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Konecranes RailQ Runway Survey optimises crane safety and service life

22-07-2021
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A crane operating on poorly aligned rails is prone to premature wear, reduced performance and safety risks.

Left unattended to, runway alignment issues can reduce the service life of a crane, meaning these ultra-reliable lifting devices aren’t delivering their maximum value.

To ensure cranes are being used to their full potential in demanding industries including manufacturing, materials handling, automotive, construction, steel, and more, global crane service leader Konecranes is introducing its latest and most advanced RailQ runway survey.

“Konecranes RailQ Runway Survey is the safest, fastest and most accurate runway survey available. It has been designed to deliver accurate information on the alignment of a crane rail, and expert recommendations for any needed corrective actions,” said Mr Mark Beckwith, Australian Service Operations Manager, Konecranes and Demag Pty Ltd (a member of the Konecranes Group).

RailQ is also used for aesthetic and dynamic testing to diagnose some common issues for factory cranes. In this scenario, the runway is first measured when cranes are idle, and then measured again with the crane driving behind the robot carrying a full load. The data collected shows the difference between the unloaded and loaded situation of the runway.

“In many cases, this test will reveal significant structural deflection of the pillar supports, as the columns sink to varying degrees when the crane is fully loaded. Konecranes’ recommendation in this situation is usually to rebuild the runway supports. But it’s important to know whether all, or only some, of the supports are causing the problem,” Mr Beckwith said.

“Measuring is knowing. RailQ goes beyond guesswork with a proven, accurate and reliable system to assist with finding answers and making decisions. When you need to go to a purchasing department and make a case for an expenditure that is critical to your business, it’s important to have all the facts.”

Why do cranes travel incorrectly along a runway?

“If a crane is experiencing excessive wear on wheels and rails, has broken wheel flanges, or it requires frequent replacement of bridge couplings and axles, it’s worth taking a deeper look at rail alignment,” Mr Beckwith said.

Some reasons why a crane does not travel correctly on the runway include:

• misaligned or worn rail
• missing clips
• worn pads
• uneven, bent or twisted runway structure (due to column settlement, overloads or impacts)
• improper installation
• corrosion.

“Cranes should travel or track along their runway rails with a minimum of skew and without binding. Improper tracking leads to premature wheel and rail wear, resulting in costly repairs and downtime, as well as inefficient and suboptimal crane operation,” Mr Beckwith said.

RailQ robot heightens safety

To further enhance the safety of a RailQ Runway Survey, Konecranes utilises its proprietary remote-controlled robot trolley, Roborail, to assist with data collection so it’s not necessary for a human to walk the rails and take measurements manually.

“Roborail helps to minimise downtime and increase the safety of the survey. It provides information on runway span, straightness, elevation and rail-to-rail elevation,” Mr Beckwith said.

Advanced software provides recommendations

Once the robot has performed its analysis, data is fed into Konecranes’ award-winning KC Trail software, which provides easy-to-read reports with 2D and 3D pictures of the crane’s runway alignment condition. It can generate a report and give a recommended correction (or even several correction options) at the press of a button.

RailQ Runway Survey components

A typical Konecranes RailQ Runway Survey includes:

• a visual inspection of the crane runway
• measurement of the alignment of crane runway.
• calculations based on measured data with proprietary analysis and visualisation software
• 3D and 2D visualizations of the runway rails
• identification of straightness, span or elevation issues.

Konecranes engineers review all collected data and provide recommendations for corrective actions.

“One of the major benefits of Konecranes’ RailQ service is that it’s a one-stop-shop. Instead of approaching three companies – a surveyor, an engineer, and a data analysis expert – Konecranes can do all three components and in most cases present the results within 24 hours,” Mr Beckwith said.

 

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