This past December, Bath Iron Works broke its own heaviest lift record using two Manitowoc 16000 crawler cranes to pick nearly 1,000 USt – more than double the weight previously lifted by the shipyard.
The lift was part of a project to construct the Navy’s next-generation DDG 1000 Zumwalt-class destroyer warship. Along with two of the company’s 331 USt capacity gantry cranes, the two Manitowoc crawlers lifted a 992 USt deckhouse off of a barge and set it on the hull of the ship. The deckhouse contained the ship’s bridge, command center and battle room.
The two Manitowoc 16000s were setup to lift at their full capacity, requiring the use of MAX-ER attachments, boosting their capacities to 440 USt. The crawler crane features a 315 ft boom – though, for this lift it was rigged for 157 ft – an EPIC control system and a closed-loop hydraulic circuit system, which enables independent, variable-speed operation of the swing, load hoist, boom hoist and travel functions.
