Ed301/8 Series Electro-hydraulic Thruster

Ed301/8 series is a wet‑type, piston‑type electro‑hydraulic thruster (also called electro‑hydraulic pusher), mainly used as the actuation unit for various industrial drum brakes, wheel brakes, and mechanical holding devices.

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Basic Identification

Model: Ed301/8

Type: Electro‑hydraulic thruster / pusher

Structure: Wet multi‑disc, oil‑immersed motor

Working medium: Special hydraulic oil

Function: Provide pushing force to release brakes

Key Parameters

Rated pushing force: 3000 N

Working stroke: 80 mm

Motor power: Typically matched with standard three‑phase AC 380 V, 50 Hz

Duty cycle: Suitable for frequent starting and long‑time operation

Protection class: IP65 or higher

Working Principle

When energized, the built‑in submersible motor drives an impeller to generate hydraulic pressure.

Hydraulic pressure pushes the piston and push rod to extend outward.

This thrust is used to release spring‑applied brakes.

When de‑energized, hydraulic pressure disappears; the return spring retracts the push rod, allowing the brake to close.

Features

Stable thrust, smooth action, low noise

Suitable for high‑frequency operation

Good sealing, long service life, maintenance‑free

Normally matched with YWZ, YWZ9, YFX series brakes

Reliable performance in harsh industrial environments

Applications

Used as the driving element for various electro‑hydraulic drum brakes

Hoisting machinery, cranes, port machinery, metallurgical equipment

Any mechanism requiring electro‑hydraulic actuation and release

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Short version 

Ed301/8 series electro‑hydraulic thrusters are wet‑type hydraulic pushers with 3000 N thrust and 80 mm stroke, used to actuate and release industrial brakes for cranes and heavy machinery.

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