DJPZ-200 Motor Disc Brakes

DJPZ-200 motor disc brakes

The DJPZ-200 is an Electromagnetic Disc Brake specifically designed for direct mounting on electric motors. It is a "normally closed" safety brake used to stop or hold machinery in position immediately when power is cut.

The model number breakdown is as follows:

DJPZ: The series designation for Electromagnetic Motor Disc Brakes.

200: The Braking Torque Rating of 200 N·m.

Application: It is typically installed on the non-drive end (tail) of an electric motor or on the high-speed shaft of a reducer.

💡 Key Features & Characteristics

Fail-Safe Operation (Normally Closed):

Braking (Power Off): The brake is spring-actuated. When power is cut, the springs push the friction disc against the brake pad, creating friction to stop the motor instantly.

Releasing (Power On): When electricity is supplied, the electromagnetic coil generates a magnetic field that pulls the armature, compressing the springs and releasing the brake to allow rotation.

Direct Motor Mounting:
Unlike drum brakes that require a separate wheel and complex linkage, the DJPZ series is compact and integrates directly with standard electric motors (Frame sizes 63–315). This saves space and simplifies the transmission design.

Manual Release Function:
The unit is equipped with a manual release lever or screw. This allows operators to disengage the brake mechanically in the event of a power failure or emergency, enabling the motor shaft to be turned by hand (e.g., for maintenance or positioning).

Disc Brake Advantages:

Heat Dissipation: The disc design exposes a larger surface area to the air, allowing for better cooling compared to enclosed drum brakes.

Stability: The braking torque is less affected by friction coefficient changes (e.g., due to heat or moisture).

Cleanliness: The open design allows dust and debris to be thrown off by centrifugal force, preventing buildup that could affect performance.

Fast Response:
The electromagnetic actuation provides a rapid response time, making it suitable for applications with high working frequencies (frequent starts and stops).

🏭 Typical Applications

The DJPZ-200 is widely used in machinery requiring precise stopping and safety holding:

Lifting & Transport: Cranes, hoists, and elevators (for safety positioning).

Industrial Machinery: Metallurgy, mining equipment, and wind turbines.

General Automation: Packaging machines, textile machinery, and printing presses.

Vertical Applications: Essential for any vertical axis motor to prevent the load from falling when power is off.

📋 General Technical Specifications

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Note: The DJPZ-200 requires a DC voltage for the coil (typically rectified from AC 220V or 380V). Ensure you have the correct rectifier or power supply unit installed. The "200" refers to the torque, not the disc diameter. This brake is part of a series ranging from 2 N·m to 2000 N·m.

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