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lifting-and-handling-magnets

Hand Controlled
Lifting Magnets

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Using lifting magnets is one of
the quickest and most efficient
methods of handling and moving
steel components or loads.

Our range of permanent magnetic lifters use manually
switchable magnetic technology (no electricity required) and
tested to hold three times their labelled safe working load (SWL).
With no running costs, permanent lifting magnets can
significantly increase your lift rate and reduce operating costs.

Operation

Each of our lifting magnets is manually operated, allowing the user to quickly and safely switch
between the magnetised and demagnetised state. Safety is the most important consideration when
choosing a lifting magnet and each of our products is supplied with a data sheet, on-device safety
information and safety catch to prevent accidental release.

PIC A. The centre rotating magnet is turned
180 degrees to form a magnetic field which
creates an internal partially closed circuit,
reducing the magnetic field on the base of the
unit and effectively turning it off.

PIC B. The centre rotating magnet is
turned 180 degrees with opposite
polarities facing the outer magnets, this
creates magnetic repulsion and a much
larger depth of magnetic field which
effectively turns on the unit, ready to
magnetically attach and lift.

 

Capabilities

In our range you will find lifting magnets capable
of holding steel loads from 125kg up to 2 tonnes
in optimum conditions. Influenced by thickness and
surface quality of the component. Before operation, it
is necessary to find out the percentage of the steel
thickness-lifting capacity according to the thickness
of the component and capacity curve (below). If its
surface roughness Ra is less than 6.3um, the lifting
surface gap will not exist, the lifting capacity will be
100%. If the surface roughness Ra is above 6.3um
or even worse, the lifter surface gap should be
estimated. Find out the percentage that lifting
capacity of the lifter may reach from the air
gap-lifting capacity curve shown in the performance
chart. Combine these two factors and calculating
the lifting capacity that the lifter may reach.

Considerations

Lifting magnets are influenced by the thickness and surface quality of the component and therefore
careful consideration should be taken and a full risk assessment undertaken. The lifting magnets are
tested on mild steel with a thickness of 60mm, any reduction in steel thickness may result in a
reduction in lifting capability. Additionally, for optimum performance, surface roughness (Ra) should
be less than 6.3um. Use our handy graph to assess potential lifting capability:

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* AIR GAP is defined as the space between the lifter and the steel surface being lifted.

Options

An efficient substitution to
slings, chains, or hooks, the
hand controlled permanent
lifting magnet range gives users
quick and easy movement of
steel and ferrous parts.


A more efficient substitution to
slings, chains, or hooks, the
hand controlled lifting magnet
gives users greater control while
reducing load damage.

Need more
information?

If you require advice or clarification on the right
lifting magnet for your application please call our
technical sales team on 0845 519 4701 today!

While our range of lifting products have been tested to support three times their SWL (Safe Working Load) users should use caution and risk assess
the use of this magnet as part of their Health and Safety policy. Given the number of variables that can affect the attractive force of this product such
as material thickness, material permeability and surface area in contact with the unit we recommend conducting your own tests before use. Further
to this, the magnets should never be used to lift materials over anyone or anything that may be injured or damaged in the event that the attractive
force is compromised. Magnet Expert Ltd accepts no liability for injury to persons or damage to property caused by the use of this product.