An SPT drill rig is a standard penetration test-ready full hydraulic core drill, configured with extra SPT testing attachments to expand original core drilling functionality. Standard full hydraulic core drill units complete rock core extraction, and this SPT drill rig retains all core sampling capabilities while adding in-hole Standard Penetration Test to identify soil stratification and physical engineering parameters. It gathers bearing capacity and density data of subsurface soil, delivering reliable geological reference for civil design, ground improvement and infrastructure construction across geological exploration and building engineering sectors. YG manufactures four production specs: YGX-400, YGX-600, YGX-800 and YGX-1000, with maximum drilling depth ranging from 500m up to 1100m, matching varied depth demands of site investigation tasks. This SPT machine expands application boundaries for regular core drilling jobs without changing the host drill’s core mechanical structure. If you have a project, please contact us.
SPT Drill Rig 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 |
Working Process of SPT Drill Rig
Following this proven workflow ensures accurate core samples and reliable SPT test results with any SPT drilling machine:
- Site preparation: Level the ground, adjust the rig to a horizontal position, set the mast to the required angle and prepare the mud pit.
- Casing installation: Drive casing down to bedrock to prevent hole collapse in soft surface soil layers.
- Formal drilling: Connect the double-tube drill assembly to the power head, start the mud pump and begin drilling. Add 1.5m drill rods sequentially as drilling progresses.
- Core retrieval: After completing each drilling run, use the wireline winch to extract the inner tube and collect intact core samples.
- Core documentation: Label and arrange core samples in order for geological analysis and record-keeping.
- SPT testing: Perform standard penetration tests at specified depths to measure soil resistance and determine engineering properties.
- Hole completion: Pull out all drill rods and casing, seal the borehole with cement and restore the work site.
Real-World Project Cases From the Philippines and Mexico
Case 1: Philippines Civil Foundation Survey With SPT Drilling Machine
A medium-sized local geotechnical firm in the Philippines purchased the YGX-600 unit to finish a suburban residential cluster foundation investigation. The construction zone has alternating soft clay and sandy soil layers, which need core sampling alongside regular SPT penetration testing to confirm ground bearing parameters. Previously, the team rented two separate machines for core drilling and soil testing and faced high daily rental costs. After switching to this SPT drilling machine, all core extraction and penetration testing are finished on identical boreholes directly. The project wraps up ahead of the planned schedule, and the site manager comments the dual-purpose design effectively cuts third-party equipment rental expenditure and simplifies daily site scheduling.
Case 2: Mexico Regional Mineral Reconnaissance Using SPT Drill Rig
A Mexican geological exploration firm selected the YGX-800 SPT drill rig for mountainous mineral resource reconnaissance work. The prospecting zone mixes hard bedrock and loose overburden soil, requiring continuous core collection for mineral composition analysis plus periodic SPT tests to judge overlying soil stability. Before purchasing this rig, the team outsourced all SPT testing to local subcontractors and waited days to receive test reports. With the all-in-one SPT machine, field crews complete core sampling and in-situ penetration measurement right on-site to get instant soil data. The project geologist states that in-field integrated testing speeds up geological mapping progress and reduces extra subcontract service spending.
Advantages of SPT Drill Rig
This SPT drill rig relies on four core structural merits: full hydraulic drive, ground-mounted multi-angle mast layout, simplified field operation, and robust integrated frame, helping operators retrieve intact, contamination-free cylindrical core samples alongside standard penetration test data during precision deep-hole drilling:
- Graded power configuration: YGX-400 to YGX-800 use Yuchai engines with 78-92kW output, while the top-spec YGX-1000 adopts a Cummins 154kW engine for heavy-duty deep drilling. All engines deliver stable power at 2400r/min for continuous operation.
- Dual cooling system: Combined air and water cooling prevents overheating even during 8-hour continuous work in high-temperature environments, extending component service life.
- Flexible drilling angle: YGX-400 supports 0-90° drilling for vertical, horizontal and inclined boreholes, while YGX-600 to YGX-1000 cover 45-90° angles for standard geotechnical surveys, realized via its grounded adjustable mast structure.
- Integrated hydraulic mud pump: Built-in mud pump with 30-180L/min flow rate eliminates the need for separate pumping equipment, reducing site setup time.
- High lifting and feeding force: Lifting force ranges from 12T to 30T and feeding force from 6T to 15T, enabling smooth drilling through hard rock formations and dense soil layers, keeping core specimens complete.
SPT Rig For Sale– YG Machinery
If you are looking for a reliable SPT rig for sale or need technical support to select the right model for your project, contact our team today. We will provide a detailed quotation and customized solution tailored to your specific survey requirements.
