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LiebherrTower cranes
ProductsTechnologiesServicesApplicationsNews & EventsOther product segmentsNetherlands (en)
Tower CranesProductsFast-erecting cranesK-Series91 K
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91 K

Fast-erecting crane

Highlights

A crane for every situation – the solution for every job: The 91 K is optionally available with the new assistance systems. The new Liebherr Control 5 control system is also installed in the 91 K. Established functions such as Speed2Lift, Load-Plus and Micromove continue to be part of its extensive features. Improved lifting capacities result in increased crane performance. The name of the 91 K is based on load capacities according to Load-Plus.

metricimperial

  • Standard - EN 14439

  • Max. hook height - 40.40 m

  • Max. lifting capacity - 6,000 kg

  • Max. radius - 48.00 m

  • Lifting capacity at max. radius - 1,380 kg

LiDIAG

The digital diagnostic tool offers real-time monitoring and precise analysis of crane functions. It supports troubleshooting, minimises downtimes and optimises use on challenging construction sites.

Load-Plus

Up to 20% increase in lifting capacity at the touch of a button. Load-Plus reduces drive speeds and allows movements to be carried out simultaneously. The 91 K is even more flexible as a result.

Crane cabin

The cabin offers the crane operator maximum comfort and the best possible overview of the construction site. Safety is increased on every site as a result.

Intelligent assistance systems

We are setting new standards in the tower crane world with our intelligent assistance systems. These patented innovations independently carry out semi-automated, simultaneous movements and significantly simplify work for the crane operator. This not only makes operation more precise and efficient, but also improves the overall quality of work on site. The assistance systems Sway Control (Plus), Vertical Line Finder, Guided Hook & Positioning Pilot are available for the 91 K.

Downloads

Technical data

Lifting capacity at max. radius
1,380 kg
Max. radius
48.00 m
Standard
EN 14439
Max. lifting capacity
6,000 kg
Lines
2
Max. hook height
40.40 m
Luffed jib position
30 °
Jib position to avoid obstacles
45 °
Slewing radius
2.75 m
Hoist gear
15 kW FU
Slewing gear
5,0 kW FU
Trolley travel gear
3,0 kW FU

91 K