Rendsburg Port Authority’s order for the Tandem Lift Assistant comes after two Gottwald mobile harbour cranes were supplied to Rendsburg during 2012. The two mobile harbour cranes supplied – one Model 3 crane, variant G HMK 3405 with a maximum lifting capacity of 100t, and one Model 8, G HMK 8610 with a maximum lifting capacity of 150t – can now be used simultaneously to perform computer controlled tandem lifts.

The Tandem Lift Assistant is one of a number of smart crane features offered by Terex Port Solutions to its customers to enhance the productivity and safety of complex moves with Terex Gottwald Cranes, the company said. The system was installed at the end of November 2012. In December last year the cranes performed their first commercial tandem lift when they handled a 236t lock gate.

"The Tandem Lift Assistant enables us to perform lifts with loads weighing up to 250t, which is more than any other crane in this region of Germany", said Peter Klarmann, managing director of Rendsburg Port Authority. "Thanks to this capability, our cranes offer customers around the Kiel Canal a unique opportunity, which, of course, ensures us a competitive advantage when it comes to handling large, bulky and very heavy cargoes."

Joachim Meyer, head of design for mobile harbour cranes at Terex Port Solutions added: "For the Rendsburg Port order, we applied our Tandem Lift Assistant technology to a combination of one Model 8 and one Model 3 crane, in other words, two cranes of very different size and design. The system offers customers not only increased levels of safety and convenience when performing tandem lifts, but also boosts productivity because they are permitted to use the maximum lifting capacity of both cranes."