Ed121/8 series is a wet‑type, enclosed electro‑hydraulic thruster (electro‑hydraulic pusher), mainly used as the actuating device for various electro‑hydraulic drum brakes and disc brakes.
Basic Identification
Model: Ed121/8 Series
Type: Electro‑hydraulic thruster / pusher
Structure: Fully enclosed, oil‑immersed wet type
Application: Actuator for industrial brakes
Key Parameters
Rated thrust: 1200 N
Working stroke: 80 mm
Standard power supply: Three‑phase AC 380 V, 50 Hz
Protection class: IP65
Insulation class: F
Working Principle
When energized, the submersible motor drives the impeller to build hydraulic pressure, extending the push rod to release the brake.When de‑energized, hydraulic pressure dissipates; the return spring retracts the push rod, allowing the brake to engage automatically.
Main Features
Stable thrust, smooth action, low noise
Good sealing, long service life
Suitable for frequent starting and heavy‑duty operation
Compact structure, easy installation and maintenance
Universal matching with various brake models
Typical Applications
Electro‑hydraulic drum brakes (YWZ series, YW series, etc.)
Electro‑hydraulic disc brakes
Hoisting, metallurgical, port and conveying machinery
Short version
Ed121/8 series electro‑hydraulic thrusters are wet‑type hydraulic pushers with 1200 N thrust and 80 mm stroke, used as the release actuator for industrial electro‑hydraulic brakes.
