When you install a gantry crane, there are two specific types that might be the most advantageous to own. These are called underhung and top running overhead cranes. Each of these provides you with both benefits and drawbacks.
As you are deciding between the two different types of overhead cranes, it’s good to know a little bit about how they work. Once you understand their configurations, you can then make a logical choice as to which one would be best suited for your project. Let’s begin with an overview of top running overhead cranes and compare them with underslung cranes to reveal the difference.
What Is A Top Running Overhead Crane?
The primary purpose of this type of crane is to provide the power and stability needed to lift extremely heavy loads. They are designed to operate on what is called a fixed rail system. Others may refer to it as a track system installed on either side of the girders. Inside of the runway beams will be end trucks which will enable the beams to move back and forth. Essentially, it is a conveyor belt system of sorts that allows you to move the crane, and at the same time move the object that you are lifting.
What Is An Underhung Crane
Very similar to a top running overhead crane, these are also going to allow the beams to move laterally throughout the facility. The differences they are not positioned on a runway been. They are literally attached to the bottom of an I-beam that is running the length of the facility. The load will be suspended from the single or double bridge crane. Attached to the beams will be the trolley, hoist, and electrical apparatus. The primary difference between the two is that one runs on the top, and the other runs beneath I-beams that are part of the supporting structure.
Which One Should You Use?
The reason that you would use one of these opposed to the other is simply about how much space you have overhead. There are some buildings that do not have a tall roof. Since there no space above the I-beam, a runway beam cannot exist. For that reason, you would use an underhung crane. If there is room up above, then a top running bridge crane would be the better choice. Either one of these is going to provide you with the same mobility when lifting and moving different components.
Understanding the difference between an underhung and top running overhead crane allows you to decide which one would be best suited for you. If you have very little overhead space, the underhung overhead crane would be the one to install. If you have plenty of room, the top running overhead crane could be installed instead. Once that is determined, you simply have to find a reputable crane manufacturer that can offer you a deal. After it is set up, you will be able to complete your project or perhaps improve production levels at your place of business.