In foundation construction, ground conditions often determine which drilling equipment a contractor needs. Soft soil, uneven terrain, and changes in soil composition can affect machine movement and drilling progress. A crawler rotary drilling rig combines a tracked chassis with a rotary drilling system, making it suitable for many building foundation, bridge pile, and civil engineering projects.
The crawler chassis allows the machine to move around suitable construction sites. The rotary system drives the drilling tool into the ground to form boreholes. Contractors need to consider pile dimensions, geological conditions, and working space before selecting a machine. These factors determine the required drilling capacity and tool configuration.
YG Hot-sale Rotary Drilling Rig Technical Parameters
| Model | YG-525 | YG-530 | YG-535 |
| Max. Drilling Diameter | 1500mm | 1500mm | 1500mm |
| Max. Drilling Depth | 25m | 30m | 35m |
| Rated Power | 156/2400r/min | 156/2000r/min | 156/2200r/min |
| Max. output torque | 110kN·m | 110kN·m | 120kN·m |
| Rotary speed | 7-33r/min | 17-50r/min | 17-45r/min |
| Max. pull-down piston push | 100kN | 100kN | 100kN |
| Max. pull-down piston pull | 120kN | 100kN | 100kN |
| Max. traveling speed | 3km/h | 2.6km/h | 2.6km/h |
| Min. ground clearance | 340mm | 340mm | 340mm |
| Approach angle | 21° | 21° | 21° |
| Overall Drilling Weight | 26t | 30t | 35t |
What Are the Core Functions of a Crawler Rotary Drilling Rig?
A crawler rotary drilling rig performs rotary drilling while moving on a tracked undercarriage. Its suitability for a project depends on drilling capacity, ground conditions, and tool selection.
- Foundation pile drilling: The rotary system forms boreholes for cast-in-place concrete piles. Contractors use this method in building foundations, bridge construction, and other civil engineering projects.
- Tracked movement: The crawler chassis allows movement across suitable uneven or soft ground. Operators must assess ground bearing capacity, slope, and site access before positioning the machine.
- Hydraulic drilling operation: The hydraulic system drives the drilling mechanism. Output torque and rotary speed affect how the machine performs under different ground conditions.
- Adaptation to different formations: Augers suit many soil layers, while drilling buckets handle suitable loose or granular materials. Rock formations may require specialized drilling tools.
Groundwater and unstable soil may require additional borehole protection measures. Contractors should select the drilling method according to the geological conditions and foundation design.
How to Choose a Crawler Rotary Drilling Rig
When comparing a crawler rotary drilling rig for sale, buyers should focus on the required drilling capacity, site conditions, and equipment configuration.
- Match the model to the foundation design. Check the specified borehole depth and diameter before selecting a machine. The rated capacity must meet the project requirements, while the drilling tools must suit the intended ground conditions.
- Check site access and ground stability. Review entrance width, turning space, working clearance, and ground bearing capacity before delivery. The machine’s operating weight and transport requirements also affect site preparation.
- Select compatible drilling tools. Different soil and rock formations require different tools. Provide geological information to the supplier so the technical team can assess the required configuration.
- Review maintenance arrangements. Confirm warranty coverage, spare-parts availability, routine maintenance requirements, and technical service terms. These details help contractors plan equipment operation throughout the project.
A tracked rotary drilling rig may suit sites where crawler mobility offers an advantage. However, buyers should compare actual site conditions and machine specifications rather than assume that every tracked model suits every terrain.
Buy Crawler Rotary Drilling Rig from Yugong Machinery
With over 20 years of experience in construction machinery manufacturing, YG Machinery supplies crawler rotary drilling rigs for foundation pile construction and other drilling projects. Our range of models and configurable drilling equipment meets different drilling depth requirements and site conditions.
Beyond rotary drilling equipment, YG Machinery also supplies a trailer mounted concrete pump, concrete mixer equipment, high frequency wall saw, tracked crusher, and mobile hydraulic lift platform. These machines serve other construction tasks, including concrete delivery, concrete mixing, wall cutting, material crushing, and elevated work.
Whether you need a crawler rotary drilling rig for foundation pile construction, a rotary drilling machine for soil investigation, or a pile driver for precast pile construction, YG Machinery can recommend suitable equipment based on your project requirements.
FAQ
What is the maximum drilling depth of a crawler rotary drilling rig?
The listed models provide maximum drilling depths of 25 m, 30 m, and 35 m. Actual performance depends on ground conditions, drilling tools, and machine configuration.
What is the maximum drilling diameter?
All three models have a listed maximum drilling diameter of 1,500 mm. Confirm the required borehole dimensions and tool compatibility before ordering.
Can a crawler rotary drilling rig drill into rock?
Suitable rock formations may require specialized drilling tools. For hard rock, assess rock strength, machine capacity, and the proposed drilling method before selecting equipment.
How do I choose between a crawler rig and a wheeled drilling rig?
A crawler rig suits many construction sites with uneven or soft ground. A wheeled rig may suit projects that require frequent movement between locations. Compare terrain, access conditions, transport arrangements, and drilling requirements before making a decision.
