the ZWZB-500/500 Series Electromagnetic Drum Brake is a specific type of DC (Direct Current) electromagnetic brake designed for heavy-duty industrial applications.
It is essentially an updated or standardized version of older ZWZ series products, designed to meet GB (Chinese National) standards.
Here is a detailed overview of this specific model based on the available technical data:
🔧 What is the ZWZB-500/500?
The ZWZB-500/500 is a DC Electromagnetic Drum Brake. Unlike the AC MW series you looked at earlier, this series typically operates on a DC 220V power supply.
Model Meaning:
ZWZ: Electromagnetic Drum Brake.
B: Indicates the specific series variant (often signifying compliance with GB standards or an improved design).
500/500: Generally refers to the diameter of the brake wheel (500mm) and the rated thrust or specific frame size.
📋 Key Specifications & Features
Based on the characteristics of the ZWZB series and the specific 500/500 size, here are the core specifications:
表格
| Parameter | Specification | Notes |
|---|---|---|
| Model Series | ZWZB-500/500 | Replaces older ZWZ3/ZWZ3A series. |
| Power Supply | DC 220V | Note: Some specific configurations may vary; always check the nameplate. |
| Brake Wheel Diameter | 500 mm | Large diameter for high torque applications. |
| Standard Compliance | GB (National Standard) | Connection dimensions follow GB standards. |
| Primary Use | Heavy Industry | Metallurgy, ports, large cranes. |
✨ Distinctive Features
Compared to older models, the ZWZB series (including the 500/500) incorporates several design improvements:
Self-Lubricating Hinges: The main moving pivot points use self-lubricating bushings. This reduces maintenance needs and ensures smooth operation even in dusty environments.
Equal Clearance Mechanism: It features a special "interlock-type" device that automatically keeps the gap between the brake shoes and the drum equal on both sides. This prevents one-sided wear and ensures the brake releases fully.
Tool-Free Lining Replacement: The brake linings are designed as a "card-type" integrated structure. When the friction material wears out, you can replace it quickly without disassembling the entire brake mechanism.
Durable Friction Material: It supports various lining materials, including semi-metallic (asbestos-free), hard, and soft composites, allowing you to choose the best material for your specific load and temperature conditions.
🏭 Typical Applications
This is a large, heavy-duty brake. You will typically find it installed on:
Metallurgical Equipment: Rolling mills, continuous casting machines (where high temperatures and heavy loads are present).
Large Port Cranes: For hoisting and luffing mechanisms that require high braking torque.
Heavy Construction Machinery: Large mixers or conveyors.
💡 Usage Environment
To ensure safety and longevity, the ZWZB-500/500 should be used under the following conditions:
Temperature: -25°C to +40°C.
Altitude: Below 2000 meters.
Environment: The area should be free of explosive gases, corrosive chemicals, and excessive conductive dust.
