Exploring Bridge Cranes: Single Girder or Double Girder?

Did you know that improper crane selection can cause fatal accidents? Selecting the right crane for your business is not only important but fundamental to the success of your company. So what type of crane is best for you? 

Don’t worry with this guide; you can find out! From the advantages to disadvantages of single and double girder cranes, you can learn which of these bridge cranes is worth the money. 

Now, are you ready to get started? Here’s a quick look at overhead cranes: 

Single Girder Crane 

In a single girder crane, the bridge consists of a single girder beam that’s supported on either side. Due to its design, the trolley and hoist are underhung.

Therefore, one of the common myths of single girder cranes is that they don’t have the same excellence as double girder cranes. However, if designed correctly, a single girder crane can be ideal for any company that needs a light to medium crane.  

Since single girder cranes are compact and lightweight, they use less material resulting in cheaper installation costs. Also, these cranes have less deadweight; thus, they can use lighter platform systems and strap into existing structures. 

Pros of the Single Girder Design 

  • Easier to service, maintain and install. 
  • Cost-efficient due to simplified design and fewer freight costs. 
  • Perfect for warehouses, material yards, and manufacturing facilities. 
  • Less wear on truck tires and beams.  
  • The best economical choice for light to medium use cranes.  

Cons of the Single Girder Design  

  • Features like lights, service walks, and heavy components can be expensive or difficult to install. 
  • It has a low capacity rating. 
  • The hoist is positioned below the cross girder, which limits the hook height. 

Double Girder Crane 

In a double girder, there are about two girder beams that create the bridge. In fact, they’re supported on either side by an end truck. In most cases, both the trolley and the hoist can run upon the rail when it’s installed above the bridge. 

Double girders can be designed to be either top-running or under-running. However, if you’re thinking of purchasing this type of crane, understand that it will be complex and expensive since it’s designed to handle heavy applications. To learn more about heavy-duty cranes, read on here

Pros of the Double Grinder Design 

  • Enhanced hook height far above a single girder crane.  
  • It has no limits on capacity. 
  • It can be used both indoor and outdoor for gathering iron and steel or mining. 
  • Perfect for lifting heavy loads. 

Cons of the Double Girder Design  

  • It’s costly because of the additional structural components and material costs. 
  • There are more additional costs due to the freight and installation versus the cost of a single girder crane.  

Choose One of These Bridge Cranes Today 

Choosing which crane is best for your business can be difficult. However, carefully consider, do you need a crane for small loads or heavy loads? How much do you want to pay? What type of features would you like it to have? 

These questions will help you narrow down the best crane for your business. Now, If you’re interested in learning more about bridge cranes, visit our website today. We look forward to helping you!