Double Girder Overhead Bridge Cranes | Benefits and Drawbacks
This is the second part of our two-post series on bridge crane types. Our first post discussed the benefits and drawbacks of Single Girder Overhead Bridge Cranes – check it out if you haven’t had a chance to read the post. This post will continue the discussion by laying out the benefits and drawbacks of Double Girder Overhead Bridge Cranes.
The design selection of an overhead crane system is one of the largest factors in the complexity and cost of the system. Because of this, it’s important to carefully consider which type of configuration will work in your application. With double girder overhead bridge cranes, there are two bridge beams instead of one. Like the single girder cranes, there is an end truck on both sides of the bridge. Since the hoist can be placed in between or on top of the cross girders, you can get an extra 18”-36” of hook height with this type of crane. While double girder cranes can be top running or under running, a top running design will provide the greatest hook height.
In general, double girder cranes are used for heavy-duty applications, which means components are more complex, driving the cost of this type of crane higher. There are other design considerations with double girder cranes such as building support structure, more material, and additional support columns that can also increase costs. Costs and applications considered, double girder cranes are ideal for heavy loads and frequent operations. These cranes are especially common in steel production facilities and shipping ports, but we have installed them in many different industries, indoors and outdoors.
ADVANTAGES
- Greater maximum span and capacity
- Extra hook height
- Ideal for lifting heavy equipment and frequent heavy loads
- Special features such as walkways, operator cabs, and lights can be added and supported
DISADVANTAGES
- Hook approach is lessened for both trolley travel and bridge travel
- More expensive because of extra material and complexity
If you have any questions about which configuration is right for your application, feel free to contact us via email or give us a call at (800) 509-6131. Already know what you're looking for? Request a quote and allow our team to send you a customized quote.