Liebherr Nenzing to Unveil 110-Ton Crawler at Bauma – Liebherr LR 1100

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At Bauma 2016, Liebherr Nenzing will present a new crawler-crane concept for the 110-ton class. The new LR 1100 will be available worldwide from summer 2016. Transport, set-up, lifting capacities, and user-friendliness focus on optimizing customer benefit.

The newly-designed steel fabrication of this Liebherr crawler crane resembles a tubular structure that allows for optimum force transmission over short distances. This feature results in excellent lifting capacities compared to the predecessor model in this class. The lifting capacities can be further enhanced by approximately 20% using a swinging counterweight, available as an option. The counterweight is swung backwards hydraulically, and produces a higher stability with increased lifting capacities, according to Liebherr.

The LR 1100 is fitted with a powerful 230-kW diesel engine complying with the exhaust emission standards stage IV / Tier 4F. For countries with other regulations it is possible to quickly provide engines without exhaust after-treatment.

The crawler crane is easy to transport, and is quick to set up. The catwalks next to cabin and service areas are folded down for transportation instead of being dismounted. Boom foot and crawlers also remain on the crane during transportation. Another innovation is the patented boom-foot manipulator, designed to make it easy for hauling contractors to move the crane. Starting at the boom foot a rope is guided to a short auxiliary A-frame. Another rope leads from the A-frame to the counterweight cylinder.

When this cylinder is extended, the counterweight leaves its stationary position and moves upwards. Thus, there is no need for the big A-frame to be erected an advantage when entering low ship holds during shipping or when crossing under bridges on jobsites. To get the crawler crane ready for operation, simply mount the boom. Thanks to the quick and easy set-up process the LR 1100 is ideal for flexible jobsite applications.

The position of the operator’s cab, at a height of 7’ 6”, provides the operator with an excellent overview of the complete jobsite. Orthopedic operator seats and a modern climate-control system contribute to increased comfort. A new operating concept facilitates intuitive and ergonomic work—in the cabin the operator can adapt the working position of the seat, the air conditioning, as well as lighting to his individual needs.

The new design of the LR 1100 facilitates service work. Compared to its predecessor model, GRP doors on the upper carriage are no longer required. This facilitates optimum access for service personnel both from the ground and from the roof of the basic machine. Access is comfortable and safe thanks to the catwalks with optional handrails and a ladder.

The LR 1100 is equipped with the newest generation of Liebherr’s Litronic control system, based on CANBUS technology. The load moment limitation included in the system automatically calculates the lifting capacities during operation and guarantees optimum use of the machine. The Litronic control concept is currently the only one on the market to manage without storage of load charts or interpolation of interim values, according to Liebherr Nenzing.

Two new assistance systems, developed in-house, contribute to higher comfort in the operation of the crawler crane and improve safety on the jobsite. The Vertical Line Finder ensures that the load on the rope is perfectly hoisted vertically to prevent diagonal pull caused by the long distance between crane operator and load. This system also prevents asymmetric centers of gravity. The load does not start to sway, which causes less wear to the boom and increases safety for the jobsite personnel.

The second assistance system refers to the Horizontal Load Path, with which loads can be moved to the projected position more precisely and efficiently following a horizontal line. This is an advantage especially in blind spots.

Similar to other crawler cranes up to 330 tons in the LR series, the LR 1100 also has a flexible and extendable boom system. The new crane is available with a fixed jib and a luffing jib.

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