

An SPT drill rig is a piece of equipment used for soil testing and geotechnical investigation. The letters “SPT” stand for Standard Penetration Test. This test measures how dense and strong the soil is before construction begins. Engineers use the data to design safe foundations for buildings, bridges, highways, and railways.A good SPT drilling machine is built with a strong steel frame, a powerful hydraulic system, and simple controls. It works well in different ground conditions, from soft clay to hard rock. Whether you are working in a city or a remote area, this machine delivers consistent results. Many contractors and engineering teams around the world rely on SPT drilling equipment for their projects.
Technical Specifications of the YGX Series SPT Drill Rig
| 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 |


Key Advantages of This SPT Drilling Machine
- Powerful Hydraulic System:The hydraulic system gives the SPT Drilling Equipmnet strong lifting and feeding force. The YGX-1000 model, for example, has a lifting force of 30 tons and a feed force of 15 tons. This power helps the rig handle tough soil conditions with ease. The system runs smoothly and gives the operator good control over the drilling process.
- Flexible Drilling Angle:Most models can drill at angles from 45 to 90 degrees. The YGX-400 can even drill from 0 to 90 degrees. This flexibility allows the machine to work on slopes and in tight spaces. It also helps the operator reach different soil layers without moving the whole rig.
- Dual Cooling System:All models use both air cooling and water cooling. This system keeps the engine from overheating during long work hours. It also helps the machine perform well in hot weather. Less heat means less wear on the parts, which extends the life of the equipment.
- Strong Engine Options:The YGX-400, YGX-600, and YGX-800 come with Yuchai engines. The YGX-1000 uses a Cummins engine with 154kW of power. These engines are known for their reliability and fuel efficiency. They provide enough power for deep drilling and heavy work.
- Compact and Mobile Design:The machines are built to be moved easily between job sites. The dimensions range from 4,000mm to 6,000mm in length. The YGX-400 weighs only 4.3 tons, while the YGX-1000 weighs 7.5 tons. This range gives buyers options based on their transport and setup needs.
Applications of SPT Drilling Rig
- Geotechnical Investigation:Before any construction project starts, engineers need to know what is under the ground. The SPT core drilling machine takes soil samples and measures soil strength. This data helps design safe foundations. The test follows international standards like ASTM D1586. Many government agencies and private firms use this method for their projects.
- Building and Infrastructure Projects:For high-rise buildings, bridges, and highways, soil quality is critical. The SPT core drilling machine provides the N‑value, which shows how dense the soil is. Engineers use this number to decide what type of foundation to build. A weak soil layer might need piles or other deep foundation solutions.
- Water Conservancy and Dam Projects:Dams and reservoirs need stable ground to hold water safely. The SPT drilling equipment tests the soil around these structures. It helps engineers check for leaks and assess the stability of earth dams. This ensures the safety of the people and property downstream.
- Road and Railway Construction:Roads and railways need a solid base to support heavy traffic. The spt rig tests the soil along the planned route. If the soil is too soft, the design team can add extra layers or change the route. This prevents the road from cracking or sinking over time.


FAQ About the SPT Drill Rig
Q: What regular maintenance does this SPT drill rig need?
A: Check hydraulic oil, clean air filters, and grease moving parts. A full checklist is in the manual. Ask for the detailed schedule when you request a quote.
Q: Are spare parts readily available for this SPT Drilling Rig?
A: Yes. YG Machinery stocks all original parts. Most ship within 24 hours. Contact sales for a price list before you buy.
Q: Does YG Machinery offer operator training?
A: Yes. Manuals and videos come with the machine. On‑site training is available for bulk orders. Ask about training packages when you get a quote.
Q: How is the SPT drilling equipment shipped and delivered?
A: The rig is packed in a steel frame for ocean freight. YG handles shipping and customs. Get a delivery cost estimate with your price inquiry.

YG Machinery – SPT Drill Rig Manufacturer
YG Machinery is a trusted manufacturer of heavy equipment for construction and geotechnical work. The company produces the YGX Series SPT drill rig, along with other machines like the Hydroseeding Spraying Machine, Aluminum Alloy Lifting Platform, and Egg Tray Production Machine,etc.YG Machinery serves customers around the world with reliable products and good after‑sales support. For more information or to request a quote, visit the YG Machinery website or contact the sales team today. We are ready to help you find the right equipment at a competitive price.【WhatsApp/WeChat/Phone/Skype】+86 13937183602









