THE WORLDS LARGEST AND MOST POWERFUL MOBILE CRANE
Liebherr the heavy equipment company have developed a new all terrain nine axle mobile crane that is the worlds most powerful. The Liebherr LTM 11200-9.1 has a maximum lifting capacity of one thousand two hundred tons with its powerful hundred meter (328 feet) telescopic boom.
The massive boom is in eight parts and is longer by sixteen meters and stronger than the previous worlds greatest mobile crane the 1998 model LTM 1500-8.1 which had a boom of only eighty-four meters. Several of the images below are actually of models, this is so the detail of the extended boom can be captured.
The real crane is just too large to be able to show its full potential in a single image clearly. Indeed the Liebherr LTM11200-9.1 is truly an awesome piece of engineering.
The images of the extended booms certainly look impressive and has also extended the length of this page by a few inches too! But we must not forget that they are also very strong and when they have twelve hundred tons suspended from them we know its the worlds most powerful crane.
With the worlds strongest mobile boom and with the worlds longest reach of such a crane, the Liebherr LTM 11200-9.1 is certainly out to impress.
The hundred meter boom is constructed from a strong base with seven highly extendable telescopic arms. The boom can be fully automatically positioned and then locked into place using the tried and tested rapid action TELEMATIK telescopic adjustment system.
A very powerful four part short telescopic boom can also be implemented with the four inner telescopic parts extended. This method has already been tried, tested and approved on the LTM 1500-8.1. A radius of fifty-five meters is attained with the help of a three meter lattice head section.
There are quite a few lattice extension sections available for the LTM 11200-9.1. The lifting fly jib can be extended out to reach one hundred and twenty-six meters (413 feet) with a lifting height of one hundred and seventy meters (558 feet)
The booms Y-shape guy steering system offers fantastic load capacity which can be used on the four or eight part telescopic boom.
The mobile crane is powered by a Tier 3/Stage III compliant six cylinder water cooled diesel engine that produces 671 hp at 1900 rpm, the cranes boom is diesel-hydraulic powered with full electronic control supplied by LICCON.
The nine heavy duty truck axles are equipped with hydro-pneumatic auto self levelling suspension and loads are equalized between pairs of axles. The active speed dependant rear axle steering that was developed by Liebherr, is integrated into the chassis for maximum efficiency in the control of this large vehicle when out on the roads.
As seen in the image below, all of the eighteen wheels on this massive mobile crane have linked steering. She may not be able to turn on a dime but she can have a very good go at it! This total steering on all wheels helps to make this humungous crane at least manageable on the main roads.
The first set of ten wheels turn in the direction the vehicle is travelling whilst the remaining eight rear wheels turn in the opposite direction, to "swing" the vehicle around. This reduces the cranes turning circle quite considerably but when we are reminded of its size, these issues are understandable.
Fitted with the much respected German ZF automatic transmission, the gear box has twelve forward and two reverse gears. The wheels on the first five axles on the front are powered, whilst the rest trail.
The European Association of Heavy Haulage, Transport and
Mobile Cranes presented the
Development Award 2007 to Mr Mario Trumzer from Liebherr for
this record breaking mobile crane.
Page created 2007. Updated December 13th 2012