If you need a gantry crane at your worksite, you will have to decide which one is best for the task you need it to perform. There are many companies which make gantries and so you will have to try and decide which one makes the best overhead gantry cranes and then see which different ones they have to offer. One of the largest manufacturers of gantry cranes is Ellsen and they have a very extensive range to choose from. Some of the different things you will have to consider when deciding which gantry would be best for you are:
- Location – Where will the gantry be operating, more specifically; do you need a rail mounted gantry, a gantry which can be fixed to the ceiling, a gantry with rubber tires to allow it more versatility of where it can operate or will you be using it in several different locations?
- Weight – What are the heaviest weights you will require the gantry to lift? Ellsen place their gantries in two categories with lifting capacities of 1 ton to 10 tons being placed in the small lift category and the capability to lift weights from 10 tons to 200 tons being placed in the heavy lift category.
- Weather Conditions – Although most gantries can be operated in a variety of weather conditions, Ellsen offer a gantry which is specifically designed to operate at times when the winds are strong. This is a popular choice of gantry for docks that are located on coastlines that experience strong winds on a regular basis.
Once you have taken all these different factors into consideration, you should be able to find a gantry on Ellsen’s website which will exactly fit your needs.
When using any type of gantry, safety is a major concern and so whatever restrictions the manufacturer places on the use of your chosen gantry, you should abide by them. Ellsen do of course take the safety of their gantries into consideration and so it is for that reason that their largest gantry, capable of lifting as much as 200 tons, has two cantilevers built into its bridge. One of the dangers with using a gantry is that the weight it lifts places too much strain on the gantry’s legs. Named because of its cantilevers in the bridge, the cantilever gantry is able to reduce strain on the legs due to the cantilevers. Although another gantry they offer also can lift 200 tons, does not have counter levers, the double girder gantry has two girders which also reduce strain on the gantry’s les. Often the double girder gantry is used as a single girder gantry, reducing costs, until the second girder is needed for the heavier weights. The gantries in the small lift category often only vary in size, depending on whether you want to lift just 1 ton or 10 tons. In all the gantries manufactured by Ellsen, regardless of size, safety has always been a concern during the design stages.