In outdoor material yards, it is always important to leave some spaces for trucks to load and unload goods under the L-type gantry crane. And the L-type gantry crane provides such a space-saving function for yards or the workers who are working in the yards. In the current situation, you can see some sites where using the A-type gantry crane has narrow places or spaces to lift or to load and unload products at their sites. The L-type gantry crane is here to help you resolve the problems, but not limited under these circumstances.
L-type Single Girder Gantry Crane-Ground Access
On a 20-meter span, for instance, an A-type gantry crane reduces the usable spaces roughly to 12 meters between the sloping columns. But the L-type single girder gantry crane maintains the full-length 20 meters of the span. So, this feature ensures that the truck can drive directly underneath the L-type single girder gantry crane. This can also help cut the loading and unloading time to improve the working efficiency.
Lightning-designed structure
Single girder structure, L-type sloping columns, and the lighter self-weight features allow the L-type single girder gantry crane to have less impact on the gantry crane’s foundation, which means you do not need to drive piles. So, this leads to less influence on the foundation. And the L-type single girder gantry crane is definitely lighter than the A-type double girder gantry crane.
But there are also some scenarios where the L-type gantry crane may not be used due to its lightweight designed structure. Wind locks will be required when installing the gantry crane in some harsh environments like typhoons or huge wind circumstances.
The guide on how to select the right L-type single-girder gantry crane
1.The requirements for limited spaces or spaces for trucks to load or unload: as we talked about the gantry crane above, if you need to save your ground space or to let the trucks load and unload goods underneath the gantry cranes, then the L-type single girder gantry crane can meet these situations.
2.The limited lifting capacity, span, and lifting height, and anti-wind capability: when the lighter lifting capacity is under 20 tons, the span is under 30 m, and you require less anti-wind capabilities, you can select this L-type single-girder gantry crane. This type of gantry crane requires more restricted operational environments, such as less wind, and the lifting capacity not exceed 20 tons. So, due to the limitation on the less anti-wind capability, you have to consider and choose the A-type single/double gantry cranes for your sites. That will be much safer for you.
So, you need to consider the A-type double gantry cranes when under heavy wind, heavy-duty using circumstances.
Frequently Asked Questions
1.What are the load and span limits of an L-type single-girder gantry crane?
The span is always under 30 meters, and the load is typically under 20 tons. You need to consider A-type gantry cranes when your requirements are beyond these values.
2.Does an L-type single-girder gantry crane require pile foundations?
Typically, the lightening-designed structures do not actually require foundations for the L-type single-girder gantry crane to install.
3.When should I choose an L-type single-girder gantry crane over an A-type?
When your site requires a 20-ton lifting capacity and a 30-meter span at most. Also, you should not use it in heavy wind circumstances, then you should consider the L-type single girder gantry crane.
4.Can an L-type single-girder gantry crane operate next to an existing overhead crane?
Yes, it can definitely be operated next to an existing overhead crane. This is also one of the most underused advantages. The single-leg design allows the crane to mount directly against a building column or share a runway with an existing indoor overhead crane. This creates a seamless indoor-to-outdoor lifting path without installing a second full gantry or reinforcing the entire building structure.
