Hansa Heavy Lift successfully transports two giant ship unloaders from UK to The Netherlands
The shipping line only had 28 year old drawings of the units which made the project uniquely challenging
Hamburg, Germany, Tuesday, 9 May 2017
HANSA HEAVY LIFT has successfully transported two giant ship unloaders, each weighing 870 metric tonnes and measuring 28.0m x 38.5m x 58.0m, from Tilbury, the UK to Rotterdam, The Netherlands.
The heavy lift specialist’s engineering team only had 28 year-old handmade drawings of the two units to work with as they prepared for the project, which was carried out in stages on two consecutive voyages aboard HHL Tokyo.
“This was a uniquely challenging operation whereby we had very limited data available in the planning stages, including no precise weight or centre of gravity (COG) information due to the age of the units,” said Emek Ersin Takmaz, Head of Projects, Engineering Department, HANSA HEAVY LIFT.
“Further, these cranes were not designed to be lifted, mandating a complex lifting arrangement which required specialist engineering expertise.
“HANSA HEAVY LIFT overcame all these obstacles after undertaking a series of detailed analyses and careful calculations conducted by our in-house team of engineers.”
The units were loaded at TilburyPower Station, which is situated on the River Thames and has a tidal range of 6m.
This meant that during low tide the water depth was insufficient for the HHL
In order to overcome this issue, a spacer barge was used in-between the vessel and the pier.
Source: Hansa Heavy Lift, 9 May 2017