Gantry cranes are basically used to lift heavy objects in various industries. They are built atop a gantry, which is a work space where you can straddle an object. Gantry cranes are known as portal cranes; referring portal to the empty space straddled by the gantry.

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Gantry cranes are basically used to lift heavy objects in various industries. They are built atop a
gantry, which is a work space where you can straddle an object. Gantry cranes are known as
portal cranes; referring portal to the empty space straddled by the gantry. Gantry cranes lift the
load using a hoist that is connected on the horizontal beam or girder. The beam is supported by
pillars at both sides and the hoist can carry objects from one end of the beam to another. The
cranes are powered with wheels or rails that can help move it to different locations.
There are various types of gantry cranes available out of which certain types are capable of
lifting the heaviest loads while some types are used for tasks such as lifting engines out from
vehicles. Here are the basic types of the gantry crane.
Fixed Height Crane
As the name suggests, this type of gantry crane has a beam fixed at a specific height. The crane
is capable to lift objects till particular height. This fixed height crane is usually equipped with
wheels and can be moved in the work area.

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Adjustable Height
In adjustable height type, the support pillars of the beam have grooves on it. The horizontal
beam can fit onto the grooves to adjust the reach ability of hoist to varying heights. They are
also equipped with wheels and are used majorly in the construction industry.
Single Girder
Single girder cranes are mostly used to lift objects in small manufacturing plants and
warehouses. In single girder crane, the girder is fastened on the support pillar and the height of
the hoist is lower than that in double girder crane type. There are lateral braces present here for
strength.
Double Girder
Double girder cranes are often used in large industries to carry hefty objects. Here, there are
two horizontal beams or girder with hoist attached in between the two beams. However, in
single girder, the hoist is attached under the beam.
Rail Mounted
This gantry crane type is majorly used in shipping, steelyards, and locomotive industry. In this
type, rails are present on the ground and the hoist is mounted overhead. It is mostly powered
by electricity or crane.
Cantilever Crane
In this type, there is more than one girder. Apart from the horizontal girder, there are girders on
one or both sides that run cross ways on the horizontal beam.
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