EMG Automation Brake Thrusters and Strip Guiding Systems
EMG Automation GmbH (Wenden, Germany, founded in 1946) builds ELDRO and ELHY electrohydraulic thrusters, actuators, strip guiding and quality assurance systems for metal strip lines. A company of elexis.group.
ELDROclassic Electrohydraulic Thrusters
In an ELDROclassic thruster all elements of the hydraulic actuation system form one compact unit: when switched on, the pump delivers fluid under the piston and lifts the rod to release the crane brake. It has a DIN motor and low-temperature heating; every unit passes a function and endurance test.
- Overhead and port crane brakes
- Standard DIN motor
- Function and endurance test of every unit
- Exchange units Ed 30/5 to Ed 301/12.1
ELDRO New Generation and ELDRO DC Thrusters
ELDRO New Generation combines the ELDRO and ELHY series: fewer sizes, faster cycle times and inner position displays. The basic function is purely mechanical, with no electric valves. ELDRO DC units run on DC mains and can release a brake from a battery when three-phase power fails.
- No electric valves in basic function
- Inner position display
- DC: wired in parallel with motors
- DC: brake release from a battery
ELDRO Ex Explosion-Proof Thrusters
ELDRO Ex units serve explosive atmospheres in chemical and petrochemical plants, oil and gas production and mining. Marking is I M2 for mining, II 2G for zones 1 and 2 and II 2D for zones 21 and 22, under ATEX BVS 05 ATEX E 074 X and IECEx BVS 12.0014X. Ambient range is -40 to +60 °C.
- Groups I M2, II 2G, II 2D
- ATEX BVS 05 ATEX E 074 X
- Ambient -40 to +60 °C
- 660/1140 V mains option
ELHY Electrohydraulic Thrusters
ELHY units come in three series with the same principle and design for steelworks and mining. The three-phase squirrel-cage motor runs under transformer oil, so there are fewer seals, and protection up to IP68 allows underwater operation. The ambient range is -45 to +80 °C, in DIN and TGL versions.
- Three series, one design
- Protection up to IP68
- Ambient -45 to +80 °C
- Position indicator, DIN and TGL
HKAL and ESSE Actuators, BRAKEMATIC Brake Control
Electrohydraulic actuators based on ELDRO and ELHY act in 0.4 to 1 s at 60 mm stroke, up to 2000 cycles per hour, with position feedback to the PLC via inductive limit switches. ESSE opens DN 120/150/200/250 valves in wastewater plants. BRAKEMATIC uses a frequency inverter to control braking.
- 0.4–1 s at 60 mm stroke
- Up to 2000 cycles per hour
- ESSE valves DN 120/150/200/250
- BRAKEMATIC: pedal P, ramp R
Strip Guiding and Centring Systems
The system keeps a metal strip in the line centre or a defined position. Optical, inductive and radar sensors find edge and centre; EMG-Vivaldi measures through a furnace wall. The iCON XE controller has 10 digital inputs and outputs, 4 analogue inputs, 3 outputs and a servo valve amplifier.
- Approx. 1500 systems a year
- iCON XE controller
- iCON VS panel, IP66 front
- HR/HA power units, ESZ cylinder
IMPOC, SORM, eMASS, SOLID and iCAM Strip Quality Systems
IMPOC measures tensile and yield strength of steel strip 0.15 to 3.0 mm thick at 6 to 900 m/min without destructive tests. SORM measures roughness from Ra 0.3 µm at a 25 mm working distance, eMASS stabilises the strip with electromagnets in hot-dip coating, and iCAM and BREIMO measure strip width.
- IMPOCpro: 0.15–3.0 mm, 6–900 m/min
- SORM: roughness from Ra 0.3 µm
- SOLID: oil film 0.1–6 g/m²
- iCAM: width accuracy up to ±0.1 mm
Selecting an EMG Thruster
The thruster type follows the installation conditions: ELDROclassic with a DIN motor and low-temperature heating for overhead and port crane brakes, ELHY with the motor under transformer oil and protection up to IP68 for steelworks and mining at -45 to +80 °C, and ELDRO Ex for explosive zones 1, 2, 21 and 22.
Old EMG, AEG and Siemens thrusters are replaced one-to-one with the current series by nameplate; exchange units Ed 30/5 to Ed 301/12.1 are built as special thrusters to the assembly dimension of the former Ed 11 to Ed 300/12. ELDRO DC serves DC mains and battery brake release.
Equipment for Strip Processing Lines
A strip guiding system combines optical, inductive or EMG-Vivaldi radar sensors, the iCON XE controller with IO, IS and SV modules, the iCON VS panel and actuators: HST hydraulic control, HR/HA power units, servo valves and ESZ cylinders.
Quality assurance uses IMPOC for tensile and yield strength, SORM for roughness to DIN EN 10049 and SEP 1941, SOLID for oil film from 0.1 to 6 g/m², iCAM and BREIMO for strip width and eMASS for strip stabilisation in hot-dip coating.
EMG Automation and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of EMG Automation and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
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Documents and sources
- EMG Automation home page
- EMG company profile and history
- EMG manufacturing capabilities
- EMG service
- EMG repair request
- EMG field service
- Exchange of ELDRO and ELHY thrusters
- EMG spare parts enquiry
- ELDRO and ELHY service flyer
- ELDRO and ELHY exchange flyer
- ELDRO exchange units ordering instructions
- ELDRO and ELHY thrusters and actuators
- ELDROclassic thruster
- ELDRO New Generation thruster
- ELDRO DC thruster
- ELDRO Ex explosion-proof thruster
- ELHY thruster
- HKAL electrohydraulic actuators
- ESSE quick response actuator
- BRAKEMATIC brake control
- Strip guiding solutions
- Strip guiding sensors
- iCON control electronics
- Strip guiding actuators
- IMPOC tensile and yield strength
- SORM roughness and waviness
- eMASS strip stabilisation
- SOLID oil film measurement
- iCAM width measurement
- BREIMO width measurement
