The Mammoet confined space crane, the FOCUS30, has completed all required tests and is now being dismantled. It will be ready for mobilization for its first project. Over the past few weeks the crane has run a series of controlled tests to confirm its strength and safety.
The FOCUS30 will improve construction projects in oil refineries and cities where increased regulation and growing populations mean elevators are surrounded by living plants, buildings and people. The low ground pressure helps protect underfoot infrastructure such as tunnels and cables while reducing the disruption of the ground prior to lifting.
Project plans can also be expanded with the crane. For example, more cables and piping can be installed while the lift is complete.
The FOCUS30 was audited in two phases under the supervision of Lloyd’s Register, an independent appraiser who worked with Mammoet to develop the FOCUS30. Initially, the crane was assembled in its SFSL fixed boom configuration and subjected to 125 percent of its maximum recommended load.
Next, the crane was reassembled, this time in its SSL configuration, with a 90-meter boom but no boom, and again loaded with 1,250 tons. It took about a week to test the crane in its SFSL configuration, while testing it in its SSL configuration took a total of three days.
In both phases, side load, slewing load and maximum radius tests were carried out while the international crew of the crane watched. The repositioning of the superlift between tests only took two hours and not a day or two – – A feature that reduces system downtime when the crane starts working on the project.
After completing both phases, the crane now fully complies with the EN 13000 standard for mobile cranes and FEM 5.004, which regulates the construction of steel structures for general use. The crane is now being dismantled and can be mobilized for its first active project in the UK.
Mammoet created a virtual 360-degree tour of the crane. Click here to see the tour in action: https://mammoet-focus.nl.