If you have actually done your research study as well as figured out that an overhead crane system can enhance your centre's production or material handling processes, then you're probably starting to understand that there are all various sorts of overhead cranes.
Your head may be swimming attempting to sort through all of the details that are offered on overhead cranes, as well as you may be asking yourself, "What sort of overhead cranes do I require for my organization?"
Overhead cranes can differ so a lot in terms of arrangements and also specs. A crane that worked in a similar building structure, or comparable training application, might not be the finest crane for your centre or your application. Our goal for this short article is to use our 50+ years of experience to stroll you through the different sorts of overhead cranes including:
Bridge Cranes
Gantry Cranes
Monorail Cranes
Jib Cranes
Workstation Cranes
We'll likewise discuss the differences between usual terms such as "top operating," "under running," "single girder," and also "dual girder" and what they might suggest in picking the best crane for your facility as well as your lifting requires.
Our hope is that by the end of this short article, you'll have a much deeper understanding of exactly how each kind of crane jobs, exactly how they're utilized, and also the benefits as well as drawbacks of each sort of overhead crane.
What is an Overhead Bridge Crane?
You can probably visualize a bridge crane in your head-- it consists of 2 overhead paths built into the structure's support structure, linked by a solitary or double beam configuration, called a "bridge." The bridge is sustained on either end by an end vehicle, which trips on wheels along a path or beam of light-- enabling it to move up as well as down the bay.
Single Girder vs. Double Girder Bridge Cranes
An overhead bridge crane can be set up in a single girder or double girder style. In straightforward terms, a bridge girder, or beam, is the support structure that permits the trolley as well as lift to move from side to side along the bridge. The trolley is made use of two specifically position the hoist prior to increasing or lowering a lot.
To a degree, both single and also double girder cranes are equal in toughness and also sturdiness. The major difference between the two comes down to hook elevation, or how high in the air your hoist can lift. A double girder crane can supply more hook elevation due to the fact that the hoist is put on top of the girders, rather than listed below them.
There are some circumstances where a dual girder or single girder configuration may be the better option. We'll discuss several of these instances listed below:
Single Girder-- The bridge includes one girder beam supported on each side by an end truck. The cart and hoist are most typically underhung-- implying they operate on the bottom flange of the bridge. They also often tend to be less costly because of:
Just one girder is required to relocate the trolley
Reduction in freight expenses
Faster instalment
Easier hoist as well as trolley layout
In the instance that a crane requires to handle even more than 15 heaps, or the span is even more than 65 feet, a dual girder arrangement might be the much better alternative.
Summary
A crane that worked in a similar building framework, or comparable training application, might not be the finest crane for your facility or your application. An overhead bridge crane can be set up in a single girder or dual girder layout.