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Top Running Overhead cranes

 

Overhead cranes

Do you need to lift and move heavy loads safely?

Does your building have available overhead space that you want to use efficiently? Are you looking for a reliable lifting solution designed to last, even in an intensive environment?

Top running cranes are one of the most commonly used industrial lifting devices today.

 

What is a top running crane?

A top running overhead crane is an industrial lifting system where the crane rests on rails installed at height, usually on beams attached to a dedicated supporting structure. The runway tracks are usually self-supporting or integrated into the building structure.

 

Technical specifications

Lifting capacity: up to ~ 125 metric tons

Span: up to ~ 40 meters

Lifting height: variable

Hoist type: chain or wire rope

Runway tracks: Solid square rails or ASCE type mounted on runway beams

 

Possible configurations:

  1. Single beam or double beam
  2. Several connections possible, depending on building
  3. Other capacities, spans and lifting heights available on request
Single-beam connections
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Double beam connection
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  • Top-running-double-cote-300x250
  • Top-running-double-cote-and-encastre-300x250

What are the advantages of
top running overhead cranes?

High lifting capacity and span.
  1. Flexibility of configuration, single- or double-girder, with a variety of connections depending on the building, or with a maintenance bridge.
  2. Combined with a self-supporting structure, it's ideal for buildings that weren't designed to accommodate an overhead crane.

 

What are the disadvantages
of top running overhead cranes?

  1.  
  2. The columns of a self-supporting structure take up a lot of floor space.
  3. No cantilever possible
  4. Requires rails and a structure capable of supporting loads, unlike a forklift truck.

 

Do you have a project?

Request an evaluation of your project by filling in the form at the bottom of the page.

 

At Premium Industrial Group, we support you in configuring your overhead crane, with a single objective: to offer you the best lifting solution for safely lifting and moving your equipment.

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Learning center

Whether you're an expert or know nothing about cranes, you'll find everything you need to know HERE.

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Frequently asked questions

01.
How to determine the frequency for frequent and periodic inspections?

The interval between each frequent and periodic inspection may vary depending on its duty class. To determine the frequency of these two types of inspections, you must identify the duty class of the lifting equipment (Class A to F) and refer to the CSA B167-16 standard (section 6.4.1 for frequent inspections and section 6.5.1.1 for periodic inspections).

Additionally, the inspection frequency should also take into account the actual duty class of the lifting device, which may differ from the class for which it was originally designed.

For more information on the topic, see our article: classifications

 

02.
Can the lifting capacity of an existing overhead crane be increased?

Yes, it’s sometimes possible, but it’s not guaranteed.

Increasing the capacity of an overhead crane involves more than just replacing the hoist. The entire system must be evaluated to ensure that every component can handle the increased load. Here are the main elements to check:

  • Is the main girder designed for the intended load?
  • Are the end trucks (wheels and gear motors) compatible with a higher capacity?
  • Can the runway, rails, and supporting structure withstand the additional stress?

In some cases, a well-planned modification can eliminate the need to purchase a new crane. In others, the costs or risks associated with the upgrade may be too high. An inspection can sometimes help determine whether an upgrade is feasible or if replacement is the better option.

Our recommendation: Before making any decisions, have your system (crane and runway) evaluated by a qualified engineer.

03.
Do you need an RBQ license to install an overhead crane in Quebec?
Generally, an RBQ license is not required to install an overhead crane in Quebec, as it is considered production machinery rather than a construction project. However, if the installation involves structural modifications, such as welding or reinforcing the building structure, an RBQ license may be required. For more details, you can read our full article here: Do you need an RBQ license to install an overhead crane in Quebec?