CANTILEVER CRANE HYDRAULIC DRUM BRAKE YW-L BRAKE

Service conditions:

●Ambient temperature: - 20 ºC - 50 ºC;
●There shall be no flammable, explosive and corrosive gases in the surrounding working environment, otherwise the anti-corrosion products shall be used;
●The relative humidity of the air is not more than 90%;
●The altitude of the use site conforms to GB755-2000.

 

⚙️ Product Overview

The YW-L Series is a highly compact electro-hydraulic drum brake designed for the deceleration and parking (holding) braking of various heavy industrial mechanisms. It is specifically engineered for installations where space is limited and traditional brake models (like YWZ4, YWZ8, or YWZ9) cannot be easily arranged. This makes it an excellent braking solution for the travel or hoisting mechanisms of a cantilever crane.

The model number breakdown (e.g., YW-L400/E80) is as follows:

YW-L: The series designation for this compact electro-hydraulic drum brake.

400: Indicates the Brake Wheel Diameter of 400 mm.

E80: Indicates it is paired with an Ed80 electro-hydraulic thruster (providing 800 N of thrust).

💡 Key Features & Characteristics

Compact & Space-Saving Design:

The YW-L series is optimized for walking mechanisms and machinery with restricted installation spaces. Despite its compact footprint, it delivers robust braking performance.

Electro-Hydraulic Operation:

Power-to-Release, Spring-to-Brake: When the electro-hydraulic thruster is powered on, it generates hydraulic pressure to push the piston rod upward. This action compresses the brake spring and pulls the brake shoes away from the wheel, allowing the crane to move freely. When power is cut, the spring force instantly pushes the shoes against the wheel to apply the brake.

Smooth & Safe: Provides highly reliable performance with smooth braking action and the ability to handle high operating frequencies.

Advanced Mechanical Features:

Equal Clearance Mechanism: Features an interlocking device that automatically keeps the clearance (退距) between the brake shoes and the wheel perfectly even on both sides. This prevents one side from dragging or wearing out faster than the other.

Self-Lubricating Bearings: The main pivot points are equipped with self-lubricating bearings, ensuring high transmission efficiency and a long service life without the need for regular greasing.

Visible Torque Adjustment: The brake spring is housed in a square tube with a clear scale, allowing maintenance personnel to easily read and adjust the braking torque without complex calculations.

Quick-Release Linings: The brake pads (linings) use a secure, clip-on insert structure. They are available in various materials (including non-asbestos semi-metallic options) and can be replaced quickly and safely.

Environmental Adaptability:

Designed to operate reliably in ambient temperatures ranging from -20°C to +50°C and in environments with relative humidity up to 90%. (Note: For outdoor cantilever cranes exposed to rain, snow, or corrosive gases, a special anti-corrosion version should be used).

🏭 Typical Applications

The YW-L series is widely used across heavy industries, making it highly suitable for cantilever cranes in:

Port & Logistics: Cantilever cranes used for loading and unloading bulk materials or containers.

Metallurgy & Mining: Cranes operating in steel mills, foundries, and open-pit mines.

General Construction & Machinery: Any cantilever or gantry crane requiring a reliable, space-efficient fail-safe brake.

📋 General Technical Specifications

表格

Parameter	Description
Type	Electro-Hydraulic Drum Brake
Model Series	YW-L Series
Brake Wheel Diameter	200 mm, 250 mm, 315 mm, 400 mm, 500 mm
Braking Torque Range	Approx. 200 N·m to 4100 N·m (depending on model)
Matched Thruster	Ed Series Electro-Hydraulic Thruster
Braking Principle	Electro-hydraulic release, Spring-applied (Normally Closed)
Ambient Temperature	-20°C to +50°C
Key Features	Compact design, equal clearance, self-lubricating, visible torque scale

Note: The YW-L series complies with standard industrial dimensions (such as JB/T6406 and DIN15435). When selecting a brake for your cantilever crane, ensure the brake wheel diameter matches your existing drum, and choose a thruster size that provides the necessary braking torque for your crane's load and speed requirements. Regular inspection of the brake lining thickness and the hydraulic fluid level in the thruster is highly recommended to ensure optimal safety and performance.

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