, and the sites are compact. The client previously rented local equipment, which was expensive and prone to breakdowns.
Challenges
- Urban construction requires strict noise and vibration control. Traditional rigs often caused complaints and work stoppages.
- Soil layers of clay and sand were prone to shrinkage and hole collapse, resulting in inconsistent pile quality.
- Multiple small projects required rapid site transfer; large crawler rigs were inconvenient for transportation.
- Operators were primarily local personnel needing simple, easy-to-learn machinery with minimal maintenance.
Solution
YG recommended a small hydraulic rotary drilling rig machine with specifications: 13m drilling depth, 600–1600mm diameter, powered by Yuchai 4108 engine, stable hydraulic system, fast relocation, low-noise and low-vibration operation.
- Dual-bottom sand buckets + slurry wall protection handled sandy soil collapse, improving hole stability.
- Spanish-language operational videos, local spare parts, and 24-hour online support were provided.
- Operator training for basic operation, daily inspection, and minor troubleshooting was included.
Results
- Single pile drilling time reduced by 30%, allowing 3–4 additional small projects monthly.
- Hole verticality and diameter stability improved; hole collapse and shrinkage were significantly reduced.
- Relocation was convenient; ordinary trucks could transport the rig to dispersed sites.
- Noise met urban standards, preventing complaints and enabling continuous construction.
Client Feedback
“Durable, fuel-efficient, and intuitive. Local operators can work independently within a week. Compared to rental equipment, monthly costs are lower, and schedules are easier to control. We plan to purchase more for municipal projects.”
Case Study 2: Peruvian Port Infrastructure Project
Client Background
A large Peruvian construction company managing pier and breakwater projects at QianKai Port. The geology consists of dense gravel-sand layers with localized highly weathered rock. The project required deep piles with large diameters, high torque, and strong drilling performance in coastal environments with high humidity and corrosive sea winds.
Challenges
- Gravel + weathered rock layers caused slippage and slow drilling for ordinary friction-rod rigs, unable to meet depth and diameter requirements.
- Coastal high-humidity and saline conditions demanded high reliability in chassis and hydraulic systems.
- Verticality and depth precision were critical, and traditional rigs had excessive deviation.
- Tight schedules required continuous operation; downtime for maintenance risked delays.
Solution
YG recommended a crawler-type rotary drilling rig, depth 25m, diameter 1400mm, powered by a Cummins engine, high-torque full-pressure system, and crawler chassis with optimized ground pressure for heavy-duty coastal conditions.
- Combined core bucket + auger drill matched gravel and weathered rock layers, improving penetration efficiency.
- Anti-corrosion treatment for critical structures and upgraded hydraulic seals suited to marine environments.
- Equipped with automatic verticality control to ensure hole precision; on-site technical support and spare parts supplied.
Results
- Gravel and weathered rock layers were drilled efficiently; no slippage or stuck rods occurred.
- Hole precision met requirements, sediment control was effective, and inspections passed successfully.
- Continuous stable operation with a low monthly failure rate; maintenance costs are manageable.
- Enabled timely pile installation, laying the foundation for berth construction.
Client Feedback
“Crawler-type rigs perform reliably in hard rock and deep-hole conditions. The chassis is stable, drilling precision is excellent, and after-sales service is responsive. Spare parts availability is sufficient, making YG our first choice for upcoming bridge projects.”
Why Overseas Clients Prefer YG Rotary Drilling Rig Machines
With global infrastructure projects expanding, more international clients seek efficient, reliable, and cost-effective drilling solutions. YG rotary drilling rig machines are increasingly popular for several reasons:
- Higher Construction Efficiency: Rotary rigs complete pile drilling faster than traditional methods, significantly improving project schedules.
- Adaptable to Complex Geology: Suitable for soil layers, sand, and partial rock formations, ensuring stable and consistent drilling.
- Lower Labor Costs: Mechanized operation reduces the need for extensive manual labor, increasing overall project profitability.
- Intelligent Operation: Modern rigs feature smart control systems, making operation simpler and more accurate.
- Comprehensive After-Sales Support: YG provides remote guidance, spare parts supply, and technical support to ensure smooth project execution.
- Customizable Solutions: Machines can be tailored to specific environmental and geological conditions in different countries, providing optimized drilling performance.
YG rotary drilling rig machines are a reliable choice for international construction projects. With ongoing support, intelligent operation, and customizable configurations, YG ensures projects are completed on schedule and to high-quality standards. Whether for soft soils, sandy layers, or hard rock, YG’s rotary drilling rig machines are designed to handle complex geotechnical challenges while providing operators with an intuitive and safe drilling experience. For more information on YG rotary rigs or to request a quote, contact us today.