Motor Draw-Work Brake

Operating Principle

Single girder crane electromagnetic brakes are normally closed brakes. This means the brake is engaged by spring force when the power is off and is released by electromagnetic force when power is applied.

Primary Applications

This series is extensively used in:

· Lifting & Hoisting Equipment

· Port Handling Machinery

· Metallurgical Equipment

· Mining & Construction Machinery

Key Features & Technical Specifications

Main Features

· Equal Clearance Retraction Device: Ensures consistent clearance on both brake shoes, preventing dragging and uneven wear.

· Self-lubricating Bearings: Used at main swing hinge points for high transmission efficiency, long service life, and maintenance-free operation.

· Easy Maintenance Latch: Designed for easy installation and service.

· Clamp-mounted Brake Lining: The linings have a one-piece molded structure, allowing for quick and convenient replacement. They are also asbestos-free, making them environmentally friendly.

· Energy Efficient: The electromagnet is designed for low power consumption during the holding phase.

Technical Data

· Compliance Standards: Connection dimensions and braking torque parameters comply with Chinese industrial standards such as JB/T7685-2006.

· Power Supply: Rated voltage for MWZ series is 220V DC. (The MW series uses 380V AC).

· Braking Torque Range: From 80 Nm to 10,000 Nm across different models.

· Suitable Wheel Diameter: 160 mm to 800 mm.

Operating Conditions

· Ambient Temperature: -20°C to +40°C (some listings state -25°C to +40°C).

· Altitude: ≤ 2000 m.

· Relative Humidity: ≤ 90%.

· Environment: Should be free from explosive, corrosive, or conductive dust that could damage metal or insulation.

Product Model Examples

The product model typically indicates the brake size and torque. Common models within the series include:

· MWZ160-80

· MWZ200-160

· MWZ315-630