Mammoet has lifted up a 120-metre-high Goliath crane at the Bilfinger Mars Offshore fabrication yard in the port of Szczecin in Poland.
The crane will be used to support the fabrication of steel offshore foundations including transition pieces, jackets and monopiles and to load them onto pontoons.
It was built by Van Haagen Kraanbouw in the Netherlands before transport to the Bilfinger Mars Offshore yard.
Mammoet said it constructed a 127-metre high gantry for the project – the tallest gantry every built by the company in Europe – to execute a “unique lifting operation”.
The company said gantries normally raise loads from an overhead beam between two supporting towers, but this project was different because the crane was assembled around the gantry before it was raised into place.
Goliath’s four legs were tailed while the main crane girders were raised by the gantry, Mammoet added.
The crane is now installed on its wheel sets and has total weight of 1800 tonnes and a lifting capacity of 1400 tonnes, Mammoet said.
Image: the Goliath crane (Mammoet)


