The Terex RT 555 is a 50 t (55 USt) rough terrain crane with a 33.5 m (110 ft) full power mechanically synchronized boom. Crane Specifications, Load Charts, and Crane Manuals are for *Reference Only* and are not to be used by the crane operator to operate any type of crane,terexcranes.com. RT 555. Features: Rated capacity: Crane operation is subject to the computer charts and operation manual both supplied with the See load chart, specs, capacity, size and other technical data for TEREX CRANES RT 555 crane manufactured between 2017 - 2019 - see the specifications on