Demagnetizer Operation Methods and Usage Guide

Demagnetizer Operation Methods and Usage Guide

Overview

A demagnetizer is a device used to eliminate residual magnetism generated during machining processes. It uses electromagnetic coils to generate magnetic flux lines that interfere with the workpiece existing magnetism, achieving demagnetization.

Types of Demagnetizers

• Table-type Demagnetizer: Compact unit for small to medium workpieces
• Frame-type Demagnetizer: Larger unit with frame opening for production line use
• Handheld Demagnetizer: Portable unit for on-site demagnetization of large workpieces

Table-Type Demagnetizer Operation

1. Connect the demagnetizer to AC220V power supply
2. The cooling fan starts and the demagnetizer begins working
3. Place the workpiece on the top surface at one edge
4. Push the workpiece slowly and continuously from one side to the other
5. Continue pushing until the workpiece is 0.3 meters beyond the demagnetizer edge
6. The demagnetization process is now complete, turn off the power supply

Frame-Type Demagnetizer Manual Mode

1. After power connection, the power indicator light illuminates
2. Place the workpiece inside the frame opening
3. Switch the operating mode to Manual position
4. Demagnetization begins, hold for approximately 5 seconds
5. Slowly remove the workpiece from the frame opening
6. Switch back to Stop or Auto position
7. After a 6-second delay, the demagnetizer stops automatically
8. The workpiece must be moved at least 1.5 meters from the demagnetizer

Frame-Type Automatic Timed Mode

1. Set the operating mode switch to Auto Timed position
2. Connect and position the limit switch before the frame opening
3. The workpiece passes through the frame at constant speed within 5-6 seconds
4. The workpiece must reach 1.5 meters beyond the demagnetizer
5. The demagnetizer stops automatically after the cycle
6. Trays must be non-metallic - never use metal trays or containers

Demagnetization Intensity Settings

• Weak Demagnetization: For low residual magnetism materials such as low-carbon steel and cast iron
• Strong Demagnetization: For high residual magnetism materials such as high-carbon steel and alloy steel
• Three-Dimensional Demagnetization: For difficult workpieces, use strong demagnetization, then rotate 90 degrees and repeat

Handheld Demagnetizer Operation

1. Insert the plug into an AC220V power socket
2. Press the button on top to activate
3. Move the demagnetizer slowly across the workpiece surface
4. After demagnetization, move the device away from the workpiece
5. Turn off the power

Safety Notes

• Manual mode should not exceed 1 minute at a time
• Temperature protection will shut down if overheated
• Never use metal containers during demagnetization