The YW-L500/E201 is a specific model within the YW-L Series of Electric Hydraulic Drum Brakes. This brake is designed for heavy-duty industrial applications, combining a robust frame size with a powerful drive mechanism.
Here is a detailed breakdown of the YW-L500/E201 based on the available technical specifications and industry standards:
1. Product Overview
The YW-L series is known for its compact design and high performance, often used as an alternative to YWZ4, YWZ8, or YWZ9 series brakes where installation space is limited.2
Model Decoding:
YW-L: Series designation (Electric Hydraulic Drum Brake).
500: Frame size, indicating the approximate diameter of the brake wheel it fits (500 mm).
E201: Drive mechanism code, specifying the use of an Ed201 series electric hydraulic thruster.
2. Key Technical Specifications
表格
| Parameter | Specification | Notes |
|---|---|---|
| Brake Wheel Diameter | 500 mm | Standard drum size for the "500" frame. |
| Drive Unit | Ed201 | Electro-hydraulic thruster (Typically Ed201/6). |
| Rated Thrust | 2000 N | Force generated by the Ed201 pusher. |
| Stroke | 60 mm | Standard stroke for the "/6" variant. |
| Power Supply | 380V, 50Hz | Standard 3-phase AC power (others available). |
| Standard | JB/T6406-2006 | Conforms to Chinese mechanical industry standards. |
3. Key Features
Compact Design: The YW-L series is engineered for situations where the YWZ4, YWZ8, or YWZ9 forms cannot be installed due to space constraints.
Ed201 Thruster Drive: Utilizes the Ed201 pusher, which provides a strong, reliable linear force to release the brake springs. This thruster features an asynchronous motor design, eliminating the need for starting capacitors and gear maintenance.
Automatic Equal Clearance (Interlocking): Features a linkage-type equal retreat device. This ensures that the gap between the brake shoes and the drum remains equal on both sides automatically, preventing uneven wear and "dragging".
Plug-in Brake Lining: The friction linings use a clip-in (insertion) design. This allows for very fast replacement without removing the brake from the shaft.
Self-Lubricating Hinges: All major pivot points are fitted with self-lubricating bearings, reducing maintenance requirements and ensuring smooth operation in dusty environments.
Wear Compensation: Can be equipped with a brake lining wear automatic compensation device. This maintains a constant brake torque and air gap as the linings wear down over time.2
4. Typical Applications
The YW-L500/E201 is used in heavy industry where high reliability and frequent braking are required:
Cranes & Hoists: Bridge cranes, gantry cranes (for hoisting and traveling mechanisms).
Mining & Minerals: Braking for large belt conveyors, crushers, and hoists.
Metallurgy: Rolling mills, ladle rotators, and blast furnace equipment.
Port Machinery: Ship unloaders and container handlers.
