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DZ Series Variable Frequency Electric Vibro Hammer
The SEMW DZ Series Electric Driven Vibro Hammer uses a variable-frequency electric drive and eccentric vibration mechanism for pile driving in foundation and marine construction. The series includes DZ300, DZ400, DZ500 and DZ600, with rated motor powers from 300 to 600 kW.
Compare operating parameters, vibration-control technology and equipment dimensions before selecting a model for your pile type and jobsite conditions.
DZ Series product illustration supplied for this page.Product Overview
Unlike a diesel impact pile hammer, the DZ Series generates vibratory excitation through an electrically powered eccentric mechanism. Variable-frequency control supports smooth start-up and shutdown, while the vibration isolation structure helps limit vibration transmission to the lifting arrangement.
Variable-Frequency Control
Frequency conversion allows controlled start-up and shutdown and adjustment of vibration-related operating parameters.
High Eccentric Moment
The four models provide maximum eccentric moments from 4,000 to 7,000 N·m and different exciting-force ratings.
Lubrication & Cooling
Forced lubrication and external cooling help manage bearing and transmission temperatures during extended operation.
Technical Specifications — DZ300 / DZ400 / DZ500 / DZ600
Compare four DZ Series models by motor power, exciting force, eccentric moment, operating frequency, pulling-force allowance and equipment dimensions to identify a suitable configuration for your pile-driving project.
| Parameter | Unit | DZ300 | DZ400 | DZ500 | DZ600 |
|---|---|---|---|---|---|
| Motor rated power | kW | 300 | 400 | 500 | 600 |
| Maximum eccentric moment | N·m | 4,000 | 5,000 | 6,000 | 7,000 |
| Vibrational frequency | rpm | 580 | 560 | 610 | 620 |
| Exciting force | kN | 1,500 | 1,800 | 2,500 | 3,000 |
| No-load acceleration | g | 7.6 | 7.6 | 9.3 | 9.7 |
| No-load amplitude | mm | 20.4 | 21.8 | 22.3 | 22.6 |
| Allowable pulling force | t | 100 | 120 | 180 | 230 |
| Working mode | — | Variable frequency | Variable frequency | Variable frequency | Variable frequency |
| Total mass | kg | 30,000 | 34,000 | 45,000 | 50,000 |
| Dimensions (L × W × H) | mm | 2561 × 2515 × 5350 | 2561 × 2650 × 5350 | 2900 × 2650 × 6037 | 3000 × 2838 × 6440 |
Vibration Control and Key System Design
Vibration Isolation
The box-type isolation assembly is designed to help limit vibration transmission from the excitation unit to the suspension arrangement.
Electric Motor and Drive
A vibration-resistant electric motor drives the eccentric mechanism. The frequency-conversion system controls start-up, shutdown and operating adjustments.
Monitoring & Protection
The control system monitors electrical and operating parameters, while the external cooling equipment includes alarm and protection provisions.
The combined forced-lubrication and external cooling arrangement supports thermal management during extended operations. Continuous working periods depend on the selected configuration, maintenance and jobsite conditions.
Foundation and Marine Construction Applications
The DZ Series is used for vibratory pile-driving operations in foundation works, bridge construction and marine engineering. These site photographs illustrate typical operating environments, while equipment selection should be matched to the pile configuration and ground conditions.
Marine foundation construction using vibratory pile-driving equipment.
Marine Pile Installation
Potential use in marine foundation operations, subject to pile dimensions, wave conditions, lifting system and soil resistance.
Bridge and Infrastructure Foundations
Equipment can be evaluated for vibratory pile driving associated with large infrastructure and bridge projects.
Ground Improvement Works
Can be evaluated for selected ground improvement and gravel-pile operations where vibratory equipment is specified by the construction method.
How to Select a DZ Series Vibro Hammer
Define the pile
Confirm pile type, cross-section, mass, length and installation method.
Check site conditions
Review ground strata, water conditions, nearby structures and vibration restrictions.
Compare models
Check rated motor power, exciting force, eccentric moment, mass and dimensions.
Verify configuration
Confirm available electric supply, crane capacity, suspension, clamp and accessories.
For example, DZ300 and DZ400 have lower rated motor powers and equipment masses than DZ500 and DZ600. This is a capacity comparison, not a claim that one model is suitable for any particular pile size or depth without engineering review.
Frequently Asked Questions
What is the difference between DZ300, DZ400, DZ500 and DZ600?
DZ300, DZ400, DZ500 and DZ600 differ in rated motor power, maximum eccentric moment, exciting force, vibration frequency, allowable pulling force, operating mass and dimensions. Compare the specifications above when choosing a model.
Is the DZ Series a diesel impact hammer?
No. The DZ Series described here is an electric driven vibratory hammer with variable-frequency control; it should not be confused with SEMW's D Series diesel impact pile hammers.
What does the variable-frequency system do?
The variable-frequency system regulates the start-up and shutdown sequence and supports operating adjustments to reduce resonance-related effects during transitions.
Can the DZ Series be used for marine foundation projects?
Yes. The DZ Series can be evaluated for marine foundation and bridge construction. Model selection depends on pile geometry, seabed conditions, lifting equipment, power supply and jobsite restrictions.
How do I choose the right DZ model?
Submit your pile size and type, expected driving depth, geotechnical information, jobsite location and available crane/power configuration to SEMW for technical selection.
Technical Enquiry
For equipment selection and configuration support, contact Shanghai Engineering Machinery Co., Ltd. (SEMW) with your pile dimensions, soil conditions, planned installation depth, available lifting equipment and power supply. Contact SEMW to discuss your project requirements.
