A double girder gantry crane is a lifting equipment that usually uses a hook to load, move and unload materials in different working places and adopts a high level of technology and its structure is made of high-quality raw materials. The crane has two beams and at least two supporting legs. This crane is also designed to carry out unique operations such as loading electromagnetic chunk and grab. It’s easy to install and transport this crane because it’s temporarily fixed on the ground. A double crane is suitable for heavy-duty operations and mostly lifts long, heavy and bulky materials.
Components of a double girder gantry crane
(a). Gantry frame- This comprises of:
Main beam
Supporting legs
End Beam
Cantilever
Saddle
Trolley traveling track
(b). Hoisting/lifting mechanism- This mainly consists of:
Reel
Lifting motor
Lifting Reducer
Wire rope
Brake
Hook
(c). Trolley traveling mechanism- This is made of:
Traveling motor
Running reducer
Wheel -sets
(d). Bridge traveling unit- Comprising of:
Motor
Brakes
Wheel sets( Juegos de ruedas )
Couplings
Driveshafts, and reducer
(e). Control system
The crane can be managed or controlled from a remote button box or a permanent cabin room.
Features of gantry crane
- It has a reasonable and simple structure thus avoiding dead weight
- High working efficiency, favorable performance, good appearance and adopts the latest technologies
- High stability and excellent durability and its components are reliable and saves energy
- It’s environmentally friendly, cost of running is low and has a large carrying capacity
- Works well in all occasions, whether indoor or outdoor.
- Has safety devices
- The operations are flexible and safe
- Easy to maintain
- The height and capacities can be customized
Applications of the birrail gantry crane
The crane is applied in material handling sites and is designed for both light and heavy duty, it can operate in either indoors or outdoors such as mine enterprises, warehouses, open storage yards, steel plants, rail terminals, container depots, cement plants, coal fields, harbors, and engineering industries. It’s mostly used to handle heavy and bulky items. Double girder gantry crane has many applications industrial, if you still have some question, you can click here to find answers: https://aicrane.com.mx/grua-portico-birrail/
Types of double girder gantry crane
- A-type
- Truss type
- U-type
(1). A-type double girder gantry crane
This can be classified into two broad categories:
-According to the form of use, that would include the hook type and the project type
-According to the structure of the main beam, that includes the box type and the truss type
Hook type
In this case, the crane has an auxiliary hook in addition to the main hook. An example is the MGA double girder gantry crane with the following parameters:-
- Lifting capacity: 5t-200t
- – Span length: 18m-35m
- – Lifting height: 6m-18m
- – Working class: A5
- – Traveling speed: 28m-45m/min
- – Lifting speed: 3.5m-12.5m/min
Project type
This machine adopts the structure of the truss(armadura) type, has less weight and wheel pressure, and its performance is reliable. Its parameters include:-
- Lifting capacity: 5t-200t
- – Span length: 18m-35m
- – Lifting height: 6m-18m
- – Working class: A5
- – Traveling speed: 28m-45m/min
- – Lifting speed: 3.5m-12.5m/mi
(2). Truss type double girder gantry crane
This crane is suitable for open areas and is considered to be strong
wind resistant. It adopts an open winch as its lifting mechanism. Its
parameters include:-
- Lifting capacity: 5t-200t
- Span length: 18m-35m
- Lifting height: 6m-18m
- Working class: A5
- Traveling speed: 28m-45m/min
- Lifting Speed: 3.5m-12.5m/min
(3) U-type
This has a unique feature of having a larger space between the two supporting legs. Example of such a crane is the MGU double girder gantry crane. And this type of crane usually has a large lifting capacity for transporting containers(contenedores). with the following parameters:-
- Lifting capacity: 5t-200t
- Span length: 18m-35m
- – Lifting height: 6m-18m
- – Working class: A5 or A6
- – Traveling speed: 38m-44m/min
- – Lifting speed: 5.9m-13.2m/min
Benefits associated with installing the double girder gantry crane in your site
- High loading capacity
- It’s easy to install and operate and ensures that operations run smoothly.
- Lower cost of running the equipment
- Maximum utilization of the working area and high capacity.
- The level of efficiency is very high and there’s no harm to the environment since it uses electricity.
- Safety is maintained and you enjoy a long time of excellent machine( excelente maquina ) performance.