MacGregor to deliver FibreTrac Fibre-Rope offshore crane

Posted on May 4, 2022 at 9:51 a.m. by

The Maritime Executive

[By: MacGregor]

MacGregor, part of Cargotec, has been awarded a contract by Otto Candies, LLC to deliver a FibreTrac active heave compensation offshore crane.

The order was booked during Cargotec’s first quarter 2022 order intake, with delivery expected to be completed by the end of the year.

The scope of supply includes the complete delivery of the customer-designed 150 t AHC crane with a lifting capacity of 100 t, as well as the Lankhorst Lanko®Deep Dyneema DM20 fiber rope for an operating depth of 3,400m. The crane is the first of its kind and offers the ability to lift heavy loads to depths that normally require much larger cranes on larger vessels.

Innovative solution

This highly innovative crane uses a neutrally buoyant fiber rope with an applied fiber termination connecting directly to the hook allowing full payload at all depths. This contrasts with standard wire rope cranes, where the weight of the steel wire regularly robs the crane of its lifting capacity as more wire is reeled out.

The FibreTrac concept was developed in close collaboration with Parkburn Precision Handling Systems, who will supply the Deepwater Capstan (DWC) fiber cable which gently slacks the cable between the high voltage operational side and the low voltage storage side. Parkburn also developed the Crane Hoist Line Management System which manages rope condition monitoring and feedback using a combination of sensing technologies and an operating algorithm lifetime developed by DSM based on their DM20 material.

The AHC fiber cable underwater crane will have the world’s first DNV-DRS class rating based on DNV-ST-E407 standard. This new standard governs how such a crane and its rope system can remain continuously certified based on real-time measurements of the condition of the rope and represents a significant departure from previous certifications based on prescriptive rules and periodic inspections.

Owners and operators can now have an up-to-date health status of every part of the lift line and use it with confidence and to its full potential, instead of guessing based on hours worked since last inspection and reduce or replace it.

“The drive to improve vessel utilization and efficiency has never been stronger in the offshore world. Thank you to everyone who contributed to the development of this unique crane which we are very proud to put into service. said Jan Erik Pedersen, Senior Vice President, Offshore Solutions Division, MacGregor.

The products and services described in this press release are not endorsed by The Maritime Executive.

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