In the fields of building construction, road and bridge construction, mineral exploration, and environmental monitoring, the accuracy of foundation bearing capacity and soil density data directly determines project safety. The SPT rig (Standard Penetration Test Rig) is one of the most frequently used in-situ testing devices in the world. It obtains the soil blow count (N value) through standardized hammering methods, providing reliable data support for foundation design, pile selection, and foundation treatment. SPT rigs have several common names in the international market: standard penetration test drilling rig, soil testing drilling rig, geotechnical drilling rig, soil sample drill rig, and dynamic probing rig. In the African market, they are often referred to as “SPT machine” or “N-value testing equipment,” while Southeast Asian engineering teams typically call them “soil investigation rig” or “borehole SPT rig.” Some users also refer to them alongside core drilling rigs or fully hydraulic core drilling rigs, as modern SPT rigs usually combine standard penetration testing and core sampling functions. Regardless of the name, their core function is to obtain soil penetration resistance values and undisturbed soil samples through standardized hammer impact energy. The YG series SPT rig adopts a fully hydraulic drive system, supporting both soil sampling and core drilling modes, and has been successfully delivered to many countries and regions in Mexico, Africa, and Southeast Asia. If your project also needs an SPT rig, please contact us for more product information.
Hot-sale YG SPT Rig Technical Parameter
| Model | YGX-400 | YGX-600 | YGX-800 | YGX-1000 |
| Drilling Depth(M) | 180-400-500 | 200-600-650 | 400-800-1000 | 500-1000-1100 |
| Rated pressure(MPA) | 21 | 21 | 25 | 28 |
| Rated Flow(L/min) | 168 | 192 | 260 | 300 |
| Heat Dissipation Mode | Air cooling+water cooling | |||
| Engine Brand | Yuchai | Yuchai | Yuchai | Cummins |
| Rated power/speed | 78kW/ 2400r/min | 92kW/ 2400r/min | 92kW/ 2400r/min | 154kW/2400r/min |
| Drilling Angle(°) | 0-90 | 45-90 | 45-90 | 45-90 |
| Lifting Force(T) | 12 | 16 | 24 | 30 |
| Feed Force(T) | 6 | 8 | 12 | 15 |
| Hydraulic Mud pump flow | 30-90（L/min） | 30-90（L/min） | 90-180（L/min） | 90-180（L/min） |
| Hydraulic Mud pump power | 4-7(MPA) | 4-7(MPA) | 4-7(MPA) | 4-7(MPA) |
| Dimension | 4000*1900*1800mm | 4000*2000*1800mm | 5500*2100*2000mm | 6000*2200*2400mm |
| Weight | 4.3T | 4.5/5.5T | 6.5T | 7.5T |
8 Applications of SPT Drilling Rigs
- Foundation Investigation in Building Engineering: For foundation design of high-rise buildings, commercial complexes, and residential communities, SPT rigs obtain N-value data to determine the bearing capacity and settlement characteristics of the foundation, providing a basis for pile foundation selection and foundation dimensions. Building regulations in African countries such as Kenya and Nigeria have made geotechnical investigation reports a mandatory requirement for building approvals.
- Road and Bridge Engineering: For route surveying and pier foundation design of highways, railways, and bridges, the SPT rig performs penetration tests every 1.5 meters along the route, drawing stratigraphic profiles to provide data support for roadbed design and pier pile lengths.
- Mineral Resource Exploration: For geological exploration of metal mines and oil and gas fields, the SPT rig, combined with core sampling functionality (full hydraulic core drilling rig mode), quickly obtains core samples to analyze ore grade and stratigraphic structure, providing a geological basis for mine development plans.
- Hydraulic Engineering Dam Foundation Investigation: Stability assessment of dam foundations for reservoirs, dams, and hydropower stations; evaluation of seepage prevention performance of earthen dams and reservoir leakage risk using SPT data, providing key parameters for dam design and seepage prevention treatment.
