LR 1400 SX Crawler crane

Despite its size, the LR 1400 SX has a wide range of applications and convinces with its flexibility. This is ensured by a modular counterweight system and a variety of possible boom configurations. With the compact transport weight of 46 t, the complete crane can be easily transported between jobsites. Platform and railings remain attached to the uppercarriage during transportation. The self-assembly system enables quick assembly. The Ground Pressure Visualization calculates the current ground pressure of the crane in real time and compares it with the specified safety limits of the relevant position. The ground pressure of the crane can also be reduced using the ground pressure reduction plates.
Max. load capacity 400 t
Max. hoist height 173 m
Max. radius 124 m

Features

Self assembly system

Independent and quick assembly of the crawler side frames, the carbody and rear counterweights, the two hoist winches, as well as boom elements.

Gradient travel aid

Safely on the move on uneven terrain - the machine’s control system automatically calculates the its centre of gravity.

Access to the cabin

Direct access to the cabin via folding steps.

Comfort

This includes a modern air-conditioning system with improved airflow, an optimized field of vision and increased noise protection, as well as an orthopaedic operator’s seat with integrated heating and cooling.

High service availability

A global service network with experienced technicians and fast access to spare parts ensure high machine availability and a long product service life. more

Designed for road transportation

When disassembled the crawler crane has a compact transport width of maximum 3 metres, which permits cost-effective transportation with standard low loaders. The connecting pieces of the luffing jib can also be transported in the connecting pieces of the main boom to save space. Fewer transport vehicles are therefore required. more

The Ground Pressure Visualization calculates the current ground pressure of the machine in real time and compares it with the specified safety limits of the relevant position.

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Both the measured wind speed and the actual crane configuration are taken into consideration when calculating the current hazardous situation for the crane. When the conditions become too dangerous, the system gives a warning.

Driving is always carried out in “Safe Mode” with active Load Moment Limiter, and is dependent on the driving speed.

Thanks to the variety of boom configurations, the user enjoys maximum flexibility with the adaptation of the crane to the respective conditions. Rapid deployment on different construction sites is thus possible.

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The crawler crane is driven by a high-performance and simultaneously economical Liebherr diesel engine. The emissions-optimised unit meets the latest exhaust emissions standards.

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The control system developed by Liebherr includes all operating and control functions of the crane and permits very delicate and secure lifting. The load capacities are automatically calculated during operation. The calculation of the load moment indication is also effected steplessly or without interpolation. Optimal utilisation of the machine is thus guaranteed.

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Technical data

Max. load capacity 400 t
at radius 4.90 m
Main boom, lightweight/heavyweight up to 95 m
Lattice jib up to 113.00 m
Central ballast 52 t
Counterweight at superstructure 150 t
Engine power 450 kW
Driving speed 1.30 km/h

Downloads

Optional equipment

Ground pressure reduction

With the aid of the new hydraulically activated ground pressure reduction plates, the ground pressure can be reduced by up to 56 %.

Boom up-and-down Assistant

The assistance system “Boom up-and-down Assistant” indicates the approach to the tipping border and automatically stops operation before the operator unintentionally enters an unsafe zone.

Personnel lifting

The crane is approved for personnel lifting. The statutory emergency generator and emergency controls required for personnel lifting are offered by Liebherr as a simple Plug-and-Play solution.

Horizontal load path

This control assistance system increases the comfort in the operation of the crane. Loads can be moved to their intended position more efficiently. Coordination is also simplified for multi-crane lifting.

Vertical Line Finder

The Vertical Line Finder ensures that the boom head is moved exactly vertical over the load to be lifted. This prevents the load swinging and possible contact with obstacles, as well as people. The service life of the crane is also increased with the lower dynamics on the boom.

Radio remote control

With the radio remote control a second person outside the cab can assume all crane movements. Loads can be moved to positions which are not even visible to the operator himself. Safety on the construction site is thus increased considerably. more

The data transfer and positioning system "LiDAT" supplies important information on the operation of the machine. With this data crane operation can be made more efficient. There are various additional packages available for displaying data on wind speed or machine configuration, as well as access by service engineers via Teleservice.

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The automatic track adjustment reduces the movement width of the crane to a minimum. The crane can be moved on narrow tracks when fully set up incl. boom and counterweight. The track adjustment also offers a significant advantage in mobility on spacious construction sites.

Liebherr developed a system for protecting people during assembly work on lattice jibs. Optimal protection of staff is thus guaranteed at all times.

Videos

Crawler Crane LR 1400 SX

Crawler Crane LR 1400 SX

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Video - Automatic engine stop control explained

Video - Automatic engine stop control explained

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Ground Pressure Visualization

Ground Pressure Visualization

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Boom Up-and-Down Aid

Boom Up-and-Down Aid

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Animation - Vertical Line Finder and Horizontal Load Path for crawler cranes

Animation - Vertical Line Finder and Horizontal Load Path for crawler cranes

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Diagnosis screen and remote control

Diagnosis screen and remote control

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Sales & Service

Our customers can rely on a worldwide sales and service network. Search here for the right contact partner.

Crawler crane technology

Liebherr crawler cranes combine innovative technologies with clear practical benefits. Their features include economy and performance. Crawler crane technology