The client has furnace cranes that were in operation from 1984 to 2015 at its facility in South America. This equipment experienced significant chronic fatigue cracking in the crane bridge girder. The client retained Liftech to provide engineering services for repairing the fatigue cracks and improving the structural details to help reduce the likelihood of future cracking. Liftech developed a…
The client operates two bulk unloaders at its facility in South America. The boom on one unloader buckled due to a snag event, when the grab bucket struck the edge of the vessel opening during operation. Liftech provided engineering services for temporarily securing the damaged unloader, structural concepts and design for boom stabilization, and structural concepts for boom removal and…
The client has a reclaimer that has been operating for over ten years at its facility in South America. This equipment experienced chronic fatigue cracking in the truss beam upper chord. After making in-house crack repairs and performing a modification that resulted in further fatigue cracking, the client retained Liftech to evaluate the cracking and to design repairs. Liftech performed…
Liftech conceived a new crane concept, the Balance Crane, for unloading containers from large vessels and developed the design in collaboration with crane manufacturer ZPMC, Shanghai, China. The Balance Crane has reduced wheel loads and tie-down loads compared to a standard ship-to-shore container crane but functions similarly. The boom is continuous from the landside legs to the boom tip. The…
Port Everglades (PED) serves vessels up to 22 containers across and 8 high on deck at their Southport terminal with three new 65-LT capacity low profile STS cranes procured from ZPMC China with help from the Liftech team, also including McKay International Engineers, Leader Firm International, and Liftech Shanghai Limited. At the time of construction, these were the three largest low…
Modern Terminals Limited planned to increase the lift height of four 2005 ZPMC STS container cranes from 42.5 m to 48 m. They planned to increase the booms of three cranes from an outreach of 62.5 m to 65 m, and one crane from 62.5 m to 63 m. This work is to accommodate larger vessels calling at their terminal…
Modern Terminals Limited planned to increase the lift height of six 2005 Noell STS cranes from 44 m to 50 m. They planned to increase the lift height of another two 2005 Noell STS cranes from 41 m to 48 m and extend the booms from an outreach of 61 m to 65 m. This work is to accommodate larger…
Liftech provided engineering to demolish the articulated boom Crane X437 at Port of Oakland Berth 37, including review of the associated wharf loads Power Engineering Construction Co. used their DB Pacific floating crane, a Liebherr LR1300 crawler crane, and a hydraulic mobile crane. The crawler and mobile cranes imposed large, localized loads on the wharf structure. Liftech’s scope included wharf review…
McLean Contracting Company needed a high-reach floating crane to install offshore power line supports in Baltimore. The highest lift was 400 feet above water. Liftech evaluated the feasibility of retrofitting their 400T Baltimore floating crane with a long jib to perform the lifts. Liftech developed the design criteria, assisted with developing a conceptual jib erection scheme, reviewed crane system strength…
