Application And Working Principle Of Yz-180b Hydraulic Vibratory Pile Hammer

A crane suspended vibratory hammer generates pile-driving force through rotating eccentric weights instead of repeated impact. For the YZ-180B, a 51 kg·m eccentric moment at 1,800 rpm produces a rated centrifugal force of 1,810 kN, with a maximum of 2,340 kN. Actual penetration also depends on amplitude, soil resistance, pile weight, and hydraulic flow.

How the Eccentric System Generates Force

A hydraulic vibratory hammer（YZ-180B） converts hydraulic power into high-speed rotation of eccentric blocks. Their unbalanced mass creates centrifugal force, which passes through the hammer and clamp into the pile.

The basic relationship is:

F = Mω²r

Here, M represents eccentric mass, r represents its effective radius, and ω represents angular velocity. The equation shows that generated force rises as rotational speed increases.

From 51 kg·m to 1,810 kN

1. Eccentric moment: The YZ-180B is rated at 51 kg·m.
2. Rotation: Maximum operating frequency is 1,800 rpm.
3. Rated force: Centrifugal force reaches 1,810 kN.
4. Maximum force: Peak centrifugal force reaches 2,340 kN.

The 51 kg·m value describes rotating mass distribution rather than direct force. When combined with angular velocity, it produces the oscillating force used for pile installation.

Why Frequency and Amplitude Matter

A hydraulic vibro hammer transfers vibration into the pile and surrounding soil. The vibration can reduce pile-soil interface resistance, allowing the pile to move under the combined effect of vibratory force, pile weight, and external pressure.

The YZ-180B lists a maximum amplitude of 32 mm and a maximum line pull of 600 kN, supporting both pile driving and extraction.

Eccentric moment: Defines the rotating imbalance.
Frequency: Determines the number of vibration cycles per minute.
Amplitude: Indicates the displacement of the vibrating system.
Line pull: Determines available extraction force.

Hydraulic Power and Operating Requirements

A hydraulic vibrating hammer requires sufficient oil flow and pressure to maintain the selected operating frequency. The YZ-180B lists maximum oil flow of 680 L/min, while its 600P power pack is specified with up to 630 L/min and 350 bar working pressure.

The hydraulic power source should therefore be matched to flow, pressure, and operating frequency rather than engine output alone.

Crane Suspension and Pile Applications

A vibro hammer crane arrangement allows the hammer to remain suspended from lifting equipment while hydraulic power drives the vibrator. This setup suits sheet piles, tubular piles, and other sections where vibration-based installation fits the soil and project conditions.

A hydraulic vibro hammer can also be configured for extraction. The available clamp arrangement affects gripping stability, load transfer, and suitability for different pile profiles.

The YZ-180B supports single, double, and quadruple clamp configurations, allowing the attachment system to match different pile forms and gripping requirements.

Selecting the Right Working Combination

A hydraulic vibrating hammer should not be selected from centrifugal force alone. The following factors should be checked together:

• Pile section and weight
• Soil resistance and expected penetration
• Required extraction load
• Crane lifting capacity
• Hydraulic flow and pressure
• Clamp type and gripping arrangement

For the YZ-180B, the working combination can be evaluated through several related parameters:

1. 51 kg·m eccentric moment: Defines the rotating imbalance.
2. 1,800 rpm maximum frequency: Controls the vibration cycle rate.
3. 2,340 kN maximum centrifugal force: Defines the upper dynamic force.
4. 32 mm maximum amplitude: Indicates the available vibration displacement.
5. 600 kN maximum line pull: Supports pile extraction duties.

A vibro hammer crane system should therefore be evaluated as a complete installation package, with hammer capacity, pile characteristics, soil conditions, lifting equipment, and hydraulic supply considered together. The YZ-180B is compatible with the 600P Hydraulic Power Pack for Hydraulic Piling Hammer as its hydraulic power source.

Hydraulic Vibro Piling Hammer

Operating Principle

The vibro hammer generates huge vibratory force through the eccentric blocks. The eccentric blocks rotate at a high speed through hydraulic power pack.
And the high-frequency vibration generates the centrifugal force.

This centrifugal force can "liquefy" the soil around the pile so that the pile can fall into the soil under hammer weight or excavator pressure.

Detailed Introduction

Product Features

 EFFICIENCY

Due to the design principle of hydraulic vibro hammer, eccentric blocks of hammer vibrate at a high speed to produce large force. Then vibratory hammer can achieve driving or extracting of piles. It's more efficient and faster than excavator hammer or electric vibro hammer.

 PERFORMANCE

YONGAN hydraulic vibratory hammer uses a special design and production for key components, and provides additional driving and extracting performance on the basis of the world's average pilings.

 LIGHTWEIGHT

Because vibro hammer force comes from power pack, hrdraulic vibro hammer body is very light. For example, YZ-180B uses an embedded motor and its width is only 530mm, weight only 5900kg. It can easily work in a narrow space while max centrifugal force is 2340kN.

 ENVIRONMENTAL

Compared with diesel and automatic hammers, YONGAN hydraulic vibro hammers are green and don't disturb resident. Vibro hammer force directly transfers to pilings. Due to sound-proof design, YONGAN power pack can absorb 75% engine noise and use CAT, Cummins, volvo engine under the national emission standards.

 STABLIZATION

The large capacity cooling system ensures that hydraulic vibro hammer can work efficiently and stably. Even if it keeps working for a long time, there won't be seriously overheated. Besides, gearbox adopts forced lubrication system design, which can not only fully lubricate components but also take away the heat produced by the high-speed operation of the components.

 DURABILITY

YONGAN hammers uses precise workmanship for electric and hydraulic systems including hoses, cables, couplings and other related parts. Thus YONGAN hammers have a long service life with minimal downtime and the whole system is reliable. For wear parts, YONGAN only choose high-quality consumable parts to assure equipments long-term working life to save customers'money.

Equipment Selection Chart

Key Vibration Technology Data and Formula

Piling Project Example for YZ-180B Hydraulic Vibro Pile Driving & Extracting Hammer

Hydraulic Vibro Hammer Piling Project