Condition Analysis lifts cranes in the Port of Norrköping

Each year handled about 4 million tons of cargo comes through the Port of Norrköping. Eleven large port cranes move this cargo and they are exposed to heavy wear and tear. The Port of Norrköping wanted to check the condition of their cranes and find out how long they would be safe to operate. Inspecta was invited to carry out a condition analysis. It helped the Port of Norrköping to decide on future maintenance and investment.

- We needed to get a status update of the entire crane park and make a deeper analysis in order to plan our action in the future, says Raymond Axelsson, Technical Director, Norrköping Port and Stevedoring, (NHS).

Picture: Norrköpings Hamn & Stuveri
Picture: Norrköping Port and Stevedoring, (NHS)

- Each year, the Port of Norrköping moves nearly 4 million tons of cargo. Large industrial and commercial companies, shipping lines, freight forwarders and carriers are all dependent on the port's cranes shifting their goods in an efficient, safe and reliable manner.

Norrköping Port and Stevedoring, (NHS)
Picture: Norrköping Port and Stevedoring, (NHS)
- Our cranes lift heavy and valuable loads. We have Sweden's strongest harbour crane that can lift 350 tonnes on its own. We have to be 100% sure that they can all work and lift safely, said Raymond Axelsson, NHS.

Inspecta was therefore commissioned to do a condition analysis of eight of the eleven track-mounted cranes’ steel structures, machinery and electrical equipment. Magnus Dahlberg, from Inspecta Technology, put together a group of analysis engineers, inspection engineers, testing engineers and electrical engineers to provide the NHS with a comprehensive and complete picture of the cranes' status.

Comprehensive picture gained through inspection and testing

Roger Wibert, Inspecta Technology
Roger Wibert, Inspecta Technology
- The experience our engineers have of cranes, steel structures and from other heavy industries meant that, together, our team was able to give a thorough and informed assessment of each crane's condition and future length of operation, said Roger Wibert, the project manager from Inspecta Technology.

The engineers did a visual inspection of the steel structures, machine parts and electrical equipment. Especially vulnerable parts such as welds, rivets, seams and incisions were examined with particular care. The test engineers then carried out enhanced tests with magnetic particle inspection of the areas where corrosion, deformation or cracks had been identified, discovered or suspected.

Inspecta Technology's analysis engineers could then calculate the cranes’ life span and they also completed a fitness analysis of machinery and electrical equipment based on inspection and testing documentation.

The benefits of condition analysis

Condition analysis provided a deeper picture of the cranes' status and future length of operation and pointed to what steps needed to be carried out to ensure that the cranes could continue to operate safely.

- We have identified some places with incipient damage development and proposed measures to minimize the damage and risks thus avoiding costly, unplanned downtime, Roger Wibert, from Inspecta Technology, said.

- The analysis made ​​it possible for us to make the right decisions on maintenance and investment. Inspecta recommended what action we should take in order to ensure the cranes’ safe condition and maintain their full potential working life span, said Raymond Axelsson.

- Several cranes can keep on lifting with just regular maintenance and periodic inspection. Other platforms are going to be repaired following Inspecta's expert advice to enable them to continue to operate safely. However, some are not worth retaining in operation and we will replace these with new cranes, Raymond Axelsson said.

- There's more life left in these cranes than you'd think. With proper maintenance and inspection, most of the cranes can go on happily lifting for years to come, Magnus Dahlberg, from Inspecta Technology, said.

For more information, please contact

Raymond Axelsson, Technical Director, Norrköping Port and Stevedoring, 011-25 06 24

Magnus Dahlberg, Inspecta Technology, 08-5011 3082

Roger Wibert, Inspecta Technology, 08-5011 3387

 

Norrköping Port and Stevedoring Co (NHS) runs the operational port operations in Norrköping. The Company leases and manages land, buildings and harbour cranes in Norrköping. The Port of Norrköping is a full-service port with the logistic management of a variety of commodities including timber, steel, grain, energy and petroleum products, containers and project cargo from Swedish industries. Among the port's customers and stakeholders are major industrial and commercial companies, ship owners, carriers, and freight forwarders.

Page created: 30 Sep 2014