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Two Way Cranes completes complex barge lift

Two Way Cranes was recently engaged by Polaris Marine Pty and faced the task of lifting a 67t concrete barge out of Sydney Harbour.

Two Way Cranes was recently engaged by Polaris Marine Pty and faced the task of lifting a 67t concrete barge out of Sydney Harbour.

The lift required Two Way’s Liebherr LTM-1350 fully dressed with 140t of counterweight, using 25m of main boom configuration. The total weight of the crane on the barge with rigging and the load on the hook went to 291.5 tonne. The all up-load on the hook was 73.5 tonne and the crane capacity at 10m at current configuration was 90.4 tonne.

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The combined weight of the 67t barge and crane would have overloaded the wharf, so Two Way Cranes had to use a barge for the lift.

Two Way Cranes also wanted to reduce the number of crane movements when lifting from the barge, so with the help of ASO Marine Consultants Pty Ltd and Polaris Marine Pty Ltd they designed a lift plan. The plan involved lifting the concrete barge out of the water and tugs gently pushing the barge and crane forward next to the wharf. The concrete barge was landed onto the wharf and straight on top of a number of share beams already set up on the wharf to spread the load across a number of piles.

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