Caley Ocean Systems: A-Frame for Boskalis’ Ndurance

Caley Ocean Systems has supplied a high performance A-frame handling system to Boskalis Offshore for launching of trenching vehicles and ploughs from the company’s first ‘N Class’ cable-laying vessel Ndurance.

Mounted on the stern of the Ndurance, the Caley A-frame is capable of handling loads of 70 tonne with a maximum lift and reach of 21m up to Seastate-5. The A Frame structure is manufactured in three sections, two leg sections and a top crossbeam.

The crossbeam includes the pivot mountings for A-frame’s telescopic swinging beam assembly mounted on a dampening frame, allowing the lifting system to handle a wide range of equipment.

The A-frame includes an anti-pitch system incorporating two double acting hydraulic cylinders trunnion mounted to the crossbeam, together with hydraulic power unit (HPU) and winch, for maximum operational flexibility.

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Press Release, March 26, 2014