Siemens sorts dockside lift
Below-the-hook equipment manufacturer Modulift and Siemens Heat Transfer Technology combined forces to design a special rig for lifting modules that weighed nearly 200t apiece.
Modulift sent two rigs for on- and off-load in Korea and Thailand respectively – a total of 16 34t capacity MOD 34 beams in addition to slings, shackles, tie-plates, and other rigging gear.
Dennis de Jong, supply manager for Siemens HTT, explained that the HRSG-modules are the largest the company has ever constructed. This presented a rigging challenge given the dimensions involved, principally because slings would have needed to be rigged at an acute angle from an existing lifting beam to connect to the load's pick points. The solution was based on utilising the existing beam, beneath which eight 3.25m-long standard spreader beams would be rigged at a 90-degree angle to the larger beam, in essence to widen the below-the-hook system.
De Jong said: “Alternative lifting solutions also wouldn’t have been able to handle the weight of the generators so we had to be innovative and combine our knowledge about the load[s] with Modulift's below-the-hook expertise.”
