Design Structure And Application Of Yc-5 Hydraulic Pile Hammer

An offshore pile driving hammer delivers controlled impact energy to piles while maintaining consistent blow rates across varying soil conditions. The YC-5 model uses a 5000 kg ram with a 1200 mm working stroke, generating 60 kNm impact energy at 35‑80 blows per minute. This reduces driving time and provides predictable penetration for marine foundation projects.

Why the YC-5 Design Works for Offshore Piling

Conventional drop hammers rely on cable lifting and manual release, limiting blow rate and energy consistency. The YC-5 hydraulic impact piling hammer uses hydraulic lifting with gravity‑assisted free fall, delivering repeatable impact force. This supports rapid pile penetration while maintaining energy control. Correct hydraulic pressure and nitrogen accumulator settings maintain blow rate across sand, clay, and mixed strata.

How the YC-5 Design Delivers Performance

• ⚙️ Ram weight: 5000 kg generates kinetic energy during free fall.
• 📏 Working stroke: 1200 mm allows gravitational velocity buildup.
• 🔨 Impact energy: 60 kNm transferred through an anvil assembly.
• 🔄 Frequency range: 35–80 blows per minute adapt to soil conditions.

Hydraulic ram acceleration delivers controlled blows, minimizing pile head damage and maximizing soil displacement. As an impact pile driver, this ensures consistent energy per cycle.

Where the YC-5 Fits

The YC-5 offshore pile driving hammer serves concrete piles, steel casing piles, and H‑beam sections in coastal and offshore projects. Marine construction, bridge foundations, and port facilities use impact hammers to penetrate sand, clay, and mixed layers. Impact energy and blow frequency depend on soil density and pile diameter.

Structural Construction and Specifications

The YC-5 impact piling hammer features a welded steel housing with wear‑resistant guide rails and sealed hydraulic components. Its nitrogen‑accumulator circuit stores and releases energy efficiently.

Hydraulic System and Energy Control

The pile hydraulic hammer（YC-5） depends on hydraulic flow rate, accumulator pressure, blow frequency, soil resistance, and stroke. An undersized power pack reduces lift force and blow rate; an oversized unit adds cost without meaningful gain.

What Should Be Checked

1. Soil conditions – Define strata to be penetrated.

2. Pile type – Select concrete, steel, or H‑beam per project.

3. Impact energy – Match to pile size and soil resistance.

4. Blow frequency – Choose 40 bpm or 100 bpm per soil density.

5. Stroke length – Confirm 1200 mm provides sufficient energy.

6. Hydraulic supply – Match flow and pressure to hammer needs.

Fixed Leader vs. Crane‑Suspended Mounting

Fixed leader mounting suits crane‑based vertical driving with precise alignment. Crane‑suspended configuration fits uneven terrain or inclined piles. The YC‑5 supports three mounting options: fixed leader, U‑type leader, and crane‑suspended. Proper selection prevents eccentric loading and aligns impact axis with pile neutral axis.

Offshore and Marine Requirements

Selection must cover soil conditions, pile type, energy, frequency, and hydraulic power supply. The hammer must fit site access, lifting capacity, and weather constraints. A suitable hammer provides required penetration without causing pile stress or equipment strain.

What to Check Before Installation

1. Soil investigation – Confirm soil type and resistance profile.

2. Pile specification – Define diameter, length, and material.

3. Impact energy – Verify energy for target penetration depth.

4. Blow frequency – Select based on soil response.

5. Hammer weight – Ensure 8500 kg matches crane capacity.

6. Hydraulic power – Specify 200P Hydraulic power pack for Hydraulic piling hammer.

A YC‑5 hydraulic impact piling hammer maintains consistent driving performance across varying soil layers. The final configuration matches pile type, soil conditions, energy, frequency, and hydraulic supply. The YC‑5 is commonly paired with a 200P Hydraulic power pack for Hydraulic piling hammer to ensure reliable hydraulic flow and pressure during continuous operation.

Operating Principle

The operating cycle consists of a few parts ram, cylinder, powerpack. It begins with the lifting part of hydraulic cylinder through the energy transmitted from the hydraulic power system. When the hammer ram lifted by the hydraulic cylinder reaches the preset stroke position, the part of piston automatically allows the ram to freely fall under the acceleration of gravity.

And then the hammer ram produces the hitting energy to complete the pile driving process. After impact, the cycle is repeated automatically.

Detailed Introduction

Product Features

ROBUST AND RELIABLE

Solid and simple frame design is the basis for a long working lifetime. Vibration and noise reduction levels are achieved through a special and innovative frame design. Optimal frame weight and balance guarantee high efficiency of the hammer.

STRONG BUT GENTLE

Accurate strokes and balanced hammer block acceleration prevent pile head damage and guarantee a long working lifetime of the hammer.

EASY CONTROL

The ingenious hydraulic and electrical system design allows the impact energy, blow rate and frequency to be easily adjusted according to soil conditions and pile type. YONGAN hammers can also be crane suspended. Different accessories make crane suspension an easy process.

YONGAN HAMMERS ARE GREEN

Hammers are equipped with shut-off valves which prevent oil leakages. Biodegradable oils can be used. All exhaust gas is filtered when YONGAN power packs are used.

NOISE REDUCTION

As a result of sustainable development for a safer and more efficient solution to reduce noise demands, YONGAN has improved structural solutions and accessories, including special drive caps, insulation skirts to significantly reduce noise pollution.

VERSATILITY AND SITES

YONGAN hammers can drive concrete piles, steel piles, straight piles, batter piles, and marine pilings. They are also fit for onshore, offshore, underwater and Wind Power base, bridge construction projects and adapted for all kinds of conditions 

Piling Project Example for YC-5 Hydraulic Impact Pile Driving Hammer Piling Hammer