What Is a Truss Gantry Crane?
Truss gantry crane is the crane that has the frame to decrease the wind area lift and load in some harsh environments like heavy-rain, heavy-wind, etc. Typically, this gantry crane has a strong anti-wind ability that can protect the personnel and crane device safe. Truss gantry crane adopted the triangle-shape to strengthen its resilience, light-design structure to ensure its light self-weight. Comparing to the box girder gantry crane, truss gantry crane is more stable, versatile for using it, particularly in outdoors.
Key Structural Components
Truss gantry crane is typically consist of these components below:
1.Truss Girder / Main Beam
This is the main structure of the gantry crane. And it utilizes the triangle-shape structure to provide more robust strength to support its load.
2.Support Legs & End Carriages
Support legs and end carriages combined together as a triangle shape as well. The frames on the support legs are also the triangle shape due to this shape’s stable structure.
3.Hoist & Trolley System
CD/MD hoists are always used on the trolley system. The hoist motor is installed on the CD/MD hoists to provide the traveling speed and lifting speed on the main beam.
4.Travel Mechanism
Travel mechanism has two parts, one is the hoist travel, the other is the Support Legs and End Carriages travel mechanism. The other one’s motor is installed on the end carriage. So, there are two types of travel mechanism on the truss gantry crane.
5. Electrical & Control System
One of the most electric power supply is the cable reel. The electricity will be transported into the gantry crane motor to provide the electricity. Meanwhile, the there is the other power supply system that is called cable trolley, which provides the electricity to the hoist motor to support the hoist to lift and load.
Advantages of Truss Gantry Cranes
1.Lightweight & Cost-Effective. Due to its lightweight, you will pay less on the shipment charge. So, you will have less costs on the whole process from purchase to the maintenance.
2.High Wind Resistance. Truss gantry crane’s triangle shape help decrease the wind area so that you can prevent the accidents made by heavy wind. Of course, it is not good to use this gantry crane in the typhoon weather. Truss gantry crane will be damaged by the harsh weather condition.
3.Large Span Capability. Due to its stable structure, you can lift some goods when adopted the large span on this gantry crane.
Common Applications
The truss gantry crane can be used in these scenarios below:
1.Construction Sites & Infrastructure Projects、
2.Warehouses & Logistics Centers
3.Shipyards & Ports
4.Railway & Highway Maintenance
5.Manufacturing & Assembly Plants
Like some steel factories, for example, you can see many truss gantry crane at their job site and even you can see the operation to lift steels. Not only this scenario, truss gantry crane can also be widely used in another situations like we talked about above.
Truss Gantry Crane Design Considerations
1.Duty-class: this is very essential for every gantry crane operator to consider, and you should select the right operating duty class to match your job site situations. Otherwise, there will be more risks on the accident.
2.Anti-wind compatibility. This is a very crucial compatibility that yous should consider when you decided to buy. Thanks to its stable frame, you do not need to worry about this ability whether it is enough for you to operate.
3.Material Selection. It is better for you to choose the steel grade, welding standards materials to be as the truss gantry crane’s frame materials.
4.Compliance with Standards. This is extremely vital for you to consider because this certificate will affect your importer rights. If you do not have it or you do not get these certificates from your suppliers, it is very dangerous for you and you will get punished when import goods without certificates.
How to Choose the Right Truss Gantry Crane?
1.Make your demand list. You have to know your requirements on load spectrum, span, lifting height, usage frequency, etc
2.Consider the supplier selection standards. Check out if a supplier has the certificates, their factory environments. But most important, you should know if their service or products can resolve your demands or problems.
3.Price. This is also the important factor you should consider before buying any truss gantry crane. Check out if the price is more higher than your budgets.
FAQs
1.What is the maximum span of a truss gantry crane?
Generally, you can customize your span between 18m-35m. Of course, the thing you have to know is that you must balance your lifting capacity and span, in order to avoid the main girder fracture/breakage
2.Is a truss gantry crane cheaper than a box girder crane?
Not exactly. The price will vary from many factors like span, lifting capacity, duty class, voltage, etc. So, it is better tom combine all the factors together before any decision making.
3.Can truss gantry cranes be used indoors?
Yes. But you should share your workshop dimensions, images to us. We will help you calculate the right truss gantry crane dimensions for you.
