The SPT drilling machine is a drilling device specially designed for standard penetration tests. The standard penetration test is an in-situ test method, which records the number of hammer blows (i.e., N value) required for the drill rod to penetrate a certain depth by dropping a hammer of a certain weight freely at a fixed height. This N value directly reflects the density and strength of the soil. It is not only the core equipment for the standard penetration test (Standard Penetration Test, SPT) but also a key tool for obtaining stratum soil information and evaluating the bearing capacity of the foundation. Contact us now for more product information.【WhatsApp/WeChat/Skype/Phone】+86 136 1385 6800
SPT Drilling Machine 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 |
The SPT Drilling Rig Consists of the Following Main Parts:
- Power system: Provides the power required for the operation of the drilling rig, commonly diesel engines or motors.
- Drilling tower and lifting system: Used to support the drill rod and lift the heavy hammer.
- Hammer system: Includes heavy hammer, drop hammer mechanism, and counter to ensure the accuracy of hammer energy and number of times.
- Drill rod and drill bit: Transmit the impact force into the soil.
- Control system: Used to operate and monitor the various functions of the drilling rig.
Advantages of SPT Drilling Rig:
Compared with other geological exploration methods, using SPT drilling rigs for standard penetration tests has the following significant advantages:
- High cost-effectiveness: The equipment is relatively simple and the operating cost is low.
- Easy to operate: The test method is simple and easy to operate, and the technical requirements for operators are not high.
- Wide range of applications: Applicable to a variety of soil types, including sand, clay, and some gravel soil.
- Direct strength index can be obtained: The N value can directly reflect the density and strength of the soil.
- Disturbed soil samples can be obtained: While conducting the SPT test, a certain degree of disturbed soil samples can be obtained for indoor analysis.
Customer Feedback and Comments on YG SPT Drilling Rigs:
Case 1: Efficient advancement of construction projects
A large construction company used an SPT drilling machine in a commercial complex construction project. A large number of foundation pile drilling operations were required in the project, and traditional drilling equipment was inefficient and difficult to meet the construction progress requirements. After the introduction of the SPT drilling machine, its efficient drilling speed and high-precision positioning greatly improved the construction efficiency. The foundation drilling work that was originally expected to take 35 days to complete was completed in only 20 days, laying the foundation for the early completion of the entire project. The person in charge of the construction company said: “The performance of the SPT drilling machine exceeded our expectations. It not only improved construction efficiency, but also reduced labor costs. It is very worthwhile to invest.”
Case 2: Precise assistance in geological exploration
A professional geological exploration company faced complex geological conditions and high-precision drilling requirements when conducting a mineral survey in a mountainous area. With its ability to adapt to a variety of geology and advanced guidance systems, the SPT drilling machine successfully drilled high-quality holes in different strata and collected complete core samples. Based on these samples, geologists accurately analyzed the geological structure and mineral distribution in the area, providing an important basis for subsequent mineral development. The exploration company technician commented: “The SPT drilling machine has played a key role in our exploration work. Its precise drilling and stable performance make our work more efficient and accurate.”