Intelligent assistance systems for bottom-slewing cranes are no longer a distant promise; they are now available for all four current K series cranes.
Liebherr’s K series cranes have been in action on construction sites around the world for years. Since their introduction, the cranes have continually improved and adapted to the changing requirements of construction sites.
The latest cranes in the Liebherr series, the 43 K, 61 K and 91 K, are available now as well as the new version of the 125 K.
As part of the facelift given to the K series cranes, the machines are available with Liebherr’s 5 intelligent assistance systems. Smart functions, such as sway-free load lifting without diagonal pull, increase safety for crews and sensitive components, while semi-automated lifts maximize ease of use.
Liebherr has also retained its established features on the updated K series, including variable hook heights and manoeuvrability in tight spaces, Speed2Lift, Load-Plus and Micromove for maximum lifting speeds, increased jib head lifting capacity and precise positioning of loads.
The crane names now reflect the lifting capacities according to Load-Plus.
New systems
All new K series cranes are equipped with the new Liebherr Control 5 crane control system. This consists of the control system, the Liebherr Display 5 and I/O modules. The control system is already installed in the current L series of fast-erecting cranes and is used in a variety of construction machines within the Liebherr Group.
The update also sees the K cranes equipped with the new Tower Crane Operating System 2 (TC OS 2). It features standardized and intuitive menu navigation, with self-explanatory symbols and icons. A standardized radio control for all cranes in the current K and L series is another new addition.
K series cranes
The 43 K is the smallest crane in the series. It has 11 hook heights to adapt flexibly to construction site requirements. It achieves a maximum hook height of 30.2 metres and a radius of up to 35 metres. The 43 K follows on from the 34 K.
The 61 K is successor to the 53 K. It reaches a hook height of up to 33.4 metres and a maximum radius of 43 metres. Another new feature is a luffed position of up to 30 degrees, which offers more flexibility on site.
The 91 K brings with it all the proven operational possibilities of the K series and can be used for the construction of multi-occupancy buildings as well as industrial projects. It follows the successful 81 K.1 and makes the well-established bottom-slewing crane fit for future challenges.
The 125 K, which is the largest crane in the series, combines the performance of a top-slewing crane with the mobility and flexibility of a fast-erecting crane. The machine’s performance data has remained the same. It achieves a maximum hook height of 41.5 metres, a radius of up to 55 metres and can lift 8,000 kg.
