Mammoet’s Focus 30 Crane on Schedule for 2020 Debut
The Focus 30 crane is set to change the landscape of heavy lifting in confined spaces and has now moved a step closer to completion with the fabrication of its main boom.
Mammoet selected experienced fabricators Hillebrand for this stage of the construction project. Harold Zuidervaart, Project Manager explains,“All the contractors for the Focus 30 are based in the Netherlands and within a reasonable distance of our Schiedam office, which is where the crane’s engineering team is based.
“Hillebrand has a lot of steel construction experience across various industries, including the fabrication of heavy cranes, and their Middelburg and Vlissingen facilities are well-equipped for this type of project. We were also familiar with them as Mammoet has previously transported and installed steel bridges and viaducts that they have fabricated. We are both companies that have a reputation for pushing the boundaries of what is possible, so it was a good fit.”
Mammoet has had to work closely with each of their contractors and that coordination has been vital. To save time on the project, Hillebrand’s fabrication work began before the full engineering for the Focus 30 crane was complete. The coordination between Hillebrand and Mammoet ensured both the engineering for the crane and the main boom’s fabrication could successfully run simultaneously.
Hillebrand was supplied with the main tubulars of 690 quality, procuring the rest of the components for the fabrication. The majority of the components could be sourced from within the Netherlands, with Hillebrand seeking the most efficient ways of transporting them.
The boom has been fabricated in eight main parts and there were quality control procedures at all stages during the fabrication. Templates of each of the sections were fabricated to ensure they would all fit correctly. Several trial fits were then performed to test the components before they were designated final.
Once deemed complete, the last stage of the fabrication could be carried out for each section, with the painting work performed in several batches. This means that when delivered to Mammoet, the boom will be fully finished.