Model TR-600XXL-4 has the only five-section boom among 60-ton rough-terrain cranes. Only five-section booms on some 80-ton and larger cranes surpass the TR-600XXL-4's 146-foot boom-tip height. A two-stage lattice jib stretches tip height to 204 feet. Outriggers can be extended to different lengths and Tadano's Automatic Moment Limiter (AML) calculates maximum allowable lift over each quadrant of the machine.