MWZ200-160 Electromagnetic Drum Brake

MWZ200-160 Electromagnetic Drum Brake

The MWZ200-160 is a heavy-duty, energy-saving DC electromagnetic block (drum) brake widely used in industrial lifting and transport machinery. It is specifically designed for frequent operation and rapid start-stop scenarios, providing reliable mechanical braking to control speeds and safely hold loads.

The model number breakdown is as follows:

MWZ: The series designation for an energy-saving DC electromagnetic block-type drum brake (featuring eco-friendly, non-asbestos linings).

200: The Brake Wheel Diameter of 200 mm.

160: Indicates the matched Rated Braking Torque of 160 N·m.

💡 Key Features & Characteristics

Fail-Safe "Normally Closed" Operation:

Power-to-Release, Spring-to-Brake: When the equipment is running, the DC electromagnet is energized, pulling the armature to compress the main spring and release the brake shoes (open the brake). When the power is cut (during a stop or a power outage), the electromagnet de-energizes, and the strong spring force instantly pushes the brake shoes against the drum to stop and hold the load.

Safety First: This fail-safe design is critical for lifting machinery, as it automatically prevents the load from dropping or "coasting" in the event of an unexpected power failure.

High-Performance Specifications (MWZ200-160):

Braking Torque: Delivers a rated braking torque of 160 N·m, which can be precisely adjusted by changing the compression length of the main spring.

Drive Unit: Powered by a DC Electromagnet (typically DC 220V), offering lower energy consumption, reduced noise, and less heat generation compared to traditional AC electromagnetic brakes.

Brake Shoe Clearance: Features an adjustable clearance (typically around 0.4 to 0.6 mm per side) to ensure fast and responsive braking action.

Robust & Maintenance-Friendly Design:

Equal Clearance Mechanism: Equipped with an automatic compensation device that keeps the clearance between the brake shoes and the wheel perfectly even on both sides. This prevents one-sided dragging or floating, ensuring smooth and balanced braking.

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

Easy Maintenance: The brake pads (linings) use a secure, quick-release clip-on structure. They are made of eco-friendly, non-asbestos materials, making replacement fast, convenient, and safe.

Environmental Adaptability:

Designed to operate reliably in ambient temperatures ranging from -20°C to +40°C (some variants up to +55°C) and in environments with high relative humidity.

🏭 Typical Applications

The MWZ200-160 is a staple in various heavy industrial sectors:

Lifting Machinery: Overhead cranes, gantry cranes, hoists, and winches for controlling descent speed and parking.

Port & Metallurgy: Port loading/unloading machinery, steel rolling mills, and other heavy equipment requiring frequent and reliable stops.

Mining & Construction: Mining winches, inclined belt conveyors, and various construction machinery transmission systems.

📋 General Technical Specifications

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Note: The MWZ200-160 is a highly reliable braking component. Because it is a "normally closed" brake, regular inspection of the brake shoe clearance and the thickness of the friction lining is essential. Worn linings or incorrect clearance can significantly reduce braking efficiency and safety. Always ensure the matched DC electromagnet is powered by the correct voltage to guarantee smooth and instant release during operation.

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