YJA160 Hydraulic Rail Clamp | 160kN Windproof Clamp

YJA160 Hydraulic Rail Clamping Device Full Product Details

1. Product Model Definition & Code Explanation

Full Model No.: YJA160 Hydraulic Rail Clamping Device

YJA160 hydraulic rail clamping device, also known as hydraulic rail clamp or storm brake, is a fail-safe windproof safety device for rail-mounted cranes. It adopts spring-clamped, hydraulic-release working principle. It provides 160kN stable clamping force to lock the crane on the rail and prevent runaway under strong wind. It is widely used for gantry cranes, portal cranes, overhead cranes and port rail machinery, and serves as essential storm protection equipment for outdoor crane systems.

Model Code Interpretation:

• YJA: Hydraulic rail clamp series
• 160: Rated clamping force: 160 kN

2. Product Overview

YJA160 rail clamp is a normally closed safety locking unit. Under normal standby or power failure conditions, high-strength compression springs drive the clamp jaws to tightly grip the rail head and lock the crane. When the crane needs to travel, the hydraulic station supplies pressure to the built-in hydraulic cylinder, pushing the clamp arms open and releasing the rail so the crane can move freely.

It features floating jaw structure, which can compensate rail installation deviation and track misalignment. Optional limit switches can feedback "clamped / released" status signals for electrical interlock with crane traveling control system. The clamp body is made of high-strength cast steel with anti-corrosion coating. The friction pads are high wear-resistant, suitable for long-term outdoor operation in ports, steel plants, power plants and open-air stockyards with wind, dust and rain.

3. Core Features & Product Advantages

• Fail-Safe Normally Closed Design: Spring-Clamped, Hydraulic-Release Automatically clamps the rail once hydraulic pressure or power fails. Effectively stops crane sliding and runaway accidents caused by strong wind or storm.
• 160kN Heavy and Stable Clamping Force Sustained holding force, reliable static locking performance, suitable for medium and large gantry cranes and portal cranes for outdoor wind protection.
• Floating Jaw Compensation Structure Allows certain horizontal and vertical floating displacement, adapts to track deformation, installation error and rail unevenness, reduces clamping stress and avoids jamming.
• Optional Limit Switch for Safety Interlock Realizes signal feedback of clamping and releasing status. The crane traveling mechanism can be interlocked to prevent misoperation before the rail clamp is fully released.
• High Wear-Resistant Friction Pads Special friction material with high friction coefficient, wear-resistant, low noise, easy disassembly and replacement, long service life.
• Heavy-Duty Anti-Corrosion Treatment Rust-proof paint and sealed structure, suitable for coastal port, humid and dusty open-air working environments.
• Easy Maintenance & Manual Release Interface Reserved Reserved manual pump interface, convenient for releasing the clamp during power-off maintenance and inspection.
• Complete Factory Test Records Each unit undergoes static clamping force test before delivery, with inspection report for customer acceptance.

4. Wide Application Scope

YJA160 hydraulic rail clamping device is the dedicated windproof storm safety device for rail-mounted mobile equipment:

• Port gantry cranes, container RTG cranes, portal cranes and ship unloaders
• Outdoor overhead cranes, gantry cranes in steel plants, power plants and stockyards
• Stacker-reclaimers and other rail-mounted bulk material handling machinery
• Rail travelling trolleys and other mobile industrial equipment requiring wind locking protection
• Retrofit projects for upgrading old crane windproof safety systems

5. Detailed Technical Parameters

6. Working Principle

Clamped State (Safety Standby / Power Failure)

When the crane stops or the hydraulic system loses pressure, high-strength compression springs push the clamp jaws to grip both sides of the rail head tightly. The generated 160kN static clamping force locks the crane firmly on the rail, preventing displacement and runaway under strong wind, which is the default safe protection state.

Released State (Crane Traveling)

When the crane is ready to move, the hydraulic station is energized and supplies pressure to the hydraulic cylinder. The hydraulic cylinder overcomes spring force and drives the clamp arms to open, the jaws separate from the rail. The limit switch sends "released" signal to allow the crane traveling mechanism to start. After the crane arrives at the target position, the hydraulic pressure is cut off, and the rail clamp automatically clamps again for locking protection.

7. Product Customization & After-Sales Service

We supply fully tested YJA160 hydraulic rail clamping devices. Customization is available for different rail sizes, special anti-corrosion coating for coastal salt spray environment, matched hydraulic power unit and signal interlock scheme. OEM and ODM services are supported.

We can provide 2D drawings, installation instructions, hydraulic circuit diagram and English operation manual for customer approval. Factory direct sales with strict load testing. We provide professional technical consultation, on-site installation guidance, commissioning support, spare parts supply and long-term global after-sales service for port, steel and crane customers.

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