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Lifting Magnets - Permanent Type

Lifting Magnet

Permanent lifting magnets from Lifting Gear Direct are the ideal tool for the lifting of mild steel material in machine shops, workshops and warehouses.

They can be used on flat material and cylindrical sections. Very easy to install one man installation just hook to your crane or hoist hook and you are ready to lift.

Safety locking lever as standard to stop the accidental release of the load.

Low self weight contact area not marked small dimensions.

6 capacities of magnet lifters

Technical Data

Lifting Magnet Dimensions
 DimensionsWeight
ABCD 
mmmmmmmmKg
LGD1122691851606.0
LGD31929522525015.5
LGD523212027025029.5
LGD830215432045053.0
LGD1033215432045060
LGD20392196420450126.0
Correct Operation
Correct operation of lifting magnet
ModelFlat MaterialRound Material 
Maximum capacity SWL Minimum thickness to obtain Max. SWLMaximum length of materialMaximum capacity SWLDiameterMaximum length of materialTear off force
Kgmmmm Kgmmmm Kg
LGD110015200050200 - 3002000300
LGD3300192500150200 - 3002500900
LGD5500253000250200 - 40030001500
LGD8800353500400200 - 40035002400
LGD101000403500500200 - 40035003000
LGD2020005535001000200 - 40035006000
Air gap graph

Air Gap:

These lifting magnets create high magnetic forces which permit the magnet to clamp materials through the air gap; these air gaps however do decrease the magnetic performance, this is because they provide a barrier in-between the contact surfaces. Air gaps can transpire in a variety of ways, such as dust, paint and mill scale. Inadequately machined surfaces will also make up an air gap.

The lifting magnet will need to be down-rated in capacity according to the adhesive force / air gap diagram as shown.

Max Capacity Graph

Material Thickness

When lifting magnets are used to lift materials which are much thinner than the recommended minimum thickness, then the clamping force of the magnet will be considerably lower. Please see the diagrams for detailed information

Reduction of capacity for material type% of capacity
Temperature ≤ 60°C100%
Humidity ≤ 80%100%
St 5295%
Alloy Steel80%
High Carbon Steel70%
Cast Iron45%
Nickel45%
Austenitic Stainless Steel0%
Brass0%
Aluminium0%

Contact Area and Material Type

Full lifting capacity is only achieved when the lifting magnet has complete contact with the item being lifted. Performance will be affected if the surface of the materials to be lifted contains holes or is uneven. A trial lift must be carried out in these situation to establish correct lifting prior to transporting the load. Some materials will have differing abilities to carry magnetism. Apart from mild steel, a reduction factor needs to be applied so that the clamping force can be effectively calculated.

Relevant EC Directives - EC Machinery Directive 2006/42/EC
Standards - ISO12100-1:2004; ISO12100-2:2004; EN349:2008+A1; EN13155:2007; BGR500
Quality Assurance - DIN EN ISO9001:2000

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