Lifting slings with Dyneema® SK78: 75% lighter and significantly thinner
Knowing this, the LPO Transport Division decided to learn more about Dynamica SafeLift slings. These are made by Dynamica Ropes using Dyneema®, the world’s strongest fiber. Slings made with Dyneema® SK78 are up to seven times stronger than steel at the same weight. They support the highest lifting capabilities – beyond 4,500 tonnes – yet their much lower weight compared with alternatives supports faster operations. How much lower? Two equally strong lifting slings weigh 186 kgs in polyester and just 45 when made with Dyneema® SK78, a saving of 140 kg – or more than 75%.
To LPO, the potential benefits of switching to Dynamica SafeLift slings were striking. “We naturally examine both the theoretical properties and actual physical condition of new lifting gear before we use it – and we were very impressed by the properties offered by Dynamica Ropes’ lifting slings,” says Peter Blazejewicz, Manager Lift & Transport Engineering at LPO. Following in-depth discussions about the requirements and lifting gear involved, LPO decided to buy SafeLift slings. “This has turned out to be a great decision,” adds Blazejewicz.
How great? “In the particular case of numerous jacket relocations, the weight reduction meant that we saved at least 45 minutes on each lifting operation. Since each of these lifting operations involved our 1000-tonne gantry crane, a 103 m lift and a crew of five to seven, the cost saving was substantial,” says Blazejewicz.