A piling attachment for excavator uses high-frequency hydraulic vibration to drive and extract piles. It is powered by the excavator’s hydraulic system and transfers vertical vibration to the pile.
The vibration changes the soil structure around the pile and reduces friction between the pile and surrounding soil. The pile can then enter the ground through vibration and its own weight. The same principle allows piles to be extracted when required.
The equipment is available in five models for excavators from 8 to 55 tons.
How Does a Piling Attachment for Excavator Work?
The hydraulic vibration system contains two eccentric shafts driven by hydraulic motors. The shafts rotate at high speed and generate vertical excitation force.
Vibration is transmitted to the pile through the working mechanism. Vibration-damping rubber blocks maintain an amplitude of approximately 3-8 mm.
Operators can adjust this high-frequency vibration to suit different working requirements. A combined-flow output function is also available for customers who need different vibration frequency settings.
The basic working process is:
Hydraulic Power → Eccentric Shaft Rotation → High-Frequency Vibration → Vibration Transfer to Pile → Pile Driving or Extraction
When the soil is hard and the pile moves too slowly, the excavator boom can apply additional downward pressure. Operators can lift the pile and drive it down again to improve penetration.
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What Pile Types Can the Piling Attachment for Excavator Handle?
The machine is designed for several common pile types.
According to the supplied product information, the main applications include:
- U-shaped steel sheet piles
- I-shaped steel sheet piles
- Larssen piles
- Steel pipe piles
- Concrete precast piles up to 10 m long
The required excitation force depends on the site soil layer, soil properties, water content, and pile structure. Therefore, model selection should be based on the actual piling conditions rather than pile type alone.
What Are the Main Advantages of YG Excavator Pile Driver?
The excavator pile driver uses an existing excavator as the carrier. This creates several practical advantages for contractors.
First, the operator does not need a separate dedicated piling machine. The excavator can move around the construction site and work in different positions.
Second, the attachment can be removed when piling work is completed. The excavator can then be used with other attachments such as a bucket or breaker.
Third, the setup requires less dedicated transport equipment compared with a conventional piling rig. The supplied comparison also identifies better mobility, lower equipment cost, and greater versatility as key advantages.
What Are the Technical Specifications of the Piling Attachment for Excavator?
The available models cover different excavator weight classes and hydraulic requirements.
| Model | Eccentric Moment | Speed | Excitation Force | Oil Pressure | Oil Flow | Weight | Excavator |
| YG150D | 3.2 kg·m | 2600 rpm | 24 t | 200 bar | 100 lpm | 1.2 t | 8-12 t |
| YG250D | 5.1/5.7 kg·m | 2600 rpm | 38/42 t | 300 bar | 163 lpm | 1.6 t | 20-25 t |
| YG350D | 7.1 kg·m | 2600 rpm | 52 t | 320 bar | 220 lpm | 2.4 t | 25-35 t |
| YG400D | 9.2 kg·m | 2600 rpm | 68 t | 330 bar | 260 lpm | 2.5 t | 35-45 t |
| YG450D | 11 kg·m | 2600 rpm | 81 t | 330 bar | 300 lpm | 2.6 t | 40-55 t |
All five models have a listed speed of 2600 rpm. Excitation force ranges from 24 to 81 tons, while hydraulic oil flow requirements range from 100 to 300 lpm.
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How Do You Match the Excavator Pile Driver to the Carrier?
The excavator weight is one of the main matching references.
The available range starts with the YG150D for 8-12 ton excavators and extends to the YG450D for 40-55 ton excavators.
Hydraulic pressure and oil flow must also match the requirements of the selected model. For example, the YG150D requires 200 bar and 100 lpm, while the YG450D requires 330 bar and 300 lpm.
| Excavator Class | Recommended Model | Excitation Force |
| 8-12 t | YG150D | 24 t |
| 20-25 t | YG250D | 38/42 t |
| 25-35 t | YG350D | 52 t |
| 35-45 t | YG400D | 68 t |
| 40-55 t | YG450D | 81 t |
For an actual configuration, the excavator’s hydraulic system and the site’s soil and pile conditions should be checked together.
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Why Use a Hydraulic Post Driver for Excavator Instead of a Dedicated Rig?
A hydraulic post driver for excavator is useful when the contractor already owns an excavator and needs a piling function without purchasing another dedicated carrier.
The excavator provides mobility around the worksite. The piling attachment provides the high-frequency vibration required for pile driving and extraction.
Compared with a conventional piling rig, the supplied comparison identifies lower cost, easier transportation, better mobility, attachment versatility, and suitability for tighter working areas.
This makes the excavator-based configuration suitable for contractors who need piling capability while keeping the excavator available for other construction tasks.
What Factors Affect Piling Performance?
Operators cannot judge pile driving performance by excitation force alone.
Several factors that engineers need to consider.
- Soil layer
- Soil properties
- Soil moisture content
- Pile type
- Pile structure
- Required penetration conditions
When the soil becomes harder and penetration slows, the excavator can assist by applying pressure through the boom or by lifting and re-driving the pile.
Operators must match the selected model to both the excavator and actual ground conditions.
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Can the Attachment Also Extract Piles?
Yes. The high-frequency vibration principle supports both pile driving and pile extraction.
During extraction, high-frequency vibration reduces the friction between the pile and surrounding soil. Vibration and the excavator work together to pull the pile upward.
The attachment works well for projects that require teams to install and later remove piles.
FAQ About the Hydraulic Post Driver for Excavator
The available models are designed for excavators from 8 to 55 tons, depending on the selected model.
The YG450D provides a listed excitation force of 81 tons.
The models require 100-300 lpm of hydraulic oil flow.
The listed hydraulic oil system pressure ranges from 200 to 330 bar.
The listed applications include U-shaped and I-shaped steel sheet piles, Larssen piles, steel pipe piles, and concrete precast piles up to 10 m long.
Yes. The high-frequency vibration system can be used for both pile driving and pile extraction.
Get the Right Piling Attachment for Excavator
YG piling attachment for excavator provides high-frequency hydraulic vibration for pile driving and extraction while using an excavator as the carrier. Five models cover excavators from 8 to 55 tons, with excitation forces from 24 to 81 tons.
Send us your excavator tonnage, hydraulic pressure, hydraulic flow, pile type, pile length, and soil conditions to confirm the suitable model.
