Columbia Giant Specialty Derrick Crane
With a lifting capacity of 660 tons, the Columbia Giant meets the safety requirements for the Atomic Energy Commission heavy lifting projects.
The derrick sits on a steel grillage on an existing dock so it can be slid out of the way when not in use. The pipe compression struts are above grade and can be disassembled. The boom and poles can be removed or reused for other derrick or gin pole applications.
Liftech’s services included review and design of reinforcing for the transshipping barge, and design of the derrick including connections, backstay supports, dock modifications, and review and design of additional pile supports for the dock.
Mobile Giant Specialty Derrick Crane
The twin booms of the derrick reach 300 feet above the dock, have the lifting capacity of 1,600 tons, and can be hoisted separately or in tandem. The derrick was designed to meet the requirements for the Atomic Energy Commission heavy lifting projects.
Liftech’s services included design and detailing of all the major elements including the boom, mast, holdback foundation, holddown, and access tower.