ED Hydraulic Thruster: All-Weather Heavy-Duty Brake Power Unit For Cranes & Ports

 

 

Core Competitive Advantages

German standard non-immersed F-class motor + aluminum alloy body (Core Highlight)

Adopt non-immersed motor structure, stator winding completely separated from hydraulic oil, eliminate oil aging leading to coil burnout fault, F-class insulation withstand high temperature continuous operation. Cast aluminum alloy shell is lighter than traditional cast iron, excellent heat dissipation and salt fog anti-corrosion performance, ideal for coastal port and high-temperature metallurgical harsh environments.

Built-in balance air chamber, 0–180° arbitrary multi-angle installation

Unique balance air chamber design on cylinder body, no matter vertical, horizontal or inclined mounting angle, internal oil pressure remains balanced without air lock failure, solve installation space limitation pain point of old YT1 thrusters, fit narrow crane undercarriage layout and complex mechanical structure transformationHuawu.

Double-layer full sealing structure, long-term zero oil leakage

Push rod surface adopts special hardening anti-wear treatment, matched double composite sealing ring; IP65 fully sealed junction box with cable waterproof gland, prevent dust, rain, salt mist invading internal components, no frequent oil refilling and seal replacement maintenance work.

Smooth low-noise high-frequency continuous operation

Hydraulic centrifugal pump stable pressure output, no rigid impact vibration during push rod extension & retraction, low running noise. Support long-time frequent start-stop cycle, no overheating attenuation of thrust, adapt 24h unmanned port yard and bulk material stockyard working conditions.

Optional limit switch safety interlock function

Can equip upper limit switch (brake open signal) + lower limit switch (brake closed signal), real-time transmit working status to PLC control cabinet, realize full safety interlock with crane travel system, avoid equipment traveling with brake clamped and cause collision accidents.

Complete specifications & wide matching range

Full model series ED23/5, ED30/5, ED50/6, ED80/6, ED121/6, ED301/6, ED450/8 cover small to super large thrust stroke demands. Directly match all domestic mainstream drum brakes, rail clamps, wheel windproof brakes without bracket modification. Explosion-proof flameproof versions customized for chemical and underground coal mine hazardous zones.

Main Application Scenarios

Brake drive: YWZ/YWR drum brakes, YFX/ZYTJ/YJGQ rail clamps, YLZ hydraulic wheel brakes, port storm windproof braking systems

Other mechanical drive: Industrial regulating valves, sluice gates, material clamping devices, <90° swing positioning mechanisms

Equipment matching: RMG/RTG container gantry cranes, stacker-reclaimers, ship unloaders, metallurgical transfer trolleys, mining belt conveyors, construction lifting winches

Working Condition Parameters

Executive standard: German DIN15430, JB/T10603-2006

Shell material: Cast aluminum alloy, protection grade IP65

Motor type: Non-immersed F-class insulation AC motor

Installation angle: 0°~180° arbitrary mounting via built-in balance air chamber

Optional accessory: Upper/lower travel limit switches, explosion-proof flameproof motor

Ambient adaption: -20℃ ~ +50℃, coastal salt fog, mine dust, high-temperature metallurgical workshop environment

Core function: Electro-hydraulic brake release drive, valve/gate/clamping mechanism power actuator

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