The SPT drilling machine is essential for geotechnical engineering, foundation investigation, and site assessment projects. Accurate soil data helps reduce project risks, optimize foundation design, and avoid costly construction delays. YG Machinery provides professional drilling solutions to improve efficiency, ensure precision, and reduce operational costs. Whether for urban construction, infrastructure, or remote sites, the right equipment ensures reliable field results.

Why Choose an SPT Drilling Machine?
High-quality subsurface data is critical for engineering safety and successful project planning. Before construction begins, engineers must understand soil strength, density, bearing capacity, and groundwater conditions to make informed foundation design decisions. Reliable drilling equipment helps collect accurate field data, reducing the risk of structural issues, unexpected delays, and costly redesigns during construction.
The right equipment provides several important advantages:
High Efficiency
- Faster project completion through efficient drilling operations
- Increased productivity, allowing more boreholes to be completed each day
Accurate Results
- Accurate penetration testing and soil sampling for dependable results
- Enhanced drilling stability for improved testing accuracy
- Consistent performance across different geological formations
Cost Savings
- Reduced labor requirements and improved operational efficiency
- Lower maintenance costs and reduced equipment downtime
Flexible Operation
- Adaptability to various terrains, including urban, rural, and remote sites
- Better mobility and transportation convenience between job locations
By investing in professional drilling equipment, contractors and engineering firms can improve investigation quality, optimize project schedules, and achieve greater long-term cost savings.
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Hydraulic SPT Rig For Challenging Ground Conditions
Hydraulic systems provide stable power for high-efficiency drilling in dense clay, gravel, or mixed soil formations. Benefits include:
- Strong penetration capability
- Stable operational performance
- Smooth drilling and control
- Enhanced reliability in complex formations
Key Benefits For Your Project
| Feature | Customer Benefit |
|---|---|
| High Precision Testing | Accurate foundation data for reliable foundation design and engineering decisions |
| Fast Drilling Performance | More boreholes completed per day, improving overall project efficiency |
| Hydraulic Drive System | Better adaptability to hard soil, gravel, and complex geological formations |
| Mobile Design | Easier transportation and faster deployment across different job sites |
| Multifunction Capability | Supports both soil sampling and penetration testing in one machine |

Soil Testing Rig For Reliable Foundation Analysis And Applications
A soil testing rig supports a wide range of geotechnical investigation and foundation assessment tasks while providing the flexibility needed for different engineering projects. It can be used for standard penetration testing, soil sampling, geological exploration, foundation investigation, groundwater assessment, and borehole drilling. These capabilities make it suitable for infrastructure construction, commercial building development, energy projects, water conservancy engineering, and mining exploration. If you’re evaluating equipment for an upcoming investigation project, YG Machinery can help you compare models, assess drilling requirements, and identify a configuration that fits your site conditions and operational goals.
Common Investigation Tasks
- Standard Penetration Testing (SPT)
- Soil sampling
- Geological exploration
- Foundation investigation
- Groundwater assessment
- Borehole drilling
Typical Project Applications
- Infrastructure: roads, railways, airports, and bridges
- Commercial buildings: offices, shopping centers, and industrial facilities
- Energy projects: wind farms, solar installations, and transmission lines
- Water conservancy: dams, reservoirs, and irrigation systems
- Mining and exploration projects
SPT Drilling Machine Technical Specifications
| Model | YGX-400 | YGX-600 | YGX-800 | YGX-1000 |
| Drilling Depth | 180-500m | 200-650m | 400-1000m | 500-1100m |
| Rated Pressure | 21MPa | 21MPa | 25MPa | 28MPa |
| Rated Flow | 168L/min | 192L/min | 260L/min | 300L/min |
| Engine Brand | Yuchai | Yuchai | Yuchai | Cummins |
| Engine Power | 78kW | 92kW | 92kW | 154kW |
| Drilling Angle | 0-90° | 45-90° | 45-90° | 45-90° |
| Lifting Force | 12T | 16T | 24T | 30T |
| Feed Force | 6T | 8T | 12T | 15T |
| Weight | 4.3T | 4.5-5.5T | 6.5T | 7.5T |
Specification Interpretation
- YGX-400: Small/medium projects, high mobility
- YGX-600: Deeper drilling with compact footprint
- YGX-800: Demanding geotechnical investigation
- YGX-1000: Large-scale infrastructure, max torque and depth


How Mobile Design Improves Project Efficiency
- Fast Deployment: Enables crews to start drilling operations quickly, reducing project startup delays and improving overall efficiency.
- Lower Transport Costs: Minimizes logistics expenses when moving between different job sites, helping reduce overall project operating costs.
- Easy Site Access: Suitable for urban construction zones, remote locations, confined spaces, and areas with limited working conditions.
- Higher Productivity: Enables rapid relocation between boreholes, reducing non-productive downtime and improving project scheduling.
- Flexible Operation: Allows contractors to efficiently manage multiple projects across different regions and job sites.
- Reduced Labor Demand: Simplifies equipment movement and setup, helping lower labor requirements and operational expenses.
- Better Equipment Utilization: Increases the number of drilling tasks completed within the same working period, maximizing equipment value.
- Strong Site Adaptability: Responds effectively to changing site conditions, ensuring continuous progress and efficient project management.


Soil Testing Drilling Rig Frequently Asked Questions
BQ, NQ, HQ, and PQ are standard wireline core drilling tool sizes defined by international standards:
BQ: Drill rod 55.6mm (outer) / 46.1mm (inner), drill bit 60mm, core 36.5mm. Best for shallow drilling in soft rock and soil.
NQ: Drill rod 69.9mm / 60.3mm, drill bit 75.7mm, core 47.6mm. Suitable for deeper drilling with high core recovery.
HQ: Drill rod 88.9mm / 77.8mm, drill bit 96mm, core 63.5mm. Ideal for deep drilling in harder rock and soil, offering efficient core recovery.
PQ: Drill rod 114.3mm / 101.6mm, drill bit 122.6mm, core 85mm. Large wireline core bit for specialized deep drilling applications.
These specifications help geologists and engineers select the right drill size based on depth, rock hardness, and required core diameter.
Wireline coring is a highly efficient geological exploration technique used to recover rock core samples without pulling the entire drill string out of the borehole.
With a wireline coring system, the inner tube containing the core sample is retrieved from the bottom of the hole using a wireline cable, while the drill rods and drill bit remain in place. This method significantly reduces drilling downtime, improves core recovery rates, and increases overall drilling efficiency.
Wireline coring is widely used in mineral exploration, geotechnical investigations, and geological surveying, especially for deep drilling projects where frequent core retrieval is required. It helps operators obtain high-quality core samples while reducing labor and operational costs.
Ranges from 180 m to 1,100 m depending on the model.
Consider depth, soil type, site conditions, and budget.

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Contact YG Machinery for pricing, specifications, and a tailored solution for your geotechnical project. Ensure accuracy, efficiency, and reliability on every job.



