22/03/2006 - 06:00 am

Terex Re-Engineers RT1110 to Incorporate Demag Boom

Using similar components between product lines to streamline service and reduce costs is a typical practice for lifting equipment manufacturers. After acquiring Demag in 2002, Terex Cranes consolidated its Conway, S.C., operations into Waverly, Iowa, and centered its engineering expertise for large cranes in Germany, leaving the door wide open to create synergies between the Terex and Demag product lines.

Today, Terex is re-designing its rough-terrain cranes and incorporating the lighter, more rounded Demag boom design. “We are looking at using the Demag boom technology in RTs of 80 tons and up,” confirmed Steve Filipov, president of Terex Cranes. However, engineers won't be just sticking an all-terrain boom on an RT crane. “An AT boom is not strong enough for an equivalent RT, so we have to Americanize it,” Filipov added.

The first machine to receive a new look is the 110-ton capacity Terex RT 1110. Testing of the prototype began this month. Using Demag boom technology, the crane has an extended main boom length of 155 feet. A 56-foot two-part swingaway and a pair of 26-foot inserts give a maximum tip height of 270 feet, stretching way beyond the former long-boom RT 1100. The earlier version featured a maximum tip height of 225 feet with extensions but proved too heavy for practical pick-and-carry operations.

As with other competitive models, the five-section boom will continue to have full power that enables it to telescope under load, rather than using the pinning system that larger ATs generally use. Boom elevation ranges from -3 degrees to 80 degrees and offers three telescoping modes.

The RT 1110 is powered by a 300-hp Cummins QSC 300 8.3-liter diesel engine, and it has a maximum travel speed of 18 mph. Standard tire size is 33.25×29-32 PR. The self-rigging counterweight system features a one-piece, 29,600-pound counterweight. Total machine weight is 135,210 pounds.

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