A single girder gantry crane is an important machine in the lifting equipment industry. It’s an equipment that assists in loading, transporting and unloading of materials within various outdoor occasions. The crane is made of one main beam and uses a hook to lift items. However, the product has been developed and designed with some traits for heavy duty and therefore it falls under the working class of light, medium as well as the heavy. The product is made of compact structure and is lightweight. This crane is suitable for working places such as in railway, warehouse, material yards, and workshops.
Components
It’s composed of:
Main beam
End Beam
Support legs
Crane traveling organ
Crane trolley
Hoist(polipasto)
Electric equipment
Types of single girder gantry cranes
This can be classified into the following
- Full gantry crane
- Semi-gantry crane
- Container gantry crane
- Shop gantry crane
- Port gantry crane
All these types fall among the following models
. MH-Type
. BMH-Type(tipo BMH)
. L-Type
. European -Type
(1). BMH type single girder semi-gantry crane
The crane is used to handle bulk materials and consists of two controlling forms- ground and remote system. Its features include:-
Lifting capacity: 1t-16t
Span length: 5m-20m
Lifting height: 6m-18m
Working class: A3 or A4
Traveling speed: 20m-30m/min
Lifting speed: 3m-8m/min (or) 0.3/3m-0.8/8m/min
(2). MH Type electric hoist gantry crane
This crane has been designed in both medium and small size and is mostly applied in rail operations. It consists of two controlling forms, that is, the ground and the operation/driver’s room and if both are put to work, operations runs very fast and smoothly. It’s mostly used together with the CD1 and MD1 electronic hoist models. Its parameters include:-
Lifting Capacity: 3t-16t
Span Length: 12m-30m
Working Temperature: -20 degrees to 40 degrees
(3). L Type single girder gantry crane
This has two legs that are L-Shaped and they are responsible for offering support to the complete single=beam structure. It’s considered to perform better in railway sites and outdoor freight yards. Its parameters include:-
Lifting capacity: 5t-50t
Span length: 18m-35m> Lifting height: 6m-18m
Working class: A4 or A5
Traveling speed: 39m-48m/min
Lifting speed: 5.9m-11.2m/min
(4). Truss-type single girder gantry crane
This crane is A-shaped and is wind resistance. Parameters include:-
Lifting capacity: 3t-26t
Span length: 12m-30m
Lifting leight: 6m-18m
Working class: A3 or A4
Traveling speed: 20m-30m/min
Lifting speed: 3m-8m/min (or) 0.3/3m-0.8/8m/min
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General features of single girder gantry crane
- It has reasonable structures with favorable performance
- It starts and stops smoothly
- The traveling crane is reliable and safe with long service life
- It produces low noise and the cabin is well positioned for a better view
- Easy to install and requires minimal maintenance
- It’s lightweight thus easy to transport
- It’s easy to operate
When it comes to matters of safety, the crane is equipped with the following
Protection device for weight overload
High-quality materials that meet the international standards
A switch that limits the traveling of the crane to the required point
It has settings for lowering the voltage
A system that stops the crane in case of an emergency.
Benefits of this crane
- Its simple structure makes it easy to install and maintain
- Since it works outdoors, you get to achieve high space utilization because the coverage of the lift can freely be expanded.
- The crane has strong versatility as well as adaptability
- High efficiency accompanied by low cost
- Reliable performance
Factors to consider when buying the right single girder gantry crane(grua portico monorriel) to buy.
(1). Have in mind the specifications that you want for your crane like the:
. Span length
. Capacity
. Size
. Working class
. Lifting height and speed
. Hook approach
(2). Operating environment- In this case, you may consider the runway design as well as the structure of the crane, For instance, you can choose from rail mounted, crane with cantilever or without and so on.
(3). The required control methods. Whether it’s remote, pendant control or cabin operation.
(4). Also look at the safety measures, maintenance cost as well as the set regulations to be followed.