NEWS

EOT Crane = Overhead Crane = Bridge Crane

Time:2017-11-01

This issue may be too elementary for many of you, but you would be surprised at how many people incorrectly interchange one or more of the following terms.  This results in the customer meaning one thing while the design engineer is thinking of something entirely different.

The following quick review will make sure we're all on the same page and you get exactly what you're looking for.

Henan Santo Crane Co., Ltd.

 

 

EOT Crane = Overhead Crane = Bridge Crane

The main travelling structure which spans the width of the bay is the Overhead Bridge Crane. The bridge consists of two end trucks and a bridge beam (bridging between the two end trucks).

 

End trucks

Located on either end of the bridge beam are the end trucks. They provide a connection point between the bridge beam and the house the wheels on which the entire crane travels. These wheels ride on the runway beam allowing access to the entire length of the building.

Bridge Girder(s)

The horizontal beam of the crane bridge supports the hoist. There can be either one or two bridge beams, but we’ll get into that in a later issue.

 

Trolley

The trolley carries the hoist across the width of the building.  It traverses along the bridge girder covering the lateral motion.  Remember, the lengthwise travel is the bridge motion.

 

Hoist

The hoist is mounted to the trolley and performs the actual lifting function.

 

Runway

The runways are the gray item in the picture.  They provide the rolling surface for the bridge cranes to travel the length of the building.

 

Takeaway Points:

  1. EOT Crane, Overhead Crane and Bridge Crane are different titles for the exact same thing.
  2. Horizontal Motion is the bridge crane travel (lengthwise) and trolley travel (widthwise).  Lifting motion (up/down) is the hoist motion.
  3. Terminology matrix
  Building Width Building Length Building Height 
Motions Trolley travel Crane travel Hoisting motion
Hook coverage Bridge Crane span Runway length Lift

 


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