Heavy-Duty YW Series Drum Brake, Adjustable Braking Torque For Overhead Gantry Crane & Port Trolley

YW Series Electro-hydraulic Drum Brakes

YW series electro-hydraulic drum brakes include mainstream models YWZ4 and upgraded YWZ8, complying with national industrial braking standards. They are spring-applied fail-safe braking devices widely used for overhead cranes, gantry cranes, port trolleys, metallurgical transfer vehicles, mining conveyors and tower cranes.Working principle: Energize the matched electro-hydraulic thruster to compress the braking spring and release the brake; once power fails, the preloaded spring instantly pushes brake shoes to clamp the brake drum to realize safety locking and prevent load slipping.

Core Advantages

Two mainstream series for different demands

YWZ4: Cost-effective basic model with built-in equal clearance linkage, stable performance for conventional medium-load working conditions.

YWZ8: Upgraded version with automatic wear compensation, no frequent manual gap adjustment, ideal for high-frequency heavy-duty continuous operation.

Freely adjustable braking torqueGraduated scale on the main braking spring tube allows intuitive adjustment of spring pre-compression, matching torque requirements of different loads.

Low daily maintenance costSelf-lubricating hinge bearings eliminate regular greasing; plug-in snap friction linings can be replaced quickly without disassembling the entire brake frame.

Diverse matching & customizable optionsCompatible with standard ED, YT1 electro-hydraulic thrusters; BEd flameproof thrusters optional for coal mines and chemical explosive hazardous zones. Vertical standard mounting and custom horizontal transition brackets available for narrow installation space. Dustproof, rainproof and anti-corrosion coatings are provided for coastal open-air sites.

Complete safety accessoriesOptional manual emergency release lever and travel limit switches to feed back brake open/closed signals for PLC safety interlock protection.

Main Application Scenarios

Overhead travelling crane, container gantry crane, port yard trolley, metallurgy heavy transport cart, mining belt conveyor, construction tower crane and all heavy-load lifting & transportation machinery.

Working Conditions

Ambient temperature: -20℃ ~ +50℃Standard power supply of thruster: AC380V; AC220V, 660V, 1140V customizableExplosion-proof versions meet Ex d I (coal mine) and Ex d IIB T4 (chemical plant) standards.

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