Electromagnetic Lifting Magnets

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Product Varieties & Specifications

Electromagnetic Lifting Magnets are primarily categorized into two main types based on their design and the type of load they handle. Each is engineered for specific applications and offers distinct advantages.

1. Circular Electromagnetic Lifting Magnets

Circular magnets are the most common type, featuring a robust, circular housing that contains a single large coil. They are ideal for handling a wide range of scrap metal, from small turnings to large pieces, and are excellent for lifting multiple items at once.

Basic Parameters (Typical Range)：

Parameter	Specification
Diameter	18 inches to 60 inches (460 mm to 1520 mm).
Lifting Capacity	Varies significantly based on material type and magnet size.
On Scrap Steel	500 lbs to 30,000+ lbs (230 kg to 13,600+ kg) per magnet.
On Solid Steel Plate	Up to 5x the scrap lifting capacity for a given magnet size
Power Consumption	1.5 kW to 10 kW, depending on magnet size.
Voltage	Typically 230V DC or 460V DC (requires a separate rectifier control panel).
Weight	500 lbs to 6,000 lbs (230 kg to 2,700 kg).
Safety Factor	Designed with a 3:1 safety factor (e.g., a magnet rated for 10,000 lbs has a ultimate breakaway force of 30,000 lbs).

Typical Applications

1.1 Process scrap steel

Circular Electromagnetic Lifting Magnets

1.2 Process scrap steel

Circular Electromagnetic Lifting Magnets

1.3 Process scrap steel

Circular Electromagnetic Lifting Magnets

2. Rectangular Electromagnetic Lifting Magnets (Bi-Polar Magnets)

Rectangular magnets, often called bi-polar magnets, have two magnetic poles separated by a gap. This design creates a deep magnetic field ideal for handling long, structural materials like steel plates, beams, pipes, and sheets with a secure, balanced hold.

Basic Parameters (Typical Range)：

Parameter	Specification
Dimensions	Lengths from 3 ft to 10 ft (0.9 m to 3 m); widths from 1 ft to 3 ft (0.3 m to 0.9 m).
Lifting Capacity	Often rated per foot of length for plates of a specific thickness.
On Steel Plate	1,000 lbs to 8,000 lbs per foot (1,500 kg to 12,000 kg per meter).
Power Consumption	2 kW to 15 kW.
Voltage	Typically 230V DC or 460V DC.
Weight	1,000 lbs to 10,000 lbs (450 kg to 4,500 kg).

Typical Applications

2.1 Handling Steel Coils

Handling Steel Coils

3. Beam-Mounted Electromagnetic Lifting Magnets

Beam-Mounted Electromagnetic Lifting Magnets lift and transport billets, ingots, billets and more.

Typical Applications

3.1 Processing billets

Processing billets

Beam-Mounted Electromagnetic Lifting Magnets

Processing billets

Beam-Mounted Electromagnetic Lifting Magnets

Processing billets

Key Components & System Requirements

A complete electromagnetic lifting system consists of more than just the magnet:

1. The Magnet: The core lifting device.
2. Control Panel / Rectifier: A crucial component that converts AC power from the plant supply into DC power for the magnet. It also houses safety systems like:
- Back-Up Power (Battery Backup): Provides power to the magnet in case of a main power failure, preventing dropped loads and ensuring safety.
- Discharge Modules: Safely dissipate the magnetic energy when the magnet is turned off.
3. Cable Reel: Manages the power cable between the control panel and the magnet, especially on cranes with long travel distances.

Advantages of Electromagnetic Lifting Systems

1. Deep Magnetic Penetration: Can lift multiple layers or piles of material.
2. Exceptional Efficiency: Faster cycle times compared to mechanical attachments.
3. Secure Grip: Provides a full 360-degree hold on the load.
4. Minimal Maintenance: No moving parts within the magnet itself.
5. Durability: Built with heavy-duty steel casings and impact-resistant coils to withstand harsh industrial environments.

Important Safety Considerations

Safety is paramount when using electromagnetic lifters. Key features and protocols include:

1. Automatic Backup Systems: Essential for preventing catastrophic load drops during power outages.
2. Regular Inspection: Coil resistance and insulation should be checked regularly.
3. Load Weight Awareness: The operator must always know the weight of the load and ensure it does not exceed the magnet’s rated capacity for that specific material.
4. Surface Contact: The magnet must make full contact with the material for a secure hold.

Electromagnetic Lifting Magnets are a proven, powerful, and efficient solution for material handling in the ferrous metals industry. By choosing the correct type—circular for versatile scrap handling or rectangular for long structural items—businesses can dramatically improve their operational efficiency and safety.

Contact our technical sales team today to discuss your specific application and find the perfect electromagnetic lifting solution for your needs.

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