Steel Lifting Electromagnet

 

A steel lifting electromagnet is designed for crane handling of ferromagnetic steel stock where controlled pickup, transfer and release are required. The MW22, MW32, MW42 and MW92 series cover rectangular, long rectangular and reinforced-pole magnetic circuits for billets, steel ingots, girder billets, slabs, round steel and profiled steel.

The correct magnet is selected against the steel grade, section, surface condition, temperature, material length and required lifting arrangement. The lifting examples apply to two-magnet combinations under defined billet conditions; they are not a universal safe working load for all steel materials.

 

 

 

Item	Technical information
Product series	MW22, MW32, MW42, MW92
Suitable materials	Billet, steel ingot, girder billet, slab, round steel, profiled steel and selected track beams
Magnet circuit options	Rectangular, long rectangular, reinforced-pole and movable-pole configurations
Temperature versions	Normal temperature, high temperature and super-high temperature versions, depending on series
Rated voltage	DC 220 V
Duty cycle	TD 60%
Cold-state power range	3.3-21.0 kW
Cold-state current range	15.0-95.5 A
Overall length A range	900-2500 mm
Mass range	970-6270 kg
Lifting configuration examples	Two-magnet combinations for 150 mm, 200 mm and, by series, 240 mm billets

Important: Overall dimensions, power consumption, mass and lifting results vary by model and temperature version. Confirm the final model against the actual material and complete lifting system before release for manufacture.

 

 

MW22 Rectangular Steel Lifting Electromagnet

MW22 is a rectangular magnet series for handling billets, steel ingots, girder billets and slab-type materials. The series is available in normal-temperature, high-temperature and super-high-temperature versions. Magnetic circuit selection must follow the material being lifted, particularly where section geometry or operating temperature changes the effective contact condition.

MW32 Long Rectangular Electromagnet

MW32 is intended for long steel stock, including square billets, steel ingots and large blooming material. It can also be configured for round or profiled steel. The long rectangular format supports distributed magnetic contact along the workpiece; final magnet spacing must be set according to stock length, weight distribution and lifting-beam arrangement.

MW42 Reinforced-Pole Lifting Magnet

MW42 uses a reinforced-pole structure for applications where the available contact area is limited. It is suited to billets, girder billets and selected rail or track-beam sections. The pole arrangement is selected to obtain stable magnetic engagement with the material profile rather than to apply a single capacity figure across different steel shapes.

MW92 Movable-Pole Electromagnet

MW92 incorporates movable pole blocks that must move freely when the magnet contacts the workpiece. This configuration requires routine inspection and maintenance of the moving parts. It should be selected only after confirming the material profile, contact condition and maintenance access for the installation.

 

 

 

A steel lifting electromagnet must be specified as part of the complete lifting arrangement. The following information is required for technical selection:

Selection input	Why it matters
Steel grade and magnetic properties	Magnetic attraction changes with material composition and condition.
Workpiece cross-section and contact area	Determines the available magnetic path and usable contact surface.
Surface condition	Scale, rust, gaps, curvature and unevenness reduce effective magnetic contact.
Material temperature	Defines whether a normal, high or super-high temperature version is required.
Stock length and mass	Determines the number of magnets, magnet spacing and suspension arrangement.
Lifting beam, slings and crane hook	Must be sized for the combined magnet mass and lifted material load.
Power and control arrangement	Must be compatible with the DC 220 V, TD 60% operating basis.

 

 

The table below defines representative configuration boundaries for the MW series. It is intended for product-page comparison, not as a substitute for a model-specific lifting calculation.

Series	Circuit / application focus	Temperature versions shown	Rated voltage	Duty cycle	Overall length A	Cold-state power	Magnet mass
MW22	Rectangular circuit for billet, steel ingot, girder billet and slab	Normal, high, super-high	DC 220 V	60%	900-2500 mm	4.7-15.1 kW	1,420-6,270 kg
MW32	Long rectangular circuit for long billets, ingots, blooming and profiled steel	Normal, high, super-high	DC 220 V	60%	900-2100 mm	6.4-15.9 kW	1,670-5,760 kg
MW42	Reinforced-pole circuit for smaller contact areas, billets and selected beams	Normal, high, super-high	DC 220 V	60%	900-2100 mm	8.83-21.0 kW	1,880-5,810 kg
MW92	Movable-pole circuit for designated material-contact conditions	Normal, high	DC 220 V	60%	1000-2100 mm	3.3-10.0 kW	970-3,000 kg

Interpretation of Lifting Examples

Lifting examples use two magnet units. The number of billets lifted changes with billet length, billet size and magnet series. A lifting result for 150 mm, 200 mm or 240 mm billet stock must not be transferred to another section, steel grade, temperature or surface condition without technical confirmation.

 

 

• Billet transfer between rolling, storage and charging positions
• Steel ingot and large blooming handling
• Girder billet and slab transfer
• Round steel and profiled steel handling where the magnetic circuit is matched to the section
• Selected rail or track-beam handling with an appropriate reinforced-pole configuration

 

 

 

The magnet suspension arrangement must maintain stable alignment with the steel stock. When two units are used, lifting-beam geometry and magnet spacing should support the actual workpiece length and centre of gravity. The crane, lifting beam, hooks, slings and connectors must be assessed for the total suspended mass, including each electromagnet and the lifted material.

Before operation, verify the workpiece contact surfaces, magnetic engagement, temperature condition and control compatibility. Keep movable-pole components clean and serviceable where MW92 configurations are used. Do not use lifting examples as a replacement for an application-specific lifting assessment.

 

 

What materials can a steel lifting electromagnet handle?

The available MW series are configured for ferromagnetic steel stock including billets, steel ingots, girder billets, slabs, round steel and profiled steel. Suitability depends on the magnetic circuit, contact area and the material condition.

How is the lifting capacity determined?

Lifting performance is determined by the magnet model, steel grade, section, contact condition, temperature, workpiece length and number of magnets. The stated figures are application examples for two-magnet arrangements and must be verified for the actual material.

Are high-temperature steel lifting electromagnets available?

Yes. MW22, MW32 and MW42 include high-temperature and super-high-temperature versions. The required version must be selected from the confirmed workpiece temperature and duty conditions.

Why are two lifting magnets used in the lifting examples?

Two units distribute support along longer steel stock and help maintain a stable lifting arrangement. The required quantity and spacing depend on material length, mass distribution and the lifting-beam design.

What is the electrical operating basis?

The standard technical configuration uses a rated voltage of DC 220 V and a duty cycle of TD 60%. The full electrical and control arrangement should be checked against the final selected model.

When should MW92 movable-pole electromagnets be considered?

MW92 is considered where its movable-pole contact arrangement matches the material profile and the installation can support regular inspection and maintenance. The pole blocks must be able to move freely during contact with the workpiece.

 

 

Provide the steel type, material dimensions, temperature, single-piece mass, required handling length, operating cycle and crane/lifting-beam arrangement. These inputs allow the steel lifting electromagnet, temperature version and multi-magnet configuration to be matched to the actual handling task.

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