Barnhart Crane & Rigging has taken delivery of a new Liebherr LTM 1500-8.1 all terrain crane. It is the largest telescopic-boom mobile crane in the company's fleet. With a capacity of 600 tons (500 metric tons), the company claims the new crane will be used at refineries, industrial plants and in erecting and maintaining wind turbines.
The eight-axle crane has a seven-section telescopic boom that extends to 276 feet (84 m). With the lattice jib, the crane has a hook height of up to 476 feet (145 m) and a reach of 354 feet (108 m). The addition of the Y-type guying system gives lateral support to the boom to enhance lifting capacity, especially when the crane is lifting with a long boom at short radius, the company said.
While the new crane will be available to all Barnhart's 20 branches, it will be based primarily at the company's Oklahoma City branch. Barnhart took delivery of the crane at the end of August and within days had it operating on its first job, replacing a 125,000 pound (57 tonne) vessel at a nearby refinery during a fall maintenance outage. Various boom configurations up to 276 feet were used for preparatory work, while the main lift itself was carried out with 189 feet (58 m) of boom at a radius of 67 feet (20 m), using 88% of the crane's load chart capacity.
"Thanks to its reach, capacity and ease of deployment, we were in and out of the refinery in just four days," said Tony Morelli, manager of Barnhart Crane & Rigging's Oklahoma City branch. "This is roughly half the time that the exact same task took us back in 1997 when the vessel was last replaced - only back then we used a 300 ton conventional lattice boom truck crane, which was the best choice available at the time."