Tue March 14, 2023
Liebherr showcased a 140 ton rough-terrain crane at ConExpo 2023 under the slogan "The toughest in the roughest."
The new LRT 1130-2.1 offers the highest lifting capacities and the longest telescopic boom of any 2-axle rough-terrain crane in the world, according to the manufacturer. It also has the most economical transport dimensions in its performance class.
High Performance With Long Telescopic Boom
The essence of the LRT 1130-2.1 is maximum performance with economical mobility, worldwide. The new Liebherr rough-terrain crane is currently the only 140 ton crane on a 2-axle chassis. At the same time, its telescopic boom is the longest in its class at 197 ft. It consists of the pivot section as well as six telescopic sections and is extended and bolted fully automatically with the Liebherr TELEMATIK high-speed telescopic system.
A 35 ft. single folding jib or a 35 to 62 ft. double folding jib is available for the LRT 1130-2.1. It is mounted at angles of 0, 20 or 40 degrees, or can be hydraulically tilted from 0 to 40 degrees.
With an additional 23 ft. lattice section as a telescopic extension, this new crane reaches hook heights of up to 279 ft.
The folding jib is carried on the right-hand side of the boom. At the same time, a 9 ft. 6 in. assembly jib can be attached to the left-hand side of the boom. A side-folding rooster sheave, which can be operated in 2-line mode, rounds off the boom options.
Liebherr has designed the dimensions of the new LRT 1130-2.1 so that it can be transported economically on low-loaders worldwide. Its width is 11 ft. 2 in., its height 12 ft. 7 in. (and its chassis length is 30 ft. 8 in.
The transport weight is 106,000 lb. without ballast, but with the folding jib and hook block. This can be reduced to 98,750 lb. These values are unique in the class of powerful 2-axle all-terrain cranes. A permit-free standard transport vehicle is sufficient for the 44,100 lb. ballast and additional equipment. The counterweight consists of three ballast slabs and is attached to the slewing platform via self-assembly with ballasting rams.
High safety levels in every respect were the main priority for the design of the new LRT 1130-2.1, which features an outrigger monitoring system as standard. The outrigger status, on tires or supports, is detected automatically and saved to the crane controller. The attachment of the ballast to the slewing platform and the installation of the optional double folding jib, including its angle adjustment system, are also recorded and monitored.
The VarioBase variable support base, which was developed by Liebherr and is standard equipment on all Liebherr LRT cranes, makes an important contribution to increasing safety. VarioBase allows each individual crane outrigger to be extended to any length. The crane work is controlled by the load moment limiter within the LICCON controller, which calculates the maximum load capacities precisely for the current situation. This prevents accidents caused by human error during the assembly process and when hoisting loads.
VarioBase also offers greater flexibility on the construction site, higher lifting capacities and a larger working range. The greatest advantages are achieved in the areas directly above the outriggers.
Safety also is enhanced by providing greater comfort for the operating personnel. The new 140 ton crane also features the wide crane cab that has already proven its worth on the other Liebherr LRT models. It can be tilted backwards to provide greater comfort when hoisting loads to great heights.
Clear, self-explanatory controls make the crane easy to handle. They allow crane drivers to concentrate on the main focus of their job, working with the crane and the load. Liebherr calls this concept KISS: "keep it simple and safe".
There are ladders, a large number of handles and an electronically extending platform on the cab to ensure safe access to the crane. The new LRT crane features a wide range of storage boxes for extensive accessories, lifting tackle and support timbers as standard. There also is storage for the load hook.
Like the LRT 1090-2.1 and LRT 1100-2.1 cranes, the LRT 1130-2.1 also complies with a global, uniform safety standard and with globally valid regulations such as the US ASME B30.5 standard, the European EN 13000 standard and the Australian Standards (AS). The machines also include systems to prevent safety equipment being bypassed.
High Off-Road Capability
The new LRT 1130-2.1 is designed for durability, off-road mobility and maneuverability. It is powered by a 6-cylinder CUMMINS combustion engine that complies with all applicable exhaust emission regulations. It can be operated without restrictions with hydrogenated vegetable oil (HVO). The engine develops 252 bhp (188 kW) and supplies a maximum torque of 875 lb-ft (1,186 Nm). A 6-speed powershift transmission from DANA and large 29.5 R 25 tires guarantee the required off-road capability. All-wheel and crab steering ensure easy handling and high maneuverability in constricted conditions.
For more information, visit www.liebherr.com