DLZ63 Electric Wheel Side Brake | Oil-Free Crane Windproof Brake

Product Overview

DLZ63 power-driven wheel brake is an oil-free, all-electric wheel-rim clamping safety brake. It takes high-strength disc spring group as the braking power source and electric motor as the release driving source. Under power-off and standby conditions, the disc spring automatically pushes the friction pad to clamp the crane travelling wheel rim to realize reliable locking.

When the crane needs to operate, the built-in electric drive mechanism acts rapidly to overcome the spring preload, retract the brake pad and release the brake, allowing free travelling of the equipment. With fully sealed integrated structure, this brake completely abandons the traditional hydraulic system, avoiding common faults such as oil leakage, pipeline aging and hydraulic station failure. It features simple structure, intelligent signal feedback and ultra-low maintenance, becoming an upgraded replacement for traditional hydraulic wheel brakes.

Equipped with standard limit switch for working state feedback, it supports automatic electrical interlock and remote monitoring, perfectly matching modern intelligent port crane safety systems.

Core Features & Product Advantages

All-Electric Oil-Free Design: No hydraulic station, no oil pipe, no hydraulic oil. Zero oil leakage failure, clean operation, greatly reducing system maintenance accessories and hidden troubles.

Strict Fail-Safe Power-Off Braking: Disc spring group provides continuous and stable braking force. Automatic wheel locking when power is cut off or equipment shuts down, effectively preventing crane drifting and runaway under strong wind and storm conditions.

Direct Wheel Rim Clamping: Acts directly on the travelling wheel rim without damaging the crane rail. Uniform stress and better wind resistance than traditional rail wedge brakes.

Fully Sealed & Durable Structure: The driving part adopts integral fully sealed design with high protection grade, dustproof, waterproof and anti-corrosion, adapting to harsh outdoor open-air and coastal salt spray environments.

Intelligent Signal Feedback: Built-in limit switch, real-time feedback of brake open/closed status, realizing electrical interlock protection and remote monitoring to improve overall equipment safety.

High-Stability Friction Performance: Adopts high-performance non-asbestos wear-resistant friction pads, stable friction coefficient, low noise, heat resistance and long service life.

Simple Installation & Low Maintenance: Compact integrated structure, convenient wheel-side installation. No hydraulic debugging required, only regular inspection of friction pad wear, greatly reducing daily operation cost.

High Synchronous Control Performance: Electric unified control mode ensures synchronous braking and releasing of multiple brakes, stable and consistent crane travelling mechanism action.

Wide Application Scope

DLZ63 power-driven wheel brake is dedicated to windproof anti-slip and static parking braking of various outdoor heavy rail-mounted machinery, widely applicable to:

Port rail-mounted gantry cranes (RMG) and container gantry cranes

Outdoor large bridge cranes, gantry cranes and travelling lifting equipment

Stacker-reclaimers, ship unloaders and bulk material handling machinery

Mining, chemical and outdoor fixed rail transfer equipment

Large yard cranes and construction outdoor rail lifting machinery

All outdoor wheel-rail equipment requiring oil-free, low-maintenance storm safety braking

Detailed Technical Parameters

Working Principle

Electric Release (Equipment Running State)

When the rail crane needs to travel, the control system powers on the built-in electric driving mechanism. The electric device outputs stable driving force to overcome the preload of the disc spring group, retract the brake arm and separate the friction pad from the wheel rim. The brake is completely released without clamping resistance, and the crane can travel and work freely.

Spring Locking (Standby & Storm State)

When the equipment stops running or the power supply fails, the electric release mechanism stops working instantly. The high-strength disc spring group rapidly releases elastic force to push the friction pad to tightly clamp the crane wheel rim. Stable and reliable static friction braking force is generated to lock the travelling wheel firmly, effectively preventing equipment sliding, drifting and runaway accidents caused by outdoor strong wind and storm weather.

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