DLZ Power-Driven Wheel Brake – All-Electric Oil-Free, Disc Spring Fail-Safe Wind Lock

DLZ Power-Driven Wheel Brake

DLZ series power-driven wheel brake is a new-generation all-electric wheel-side windproof safety brake, developed to replace traditional hydraulic YLZ wheel brakes. It integrates a built-in electric linear actuator, eliminating the need for supporting hydraulic stations, oil tanks and complex pipeline layouts. The product adopts disc spring normally closed fail-safe structure: energize the built-in electric motor to pull open friction pads for normal crane travel; once power fails, circuit trips or emergency shutdown triggers, disc springs instantly clamp wheel treads to form high static holding lock. Directly clamping wheel surfaces avoids rail abrasion, delivering dual anti-wind protection both during equipment operation and long-term unattended parking. Widely used in port rail-mounted gantry cranes (RMG), rubber-tyred gantry cranes (RTG), stacker-reclaimers, ship unloaders and outdoor metallurgical/mining heavy rail transport equipment.

Core Competitive Advantages

Integrated all-electric drive, fully oil-free zero leakage (Core Highlight)

Built-in compact electric actuator replaces hydraulic drive systems. No hydraulic oil, pumps, valves or pipelines needed, completely eliminate common faults like oil leakage, seal aging, oil deterioration and pipeline blockage. Simplify on-site wiring and installation, greatly reduce long-term spare parts and fluid maintenance costs for port and mining enterprises.

Disc spring passive fail-safe locking for typhoon resistance

High-strength disc spring group provides powerful static wheel clamping torque. Automatic locking without manual intervention once power supply is interrupted, effectively resisting strong crosswinds and typhoons at open-air seaports, preventing crane sliding, collision and container tipping. Optional limit switches feed brake open/closed state signals to PLC to build a full safety interlock control chain for unmanned yards.

Built-in equal retraction balance linkage

Synchronous retraction mechanism maintains consistent clearance between two friction pads and wheel tread at all times. Effectively solve unilateral pad dragging, local overheating and uneven wear problems, doubling friction pad service life and cutting spare part replacement frequency.

Independent single-wheel control, flexible braking performance

Each DLZ wheel brake is equipped with an independent electric actuator, realizing separate control for each wheel set. Operators can distribute braking force flexibly according to load and wind conditions, delivering smoother deceleration and more stable parking compared with centralized hydraulic synchronous braking.

Ultra-low maintenance modular construction

All swing hinge pivot points use maintenance-free self-lubricating bearings, cancel periodic grease filling;

Snap-in plug-type friction pads can be replaced without disassembling the whole brake body, saving over 60% maintenance downtime;

IP65 fully sealed housing with heavy-duty salt-fog anti-corrosion coating, adapting to coastal high humidity, mine dust and cement plant harsh environments without rust jamming;

Graduated spring preload scale for intuitive stepless adjustment of holding torque to match different tonnage cranes.

Diversified customized configurations

Complete DLZ specification range covers light to heavy load tonnage. Explosion-proof electric actuator versions are available for chemical workshops and underground coal mine hazardous areas. Left/right symmetric mounting brackets, customized rain/dust shields and anti-corrosion paint optional. Can work independently or match YFX rail wedge brakes to form full-grade typhoon-proof double safety systems for large container terminals.

Main Application Scenarios

Port rail-mounted container gantry cranes (RMG), rubber-tyred gantry cranes (RTG), stacker-reclaimers, ship unloaders, outdoor portal cranes, metallurgical heavy transfer trolleys, mining bucket wheel excavators and all outdoor rail running machinery requiring oil-free electric windproof parking protection.

Working Condition Parameters

Driving mode: Disc spring normally closed, built-in electric actuator release

Standard control voltage: AC380V / DC24V customizable

Protection grade: IP65

Ambient temperature: -20℃ ~ +50℃

Core function: Anti-slip protection during traveling, auxiliary anti-typhoon parking brake, double windproof safety matched with rail wedge brakes

Hot Tags: dlz power-driven wheel brake – all-electric oil-free, disc spring fail-safe wind lock, China, manufacturers, supplier, factory, customized