- Environmental Engineering Monitoring: Soil pollution diffusion monitoring and groundwater hydrological characteristic investigation; SPT rig performs stratigraphic analysis while sampling, providing soil and groundwater distribution data for ecological restoration projects.
- Disaster Prevention and Mitigation Engineering: Geological hazard early warning in earthquake fault zones and debris flow risk areas; analysis of stratigraphic structure and stability using SPT data, providing a geological basis for disaster prevention engineering design.
- Scientific Research and Polar Exploration: Cutting-edge scientific research projects such as polar glacier and deep-sea sediment sampling; SPT rig’s modular design and extreme environment adaptability make it standard equipment for scientific expeditions.
- Port and Marine Engineering: Underwater foundation investigation of port terminals and cross-sea bridges; SPT rig, combined with a casing system, stably samples from loose sand and silt layers, providing geological data for marine engineering design.
Overseas Real-World Customer Application Cases Using YG’s SPT Drill Rigs
Case 1: Indonesian Infrastructure Geotechnical Investigation Project
- Client Background: A Jakarta-based infrastructure engineering company in Indonesia undertook an urban road renovation project, requiring the completion of standard penetration tests (SPTs) and soil sampling along the route in batches.
- Project Pain Points: Old-fashioned equipment resulted in large data deviations, incomplete sampling, and repeated acceptance failures; the equipment was bulky, making it inaccessible in confined urban sites, leading to extremely low construction efficiency.
- Solution: Purchased 3 standard SPT rigs, along with a complete soil sampling kit.
- Implementation Results: The foldable design of the equipment easily adapted to confined urban sites; test data achieved 100% compliance, resulting in a one-time project acceptance; the number of daily survey points increased by 45%, and all survey tasks were completed 18 days ahead of schedule.
- Customer Testimonial: “This soil testing drilling rig is precise, stable, and flexible in relocation, completely solving our problems of difficult acceptance testing and slow construction. It’s our main equipment for daily exploration.”
Case 2: Malaysian Geological Exploration Project
- Customer Background: A geological exploration team in Malaysia, responsible for rural soil and water resource exploration, requires both shallow soil sampling and deep core drilling.
- Project Pain Points: A single piece of equipment cannot handle both sampling and core drilling, requiring multiple machines to operate in combination, resulting in high procurement and maintenance costs; equipment is prone to failure in high-temperature field environments.
- Solution: Purchase two high-configuration full hydraulic core drilling rigs (SPT rig).
- Implementation Results: One machine completes penetration testing, soil sampling, and core drilling, replacing three single pieces of equipment; the equipment is high-temperature resistant, dustproof, and rustproof, operating continuously in the field without failure, reducing overall construction costs by 50%.
- Customer Testimonial: “The equipment is extremely versatile, adaptable to Malaysia’s complex terrain and high-temperature climate, with stable performance and cost-effectiveness far exceeding similar imported equipment. It’s the first choice for long-term cooperation.”
Frequently Asked Questions about YG’s SPT Drilling Rig
A1: Yes, this equipment combines the functions of a soil sample drill rig and a core drilling rig, allowing for switching between operating modes as needed to simultaneously perform soft soil sampling and rock core drilling.
A2: The full hydraulic core drilling rig provides smoother drilling, undisturbed sampling, higher accuracy of test data, suitability for deep and complex geological formations, lower failure rate, and suitability for high-standard projects.
A3: The entire machine is dustproof, waterproof, and rustproof, adaptable to temperature differences from -15℃ to 45℃, and can operate stably in tropical, rainy, and high-temperature outdoor sites, suitable for most overseas climates.
A4: The equipment is easy to operate. With accompanying English tutorials, users can become proficient in completing the entire process, including penetration testing, sampling, and equipment debugging, within 1-3 days, without requiring any professional qualifications.
A5: The equipment is foldable and lightweight, requiring no hoisting. It can be transported by pickup truck or van, perfectly suited for dispersed field survey sites.
A6: The equipment strictly adheres to international geotechnical investigation standards. Hammering accuracy and sampling quality meet standards, and the test data can be directly used for overseas engineering applications, acceptance, and design drawings.