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Ixtur LI-120
Automatic Lifting Magnet
LI-120 features
Holding Force and Lifting Capacity
Holding force and rated lifting capacity of Automatic Lifting Magnet LI-120 can only be applied to such lifting
situations where the forces are perpendicular to the magnet's lifting surface. Material properties and thickness
of the load also affect the holding force, as well as any non-magnetic material that separates the magnet's
lifting surface from the surface of the load, for example air. Surfaces must be clean and the air gap zero to
achieve maximum holding force. The load surface must be flat and it must occupy the lifting surface of the
device completely.
Maximum holding force and lifting capacity of Automatic Lifting Magnet LI-120 are rated with steel EN S235,
with minimum material thickness of 12 mm.
Lifting capacity is proportional to the material thickness, which is presented later in this user manual in chapter
'Material Thickness'.
Lifting capacity is proportional to the air gap, which is presented later in this user manual in chapter 'Air Gap
and Surface Quality'.
Read carefully the characteristics related to the magnet's lifting capacity before deployment of
Automatic Lifting Magnet LI-120
Lifting capacity of the device must not be exceeded
The device should be centered with the load to minimize inclination and to ensure safe lift
An inclined load causes a twisting force on the device which reduces the lifting capacity
An inclined load may slide which could cause the load to drop
The forces caused by acceleration must be considered during lifting. For example, sudden
raising or lowering cause stronger forces than slow and smooth moves.
Material Properties
Magnetic characteristics of the material being lifted affect the magnet's holding force. Primary components of
holding force are the intensity of magnetic field and the magnetic characteristics that define how well the lifted
material conducts the magnetic flux.
Holding force and lifting capacity of Automatic Lifting Magnet LI-120 are rated with steel EN S235. Most other
steel materials produce lower holding force.
Hardened steel conducts less magnetic flux than equivalent unhardened steel. Therefore, hardened steel has
lower holding force.
Lifting capacity of 120 kg is determined with steel EN S235. Most other magnetic materials result
in lower holding force.