YG resonance-free series crane suspended vibratory hammer is a very efficient and environmentally friendly piling equipment, especially its resonance-free characteristics, which effectively reduce the impact on the surrounding construction environment, and is an effective tool for construction in downtown urban areas. Yugong hydraulic vibratory hammer is equipped with a power pack adopting well-known brands of spare parts, such as Cummins & Weichai engine, Rexroth pump, FAG bearing, and so on, to ensure high quality and stable performance.
Hydraulic Vibratory Hammer Parameter
|
Model |
YG-28RF |
|
Eccentric Moment |
0~28kgm |
|
Frequency |
2300rpm |
|
Max Centrifugal Force |
1630KN |
|
Max Line Pull |
400KN |
|
Max Amplitude |
15mm |
|
Max Oil Flow |
592L/min |
|
Size W/O Clamp |
2860*880*2620mm |
|
Total Weight |
6500Kg |
|
Power Pack |
600P |
|
Single Clamp |
ATJ-200 |
|
Double Clamp |
ATJ-120*2 |
|
Hydraulic Power Pack |
|
|
Power pack model |
600P |
|
Engine type |
Cummins |
|
Max power |
410KW, 550Hp |
|
Max frequency |
1900rpm |
|
Working pressure |
35Mpa, 350Bar |
|
Max oil flow |
684L/min |
|
Weight |
7600Kg |
|
Size |
4190*1600*2542mm |
|
Diesel tank capacity |
700L |
|
Oil tank capacity |
1424L |
|
Vibrator model |
YG-180,YG-200HF, YG-24RF, YG-28RF, |
Application of Resonance Free Hydraulic Vibro Hammer
Urban Construction
Subway station retaining structures (steel sheet piles), deep foundation pit shoring, and bridge maintenance pile construction.
01
Marine and Hydraulic Engineering
Sheet pile wall construction and demolition for docks, breakwaters, and dry docks.
02
Infrastructure Development
Foundation piles for highway and railway noise barriers, temporary support piles.
03
Sensitive Area Construction
Reinforcement or new construction projects adjacent to operational tunnels, pipelines, and historic buildings.
04
Pile Extraction
Efficient, low-disturbance removal of temporary engineering piles, particularly suited for steel sheet pile recycling.
05

Working Principle of Hydraulic Vibratory Hammer
The most significant difference from traditional vibratory hammers lies in their ingenious design that eliminates harmful horizontal vibration transmission.
1. Dual-axis (or multi-axis) counter-rotation:
The device houses at least two shafts equipped with eccentric weights, driven by high-performance hydraulic motors to rotate synchronously at identical speeds but in opposite directions.
2. Self-balancing centrifugal force:
- When a single eccentric shaft rotates, it generates a powerful unidirectional centrifugal force (excitation force), causing intense horizontal vibration of the machine body.
- When both shafts rotate synchronously in opposite directions, the centrifugal forces they produce horizontally are constantly equal in magnitude and opposite in direction, canceling each other out.
- Vertically, the centrifugal forces from both shafts combine to form a powerful, directional vertical vibratory force.
3. Results:
- Effective Vibration: The powerful vertical vibratory force is entirely utilized to drive pile bodies (e.g., steel pipe piles, sheet piles, concrete piles) into or out of the ground, liquefying the soil and significantly reducing lateral friction resistance.
- Harmless: Theoretically, the horizontal forces transmitted to the frame and crane approach zero, protecting the main equipment. More importantly, horizontal vibration waves are virtually not transmitted to the surrounding strata, preventing damage to nearby buildings, underground pipelines, or sensitive equipment.

Advantages of YG Hydraulic Vibratory Hammer
1. Environmentally Friendly with a Wide Application Range
- Safe operation in restricted zones such as city centers, areas near historic buildings, subway tunnels, hospitals, and precision instrument laboratories.
- Relatively low noise levels (compared to pile hammers) meet stringent municipal construction environmental requirements.
2. Efficient Construction
- High vibration force enables rapid pile driving/extraction with superior efficiency.
- Suitable for various pile types (steel pipe piles, H-beams, sheet piles, precast concrete piles, etc.) and complex soil conditions (sand layers, clay layers, etc.).
3. Protects Host Equipment
Horizontal forces are balanced, reducing fatigue loads on the crane (as the host machine), ensuring stability and extending service life.
4. Intelligent Control
- Modern non-resonant hammers typically feature advanced electro-hydraulic control systems. They enable stepless adjustment of frequency and eccentric torque (amplitude), achieve "soft start/soft stop," and optimize construction parameters for different soil conditions and pile types.
- Equipped with fault diagnosis and real-time monitoring capabilities.
User Evaluation

Markus Schmidt
Eletrobras (Brazil)

Sophia Carter
NextEra Energy (USA)

Nguyễn Văn Hiếu
EVN (Vietnam)
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Henan Yugong Machinery Co., Ltd. is a large machinery manufacturing enterprise that focuses on research and development, production, and sales of mining, construction, sandblasting equipment, and so on.
We believe that good quality can give us survival, thus we only provide you with top products. All the products with high quality meet international standards and are highly valued by all clients at home and abroad.
All the staff in our company are professionally trained, so we can recommend the most appropriate equipment. Every machine will be strictly examined before delivery. Any questions about the machine will be answered within 24 hours. Welcome to our new client!

01
High Quality
Each equipment will be debugged and tested before leaving the factory, and top-grade raw materials.
02
Advanced Equipment
Combining customer feedback and the latest technology to produce the most convenient equipment.
03
Professional Team
Professional pre-sales, sales, and after-sales services, so you don't have to worry about the future.
04
Custom Service
Support private customization and special demand design to facilitate market promotion.

