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The LR 1250.1 unplugged is the world’s first battery-powered crawler crane. It is driven by an electric engine. During operation the crane can be connected to a conventional electric supply or without a cable, therefore “unplugged”. Depending on the application, the battery capacity is designed for up to 8 hours of operation. There are no compromises regarding performance or availability when compared with the diesel version LR 1250.1.

metricimperial
  • Max. load capacity - 250 t

  • Max. hoist height - 148 m

  • Max. radius - 97 m

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Zero Emission
The crane causes no emissions and significantly less noise. Thus, the crane is also suitable for operation in areas sensitive to noise.
Electric engine
The innovative crawler crane has an electric engine.
Unplugged (battery powered)
The battery capacity is sufficient for an operating time of up to 8 hours, depending on the mode of operation and power requirement.
Plugged in
The crane can operate fully when connected to a conventional electric supply, or be recharged within 4.5 hours.
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.
Max. load capacity
250 t
at radius
4.10 m
Main boom, lightweight/heavyweight from
20 m
Main boom, lightweight/heavyweight up to
86 m
Max. load torque
1,180 tm
Lattice jib from
20.00 m
Lattice jib up to
95.00 m
Central ballast
36 t
Counterweight at superstructure
82 t
Engine power
255 kW
Driving speed
1.60 km/h
Virtual crane operation plan
Confined spatial conditions, as well as special ground conditions, are key factors for the configuration of the device. As a solution, with the "Crane Planner" Liebherr offers software for selecting the optimal crawler crane and the appropriate configuration for the respective use.
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.
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