ELDRO®classic ELECTRO HYDRAULIC THRUSTERS SERIES ED
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ELECTRO HYDRAULIC THRUSTERS SERIES ED THE ORIGINAL. BE SAFE.

ELECTRO HYDRAULIC THRUSTERS For 70 years, EMG Automation GmbH has been developing and producing drive systems for industrial brakes in a wide range of industrial applications, from low ambient temperatures to extremely harsh environments. The customer benefit arises due to the combination of long-term experience with industrial strength, efficient solutions, outstanding logistics and top quality standards. EMG offers its customers uncompromising reliability coupled with intelligent innovation. In production, EMG greatly values the highest possible manufacturing quality in order to ensure...

ELEKTROHYDRAULISCHE ELECTRO HYDRAULIC HUBGERÄTE ELDRO® THRUSTERS ELDRO® FUNCTION AND ADVANTAGES MODE OF OPERATION All elements of a hydraulic actuation system are combined in the ELDROclassic® to produce a compact assembly. When switched off, the hydraulic piston with the piston rod is located in its bottom limit position. When switched on, the hydraulic pump pumps the operating fluid beneath the piston and in doing so generates the hydraulic pressure here. This moves the piston up to the maximum stroke path. When doing so, the counterforce – which is generated through an integrated brake...

CHARACTERISTIC FEATURES The electro hydraulic system of the ELDROclassic® thrusters, in conjunction with the straightforward integration in brake systems and the simple electrical start-up, result in the following features under the diverse application conditions: ¡ igh operational safety H ¡ ong service life due to wear-free work under L constant self-lubrication ¡ oft and impact-free mode of operation, as a S systemic result of the hydraulic working principle ¡ Short actuating times ¡ Approved continuous operation S1 ¡ igh switching frequency of up to 2,000 H cycles per hour in switching...

ELEKTROHYDRAULISCHE ELECTRO HYDRAULIC HUBGERÄTE ELDRO® THRUSTERS ELDRO® PRESSURE STRAP PISTON ROD PROTECTIVE TUBE REDUNDANT DUST PROTECTION SEAL REDUNDANT SEAL TO THE HYDRAULIC CHAMBER HYDRAULIC CYLINDER PISTON OIL GUIDE RING HYDRAULIC PUMP REDUNDANT MOTOR SHAFT SEAL TERMINAL BOX THREE-PHASE ASYNCHRONOUS MOTOR, 2-POLE BASE FASTENING  Auxiliary equipment

Ed THRUSTER OVERVIEW CHARACTERISTIC FEATURES The electro hydraulic system of the ELDROclassic® thrusters, in conjunction with the straightforward integration in brake systems and the simple electrical start-up, result in the following features under the diverse application conditions: cycles per hour in switching operation S3 ¡ rbitrary direction of motor rotation, meaning no A changeover contactors required ¡ Reversing operation without limitations ¡ Easy to install and de-install ¡ ong service life due to wear-free work under L constant self-lubrication ¡ Overloading not possible during...

ELEKTROHYDRAULISCHE HUBGERÄTE ELDRO®

All dimensions in mm B = stroke path (variable) |  E convertible to E1 by removing the clampi

ELEKTROHYDRAULISCHE HUBGERÄTE ELDRO® Short stroke thrusters Ed 30/… Long stroke thrusters Ed 50/… All dimensions in mm B = stroke path (variable) |  E convertible to E1 by remov

Short stroke thrusters Ed 121/… Long stroke thrusters Ed 121/… All dimensions in mm B = stroke path (variable) | * fr

ELEKTROHYDRAULISCHE HUBGERÄTE ELDRO® GENERAL INFORMATION ¡ or device key data see device type plate F ¡ he devices are delivered ready for operation, T filled with operating fluid ELECTRICAL CONNECTION ¡ he connection diagram can be found in the terT minal box cover ¡ otor is voltage interchangeable for delta () or M star (Y) switching ¡ he devices exhibit star (Y) switching when deliT vered. Phase sequence arbitrary with connection TERMINAL BOX COVER CONNECTION DIAGRAM ¡ The pivoting of the device must be ensured at the installation into the brake ¡ There must be no transverse forces on...

ELECTRICAL & MECHANICAL VERSION MOTOR ¡ Three-phase asynchronous motor, 2-pole ¡ For power data see “Technical values” ¡ erminal board 6-pole, with thrusters with heating T ¡ Standard insulation per insulation class F ¡ Supply line connection M4 ¡ Special version in insulation class H ¡ Internal protective conductor connection: M4 ¡ External protective conductor connection: M6 VOLTAGES AND FREQUENCIES ¡ tandard: S 230/400 V, 50 Hz, 3 ~ 290/500 V, 50 Hz, 3 ~ 400/690 V, 50 Hz, 3 ~ ¡ pecial versions 110 V to 690 V, 3 ~, S 50 Hz and 60 Hz possible ¡ All thrusters are star (Y) connected on...

ELEKTROHYDRAULISCHE ELECTRO HYDRAULIC HUBGERÄTE ELDRO® THRUSTERS ELDRO® ELECTRICAL & MECHANICAL AUXILIARY EQUIPMENT POSITIONING MEASURING SYSTEMS ¡ nalogue measuring systems for monitoring the A entire stroke path ¡ Version dependent on the stroke path MECHANICAL ANALOGUE LIMIT SWITCHES ¡ ll ELDROclassic® devices can be fitted with mechanA ical or inductive limit switches for the electrical display of the air and brake setting. ¡ etailed information is available in the data sheet D

ELECTRICAL & MECHANICAL AUXILIARY EQUIPMENT DAMPING SPRING (D-SPRING) BRAKE SPRING (C-SPRING) ¡ amping of the load change when closing and D ¡ ntegrated C-spring for generating the brake I force. The specified brake force of the C-spring is reached at 1/3 of the nominal stroke. ¡ he D-spring is only effective in conjunction with a T C-spring. ¡ ith the installation of the D-spring, it is not possiW ble to fit a limit switch. ¡ he installation length “A” of the device does not T change. ¡ hen specifying the working point of the brake, W dimension “z” must be taken into account (see device...

ELEKTROHYDRAULISCHE HUBGERÄTE ELDRO® LIFTING AND/OR LOWERING VALVE (H, S, HS) ¡ he lifting and lowering times can be steplessly exT tended with an integrated lifting and/or lowering valve. The adjustable minimum values attain 10 to 20-times the normal values. ¡ ith ambient temperatures below – 25 °C W and use of the standard operating fluid, the ELDROclassic® thruster must be equipped with low temperature heating. ¡ ntegrated valves in “open position” result in an exI tension of the lifting and lowering times with short stroke thrusters of up to approx. 0.1 to 0.2 seconds, and with long...