Jumping Jack crane collapse at Ijmuiden

30 July 2007

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The Manitowoc M1200 ringer crane on the jack up rig ‘Jumping Jack’, owned by wind turbine installation specialists A2Sea has collapsed, at the port of IJmuiden, near Amsterdam.

A2Sea sales director Martin Huss told Cranes Today, “There was an accident with the crane, not the vessel, on Sunday morning at 8am. There were no injuries or casualties. The crane was not carrying a load at the time of the accident, but was turning. The main boom collapsed. We have no idea of the root cause at the moment, but are investigating the incident with our client's health and safety manager, the local authority and the Port of IJmuiden.”

The Jumping Jack was owned by Mammoet Van Oord, from 2002 until February 2007, when it was sold to A2Sea. The Manitowoc M1200 ringer crane installed on the barge has a boom length configurable between 46.6m to 122.8m, and a lifting capacity of 1,300t at 18m or 800t at 241m, in heavy lift configuration. The barge is 91.2m long and 33m wide. It can carry a payload of 4000t, and work in water depths of 37m. It can be jacked up in significant wave heights of up to 1.5m.


The Jumping Jack, with its Manitowoc M1200 crane, prior to the accident Jumping Jack

Jumping Jack Jumping Jack