EP Series Resonance-Free Variable-Frequency and Variable-Moment Electric Vibro Hammers

Typical Models

EP800, EP1100, EP1600 and other heavy-duty resonance-free variable-frequency and variable-moment electric vibro hammers.

Key Technical Range

• Motor power: approximately 600–1,200 kW
• Maximum eccentric moment: approximately 1,120 kg·m
• Maximum vibration frequency: approximately 750 r/min
• Maximum centrifugal force: approximately 350–700 t
• Maximum extraction capacity: approximately 180–360 t
• Maximum no-load amplitude: approximately 18.2 mm

Technical Capabilities

The EP series uses adjustable eccentric-moment and variable-frequency control to match vibration output to pile type, ground conditions, and different construction stages. During start-up and shutdown, the eccentric moment can be reduced to a low or near-zero level to minimize the mechanical resonance typically associated with conventional vibro hammers.

The series can be integrated with hydraulic clamps for large-diameter steel pipe piles, offshore installation platforms, and different lifting systems, with project-specific support for hammer selection, clamp configuration, pile-soil analysis, and operating parameter matching.

Representative Applications

• Offshore Wind Foundations

EP1600 has been used for positioning pile installation at the Three Gorges Yangjiang offshore wind project and is applicable to offshore wind monopiles, jacket auxiliary piles, and large marine steel pipe pile foundations. EP series equipment has also been applied to offshore wind projects in Jieyang Shenquan, Xuwen, Guanyun, Rudong, Jiaxing, Dalian Zhuanghe, and Danzhou.

• Offshore Photovoltaic Foundations

EP270 and EP320 vibro hammers have been applied to offshore photovoltaic pile foundation works in Ningde.

• Cross-Sea and Major Transportation Infrastructure

EP800 has been applied to large-diameter interlocking steel pipe piles on the Shenzhen-Zhongshan Link.

• Marine Platforms and Inclined Piles

EP800 has been used for inclined pile installation at a marine monitoring platform in Tianjin Binhai.

• Onshore Wind and PHC Piles

EP400A has been applied to PHC pile installation for an onshore wind power project in Inner Mongolia.

• Low-Impact Urban Construction

Resonance-free vibro hammers have been used for urban pile construction near Shanghai Nanpu Bridge, where vibration impact on the surrounding environment is a key consideration.

• Special Pile Types

EP240 and EP200 vibro hammers have been used for U-shaped concrete sheet piles and other U-shaped pile applications.

Engineering Support

Project-specific support includes vibro hammer and clamp selection, pile-soil analysis, constructability assessment, vibration parameter matching, and on-site technical support based on pile diameter, pile length, ground conditions, installation platform, target penetration depth, and project schedule.

典型型号 / Typical Models

EP800、EP1100、EP1600 等大型免共振变频变矩电驱振动锤。

主要技术范围 / Key Technical Range

• 电机功率：约 600–1200 kW
• 偏心力矩：最高约 1120 kg·m
• 最大振动频率：约 750 r/min
• 最大激振力：约 350–700 t
• 允许最大拔桩力：约 180–360 t
• 空载振幅：最高约 18.2 mm

技术与工程适应性 / Technical Capabilities

EP 系列采用可调偏心矩及变频控制技术，可根据桩型、地层条件和施工阶段动态调整振动输出。设备启停阶段可将偏心矩降至较低或接近零的状态，以减少传统振动锤启停过程中的机械共振影响。

系列产品可与大直径钢管桩液压夹具、海上施工平台及不同起重设备配套，并可结合项目条件进行振动锤选型、夹具配置、桩土参数分析及施工参数匹配。

代表性应用 / Representative Applications

• 海上风电基础施工

EP1600 已用于三峡阳江海上风电稳桩平台定位桩等项目，可服务于海上风电单桩、导管架辅助桩及大型海上钢管桩基础施工。EP 系列还应用于揭阳神泉、湛江徐闻、灌云、如东、嘉兴、大连庄河及海南儋州等海上风电项目。

• 海上光伏桩基础

EP270、EP320 等设备应用于宁德海上光伏项目，满足海上光伏平台桩基的振动沉桩需求。

• 跨海及大型交通基础设施

EP800 应用于深中通道大直径锁扣钢管桩施工，体现了大型钢管桩和复杂海洋基础条件下的工程适应性。

• 海洋平台及斜桩施工

EP800 用于天津滨海海洋生物监测平台斜桩施工，可适应非垂直桩体及海洋平台基础施工场景。

• 陆上风电及 PHC 管桩

EP400A 应用于内蒙古陆上风电 PHC 管桩施工，将 EP 系列的应用拓展至陆上新能源基础工程。

• 城市低影响施工

免共振振动锤应用于上海南浦大桥周边市区桩基施工，适用于对周边环境影响和振动控制要求较高的城市施工场景。

• 特殊桩型施工

EP240、EP200 等设备可用于 U 型混凝土板桩、U 型板桩等特殊桩型施工。

工程支持 / Engineering Support

可根据桩径、桩长、地层条件、施工平台、目标贯入深度及工期要求，提供振动锤与夹具选型、桩土参数分析、施工可行性评估、振动参数匹配及现场技术支持。