Circular lifting magnet EO


Circular lifting magnet EO

Circular lifting magnet (EO)

The EO type circular lifting magnet (electromagnetic gripper) is designed for handling ingots, pig iron, chips, steel and cast iron scrap. The lifting magnet of a special multi-pole design is adapted to lift sheet metal coils with winding axis vertical. The EO electromagnet improves internal transport in steelworks, shipyards, foundries and scrap processing plants. The use of the electromagnet shortens loading times in ports, railway terminals and steel warehouses.

The EO electromagnetic gripper is reliable, very robust and designed for S3 75% intermittent periodic duty. The electromagnetic gripper is characterized by high attractive force, high lifting capacity and high handling efficiency. The EO electromagnet has a high-quality winding made of aluminum tape with the highest class of insulation. This makes it resistant to high temperatures and very durable.

Performance features of the circular lifting magnet from Magnetix

  • Custom-made circular lifting magnet according to individual requirements.
  • Robust and durable design adapted for intermittent operation under difficult working conditions.
  • Electromagnet diameter up to 2000 mm, electromagnet power up to 40 kW.
  • High-quality electromagnet winding made of aluminum tape.
  • Electromagnet insulation made in class C up to 300°C.
  • Relative duty cycle 75%. Maximum cycle time 10 minutes.
  • Excellent thermal properties and optimal heat dissipation from the interior of the lifting magnet.
  • Handling of hot materials up to 650°C.
  • Adjustment of electromagnet current and attraction force by digital AC / DC converter.
  • Shortest magnetization / demagnetization time of the lifting magnet.
  • High handling efficiency compared to competitive solutions.

Applications of the circular electromagnet

  • Handling of chips, steel and cast iron scrap.
  • Handling of ingots and pig iron in steelworks.
  • Lifting of iron and steel castings.
  • Loading of sheet metal and wire coils with winding axis vertical.
  • Cleaning storage and maneuvering yards from steel scrap.
  • Destruction of buildings using a steel demolition ball.


EO electromagnetic gripper during operation

Versions of the circular lifting magnet

  • EOS type lifting magnet
    Circular electromagnet with a welded body made of steel with high magnetic permeability, durable and easy to repair.
  • EOR type lifting magnet
    Circular electromagnet with a cast body made of deeply ribbed steel casting with high durability, designed for difficult working conditions.
  • EOS-nB type lifting magnet
    Circular electromagnet of multi-pole construction for sheet metal coils.
  • Circular electromagnet with electro-hydraulic generator
    Designed for excavators, loaders and other mobile machines.

EO lifting magnet accessories

  • Control cabinet for power supply, control and monitoring of the lifting magnet.
  • Digital AC/DC converter providing precise regulation of electromagnet current, quick circuit discharge function and tipping function.
  • Emergency back-up power supply system provided with immediate voltage failure signalling and switching over to the emergency battery supply.
  • Spring-driven or motor-driven cable reel supplying power to the lifting magnet.
  • Remote control from the gantry operator control panel.
  • Radio control for ground personnel.
  • Chain slings.

Working principle of the electromagnetic gripper

The electromagnetic gripper in a non-magnetized state (disconnected from the power supply) is lowered onto the load by the crane operator. After applying the supply voltage from the control cabinet, direct current flows through the electromagnet winding. A strong magnetic field is generated at the magnetic poles of the gripper. This operating state is called magnetization. The gripper attracts the load until the operator turns off the power. This operating state is called demagnetization. The digital AC/DC converter installed in the control cabinet is responsible for the quick discharge function of the circuit and regulation of the electromagnet power.

Videos featuring the circular lifting magnet

Why choose our circular lifting magnets?

EO circular electromagnetic grippers are designed mainly for handling scrap. Due to the shape of the body, they are also perfect for lifting coils of sheet metal and wire with a vertical axis. Our offer includes two gripper variants: a welded body and a cast body for difficult working conditions. We use materials with the highest magnetic permeability and windings with the highest insulation class. In addition to high-quality aluminum tape windings, we also offer coils made of copper, which provide higher electromagnet power with the same diameter. Copper winding is most often used in multi-pole construction for lifting heavy coils of sheet metal with a vertical axis. We also provide an electromagnetic gripper for working with material at temperatures up to 650°C. Thanks to the use of four-quadrant control, we have reduced the magnetization and demagnetization time of the grippers to a minimum, which significantly shortens the reloading time.

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