EMG ELDRO® – New Generation
EMG ELDRO® – Next Generation Electrohydraulic Thruster
The EMG ELDRO® Series ED represents the latest evolution in electrohydraulic thruster technology, setting industry standards for safety, reliability, and performance in demanding applications. Backed by over 90 years of engineering experience and more than two million units produced, EMG ELDRO® thrusters are trusted across industries such as ports, steel and metallurgy, mining, and raw material extraction.
Core Features
- Integrated failsafe principle: In case of fault or power outage, the brake automatically closes, ensuring the highest level of safety for load control.
- Compact, self-contained hydraulic unit design—easy to install and maintain, with all elements of the actuation system integrated.
- Energy-efficient operation with IE4-class asynchronous motors—significantly reducing power consumption during operation.
- Wear-free, self-lubricating system ensures long service life and reduced maintenance intervals.
- Large standard temperature range from -25 °C to +50 °C; expandable to -45 °C to +80 °C for extreme environments.
- High switching frequency—up to 2,000 cycles/hour (mode S3).
- Linear and shock-free lifting and lowering thanks to the hydraulic principle.
- Compatible with mineral or silicone hydraulic oils for tailored use in different temperature or environmental conditions.
- Protection class IP66 as standard (IP68 for underwater applications optional).
- Robust corrosion protection with paint layers up to class C5-M according to DIN EN ISO 12944-5.
Advantages for Industrial Brake Systems
- Maximum operational reliability due to the purely mechanical design; no sensitive electronic controls required.
- Soft, safe, and controlled braking for drum and disc brake systems—ideal for industrial brake thruster applications.
- Short setup times and easy integration into new or existing thruster brake systems.
- Permits external limitation of stroke and adjustable extension of lifting/lowering times by externally accessed valves.
- High resistance to voltage fluctuations, as speed is frequency dependent.
- Extensive auxiliary options: brake spring integration, multi-format limit switches (mechanical, inductive, magnetic), as well as position monitoring for predictive maintenance.
- Customizable mounting (foot mounting rotatable by 90°), paint, and electrical configurations to match any industrial requirement.
Technical Overview
| Type | Lifting force [N] | Stroke path [mm] | Power consumption [W] | Current at 400V/50Hz [A] | Switching frequency (S3) [c/h] | Weight [kg] |
|---|---|---|---|---|---|---|
| ED 120 | 120 | 40 – 50 | 95 | 0.25 | 2,000 | 9.5 |
| ED 220 | 220 | 50 | 103 | 0.25 | 2,000 | 9.5 |
| ED 300 | 300 | 50 – 60 | 117 | 0.30 | 2,000 | 17 |
| ED 500 | 500 | 50 – 60 | 167 | 0.35 | 2,000 | 17 |
Typical Applications
The EMG ELDRO® Series ED electrohydraulic thruster is the proven solution for modern electro hydraulic brake thruster systems in cranes, conveyors, steel mills, mining and material handling installations where reliability and safe operation are critical.
Description
