Did you know
that there are two types of lifting magnet? Permanent magnets and the
electromagnets are the two types of lifting magnets used for various applications. First of all, lifting magnet is a
type of electromagnet, used to hold or move metal objects while in contact with
the magnet. It is also known as holding magnet as it come in large shapes such
as circular, rectangular, or specially shaped magnet used for handling pig
iron, scrap iron, billets, castings, rails and other metallic materials.
So, let us discuss
about some of the bread differences in their purpose and understand lifting magnet
better:
Permanent Magnets are
permanent which means that it uses a permanently magnetized material to be able
to build up the magnetic field. It
is used in workshops or work sites generally turn on and off with the use of a
lever. Electromagnets, on the other
hand, employ electricity to help charge the magnet and be able to hold
the material to the surface of the magnet.
Permanent
magnets are also good in handling flat materials and rounded parts which can
weigh of about 2,200 pounds. These are self-contained lifters and easy to move
around to various work sites. The only disadvantage of this type of magnet is
that they have a restricted lifting capacity.
Electromagnets
are made to run on a DC current, which needs a rectifier. These magnets uses
energized electrical coil wrapped around a steel core to align particles within
ferrous materials in a common direction, thus it forms a magnetic field.
Contrary to the permanent magnets, drawback for electromagnets is that they
require a constant power source, depending on its use. In case of a power
failure, it can be catastrophic.
Choosing the
right type of lifting magnets is very important, you must choose the magnets as
per your application. The wrong type of magnet can be extremely dangerous and
possibly even deadly. So keeping in mind the properties of the magnets, one
should be careful to choose permanent magnets and electromagnets.
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