Liebherr LR 11000

At Conexpo Con/Agg 2014 in Las Vegas (USA), Liebherr made its debut showcasing the new 1,000-tonnes (1,200 US-tons) crawler crane in the US. The LR 11000 was introduced as a valuable addition to Liebherr’s crawler crane range, bridging the gap between the LR 1750 and the LR 11350. This innovative crane had been unveiled the previous year at the 2013 Bauma in Munich, Germany.

The development of the LR 11000 was in response to the growing market demand for powerful hoisting capabilities in the 1,000-tonne segment, particularly for handling offshore wind turbines and their foundation structures at ports. Liebherr designed the LR 11000 to provide an economical crane solution in terms of size and transport logistics for these specialized tasks. It represents a strategic approach to meeting the evolving needs of the industry with a focus on efficiency and versatility.

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Product Description

Versatile boom systems, large lifting capacity range

Its large number of boom versions means that the new Liebherr crawler crane covers a wide range of applications. The standard components comprising the S main boom and W luffing jib enables the crane to achieve various boom systems, including a strong PowerBoom system with a heavy luffing jib. Only the P adapter is required as a supplement for this purpose. Main S boom operation is possible with a 1,000 tonne (2,205,000 lbs) head or a 650 tonne (1,433,000 lbs) head.

The LR 11000 is technically prepared as standard for the PowerBoom system, operation with a ballast trailer and all winches. This ensures that simple retrofitting is possible. In addition special equipment with a fixed jib for assembling wind turbines with high towers is planned for the new crawler crane.

Time-tested crawler crane innovations

Liebherr has set more and more new standards in crawler crane development over the last few years in the form of technical innovations and user-friendly designs. Many of these developments have been included in the new LR 11000. The design of the P boom has been taken from the 3,000 tonnes (3,300 US-tons) LR 13000 crane. The new LR 11000 includes parts from the luffing jib for the PowerBoom which means that the main boom sections can be used to ensure a particularly strong luffing jib.

Several innovative concepts have been taken from the 1,350 tonne (1,500 US-tons) LR 11350 crawler crane for the LR 11000, including the fact that the radius of the derrick ballast is infinitely adjustable and can be extended to larger radii with fixed lattice guide. The central crawler section including the slewing ring and bottom section of the slewing platform forms a transport unit and can be connected to the slewing platform quickly using just four bolts. This means that there is no need for a quick-release connection. The undercarriage features a 360° platform with railings which can be accessed from two sides using access ladders. The platform provides safe, easy access to the slewing platform and crane cab.

The new large crane cab which was developed for the LR 1600/2 is also used on the LR 11000. A large number of details to make transport and erection easier have also been taken from the LR 1600/2. These include the removable A-frame including reeving system, fall protection equipment and stacking supports for lattice sections.

The LICCON2 controller provides extended setup facilities and monitored erection for the LR 11000.

Economical transport logistics

The new LR 11000 is designed for a transport width of 3.5 m (11’6’’) and a transport height of 3.2 m (10’6’’). The crawler carrier and the central crawler section each weight 60 t (132,300 lbs) and are therefore the heaviest transport packages. The individual weights can be reduced to 45 t (99,200 lbs) for regions with critical transport infrastructures. As normal on Liebherr crawler cranes, the lightweight lattice sections can be retracted into large heavy sections to reduce transport volume.

The ballasts take the form of 10 t (22,050 lbs) Liebherr standard cast plates. This means that they can be used universally on all Liebherr crawler crane models. The LR 11000 operates with a maximum of 250 t (551,250 lbs) slewing platform ballast, 90 t (198,450 lbs) central ballast and up to 450 t (992,000 lbs) derrick ballast. The derrick ballast is infinitely adjustable up to 20 m (66 ft) and with a fixed lattice guide it can be operated at radii of 20 m (66 ft), 25 m (82 ft) or 30 m (98 ft).

Compact basic crane, powerful drive unit

The LR 11000 has been designed so that it can be used in constricted areas, for example in refineries. The basic crane is extremely compact and has a track width of just 9.2 m (30’2’’). The suspended ballast can be moved to a minimum of 12 m (39’4’’) to the basic machine – an excellent value for a machine in this performance class.

The crawler chains are 2 m (6’7’’) wide and there are plans to produce an optional 2.4 m (7’10’’) version. The crawler chassis features a four-way drive unit as standard.

A Liebherr V8 diesel engine which develops 500 kW / 680 h.p. is used to power the LR 11000. The hoist ropes are 32 mm (1.2’’) in diameter and the hoist winches perform a line pull of 23 t (51,750 lbs).

Technical Data Metric Imperial
Max. load capacity 1,000 t 2,205,000 lbs
at radius 11.00 m 36 ft
Main boom, lightweight/heavyweight from 18 m 59 ft
Main boom, lightweight/heavyweight up to 156 m 510 ft
Max. load torque 15,171 tm 112,000,000 lbs-ft
Lattice jib from 18.0 m 59 ft
Lattice jib up to 114.0 m 374 ft
Derrick boom from 30 m 98 ft
Derrick boom up to 36 m 118 ft
Central ballast 90 t 198,500 lbs
Counterweight at superstructure 250 t 551,000 lbs
Derrick ballast 450 t 992,000 lbs
Engine power 500 kW 680 hp
Driving speed 1.36 km/h 680.00 mph
Total ballast 790.00 t 1,741,650 lbs

PowerBoom Debut For Liebherr LR11000

After completion of the job in Romania, the crane was again put to test with the new PowerBoom. It was shipped from the Romanian port of Constanta to Bremerhaven in northern Germany for installation of a 220 tonnes machine room on a wind turbine tower.

The LR11000 was fitted with the parallel boom to hoist the load to a hook height of 147 metres. Parts from the luffing jib were used for setup version with the double lattice main mast boom, while the standard main boom sections were used as the luffing jib. With a radius of 30 metres, the crane hoisted the 220 tonnes load to a height of 30 metres, including a spreader beam and hook block weight.

Liebherr explained that this boom exchange provides the crane with up to 50 percent more load capacity in the configuration of the luffing jib. The PowerBoom increase the crane’s load capacity by its enhanced lateral rigidity and increase in the torsional moment.

Project planner and heavy hoisting professional Klaus Ruhland explained that without PowerBoom, the crane could have only possible to hoist a load of 160 tonnes with the same hook height and it would require a larger capacity crane like Liebherr LR 11350 or Terex CC 8800 to complete the job.


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