What is the difference between gantry crane and overhead crane

Bridge cranes take the cake when it comes to heavy duty lifting. Some bridge cranes are rated for up to one hundred tons! That is a lot of material. Gantry cranes are not as capable when it comes to lifting. They can still lift heavy loads, usually going up to 15 tons, but that is a far shot away from the ton limit on some bridge cranes.

Now, all that lifting power does not come cheap. Bridge cranes will set you back at least fifteen thousand dollars and can go over one hundred thousand dollars if you want one of the strongest bridge cranes. Gantry cranes start as little as two thousand dollars and go up from there. All types of overhead cranes have some things in common. In case you need a refresher on how a bridge crane or gantry crane works, the following points will help you.

Because of how overhead cranes are built, they can reliably lift objects that are very heavy in a way that is safer than many lifting alternatives. The hoist is like the muscle of the crane. It does the lifting. The more powerful the hoist, the more it can lift. Without diving too deep into the mechanics of hoists, you can think of a hoist working similarly to a car winch. If the hoist is the muscle of the crane, then the girder would be the bone structure.

The girder is the beam on which the hoist rests. Specifically, this girder is called the bridge girder. C-shaped legs made of inclined or curved shape, the purpose is to have a larger horizontal space, so that the goods smoothly through the legs. Double girder gantry crane: double gantry crane carrying capacity, span, the overall stability is good, variety, but its own quality and the same weight compared to the single girder gantry crane to be larger higher cost.

According to the main beam structure is different, but also can be divided into two kinds of box beam and truss. At present, the general use of the box-shaped structure. Any detailed information you want to know about gantry cranes and bridge cranes, welcome contact us.

Boat weight t : 2. Boat size m : 3. Wharf size m :. What rated load of hoist you want? How about the lifting height and power source? How many hours does your hoist work per day?

These legs travel on rails that are embedded in, or on top of the floor or ground structure. A gantry crane is ideal when you require a lightweight and quick knockdown crane for applications that require portability and corrosion resistance. Gantry cranes are commonly found in shipyards, railyards, special construction sites like where a bridge is being built, or in places like steel mills where overhead room may be an issue.

Gantry cranes do the job efficiently and economically and are ideal lifting solutions because:. Most commonly found in a production or assembly line, this type of crane uses a trolley to carry the hoist along a single path. Monorail cranes do not utilize a bridge or girder design—instead, the trolley is designed to connect to an I-beam, often already built into the ceiling structure, and runs along the flat surface flange on the bottom of the beam.

They can also utilize a configured support structure as well. Material can be run back and forth in a straight line, or the rails can be designed with curves, branches, switches, and with changes in elevation.

Monorail cranes follow a singular path and are designed for lifts that do not require the side-to-side trolley movement provided by the bridge in an overhead or gantry style crane. Monorail cranes are perfect for lifting applications where a full-blown crane design is not required. Jib cranes come in a number of different styles and types but do not utilize a runway or track system.

Jib cranes are space-saving, economical, and are ideal for jobs like maneuvering or moving items for assembly within a smaller radius.

The best way to determine what type of jib crane is best for your application is to consider the following:. Workstation cranes are designed to allow the operators an ergonomic means of moving or lifting loads with limited effort in a smaller size work area.

Workstation cranes are typically lighter-duty systems—lifting materials from lbs. They can be built and installed easily using a modular design for greater flexibility and do not require an existing support structure for installation. Or, maybe you realize that there will be some additional fabrication or engineering required to install a crane into the existing structure of your building. Most importantly, take the time to consider the following when considering the different types of overhead cranes:.

At Mazzella, we design and build world-class overhead crane systems. We have over 50 years of experience in the overhead crane industry and can build custom solutions ranging from light-duty economical cranes to large-capacity, high-duty cycle cranes. Bridge Cranes If you are a production facility a Bridge Crane will likely be the solution you are looking for. Use our vast product knowledge to your benefit and let us help you select the right system for your job. Want to see lifting solutions in action?

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