The crawler rotary drilling rig—commonly referred to as a crawler-mounted rotary drill, or frequently termed a “crawler rotary piling rig” within the industry—is primarily utilized for pile foundation drilling and excavation support drilling in various engineering projects. It executes drilling operations by rotating to cut through soil and rock strata, thereby laying the groundwork for subsequent concrete pouring and pile formation. While it belongs to the same category of pile foundation construction equipment as the rotary piling machine, the former is optimized for adaptability to complex terrains, whereas the latter focuses on high-efficiency piling on level ground. Furthermore, when compared to the wheeled rotary drilling rig, the crawler-mounted design is far better suited for challenging sites involving muddy conditions, mountainous terrain, and other complex environments. Wondering which type is the best fit for your specific project? Contact us today to receive detailed product information and let us recommend the most suitable equipment for your needs.
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Hydraulic Rotary Drilling Rig Technical 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 |
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The 8 Major Application Fields of Crawler Rotary Drilling Rigs
- Building Foundation Construction: Drilling for the pile foundations of structures such as residential buildings, office complexes, and industrial plants. These rigs accommodate various pile diameter requirements, providing a stable base for the main structure, and can be paired with auxiliary rotary piling equipment to enhance piling efficiency.
- Road and Bridge Engineering: Pile foundation construction for highways, railways, and bridges. Adapted for complex terrain in the field, these rigs offer high drilling precision to ensure the stability of bridge foundations and are capable of handling complex geological strata, such as heavily weathered rock layers.
- Foundation Pit Support Construction: Drilling operations for the support systems of building and subway foundation pits. These rigs can execute tasks such as soil nailing and pile wall support, and are well-suited for construction in confined spaces along the edges of foundation pits.
- Municipal Engineering: Drilling and construction for municipal projects, including urban roads, underground utility corridors, and sewage treatment plants. Designed for use in confined urban spaces, these rigs operate with low noise and high efficiency, minimizing disruption to the daily lives of nearby residents.
- Water Conservancy Engineering: Drilling for pile reinforcement and seepage prevention in reservoirs and dams. These rigs are adapted for complex environments—such as muddy or waterfront sites—and offer excellent waterproofing capabilities, thereby ensuring the safety and integrity of water conservancy projects.
- Electric Power Engineering: Drilling for the pile foundations of substations and transmission line towers. Featuring convenient site-to-site transfer capabilities, these rigs can operate in remote mountainous and hilly regions, effectively meeting the demands of complex terrain.
- Landscaping Engineering: Drilling for landscape foundations and artificial rockeries in parks, public squares, and scenic areas. These rigs offer flexible operation and high drilling precision, ensuring that the surrounding natural landscape remains undisturbed.
- Mining Engineering: Drilling for support systems within mine roadways and tailings ponds. Adapted for dusty environments and complex terrain, these rigs are highly durable and capable of sustaining continuous operations over extended periods.
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Which Is Better for You: A Crawler or Wheeled Rotary Drilling Rig?
There are two main types of rotary drilling rig chassis: tracked and wheeled. How to choose? Consider your construction site:
Crawler rotary drilling rigs are characterized by low ground pressure, strong off-road capability, and good stability. The tracks are extendable, narrowing during transport and widening during operation, further enhancing stability. Suitable for:
- Outdoor construction sites, muddy roads.
- Situations requiring frequent borehole relocation (track travel speed 1.5-2.5 km/h).
- Large-scale pile foundation projects with high stability requirements.
Wheeled rotary drilling rigs are characterized by fast relocation and self-driving capability on roads, eliminating the need for trailers. Suitable for:
- Scattered construction sites in urban areas, where you only need to complete a few drillings at a time.
- Rental businesses require frequent relocation.
- Construction sites with good road conditions.
Selection rule: Tracked for muddy terrain, wheeled for urban relocation.
YG offers both types: the tracked version uses a hydraulic telescopic chassis for easy deployment and retrieval, while the wheeled version uses multi-axle drive and boasts strong off-road capabilities.
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Frequently Asked Questions: Rotary Drilling Rig
A1: The primary difference lies in the chassis type. Crawler rotary drilling rigs utilize a tracked chassis, offering superior off-road capabilities and making them suitable for complex, soft, or uneven terrain. In contrast, wheeled rotary drilling rigs employ a wheeled chassis, allowing for faster site-to-site transfers and making them ideal for flat, paved surfaces.
A2: Depending on the specific model, YG’s crawler rotary drilling rigs can achieve a maximum drilling diameter of over 3 meters and a maximum drilling depth of up to 100 meters—or even deeper. For specific parameters, please refer to the technical specifications for each model or consult our sales team.
A3: Rotary piling machines are primarily utilized for the pile foundation construction of large-scale infrastructure projects—such as high-rise buildings, bridges, ports, highways, and hydraulic/hydroelectric facilities. They are particularly well-suited for projects requiring large-diameter, deep piles.
A4: Selecting the right hydraulic rotary drilling machine requires careful consideration of the project’s geological conditions, required pile diameter and depth, construction efficiency requirements, and budget, as well as the equipment’s stability, reliability, and available after-sales support. We recommend consulting with a professional manufacturer to assist with the selection process.
A5: Compared to impact drilling methods, rotary drilling rig operations offer several advantages—including lower noise levels, minimal vibration, and reduced pollution—resulting in a smaller overall impact on the surrounding environment. However, proper attention must still be paid to drilling fluid (slurry) treatment and waste management to ensure environmentally responsible construction practices.
A6: As a professional manufacturer of rotary drilling rigs, YG offers comprehensive after-sales services. These include equipment installation and commissioning, operator training, scheduled maintenance, spare parts supply, and 24-hour technical support, ensuring that our customers’ equipment operates smoothly and without interruption.
