Editorial Products & Equipment Cranes
New look for Liebherr’s L series fast-erecting cranes

Liebherr’s new L series fast-erecting cranes are hitting the market with substantial changes. 

The 25L and 33 L cranes come with changes to structural steelwork, an improved hydraulic system and a new modular drive system. 

Another feature is a standardized radio remote control for all new Liebherr bottom-slewing cranes. The standardized operating concept, which Liebherr states makes it easier to switch between the L and K series, and increases flexibility and reduces the amount of training required.

The L series fast-erecting cranes are the first machines of their type to feature the fifth generation of Liebherr’s own control hardware, Liebherr Control 5. This control system is already being used by a number of other Liebherr Group construction machines, including mobile excavators, dumpers, deep foundation equipment, mobile harbour cranes and wheel loaders. 

On the software front, the cranes are fitted with the second generation of the Tower Crane OS (Tower Crane Operating System 2). This means that the cranes feature a new user interface, which top-slewing cranes from the EC-B series began using in 2021. 

All L series models come equipped with the sway control assistance system for load sway damping. The system detects movements in the direction of slewing and trolley travel that can cause loads to sway. The intelligent load sway damping system counteracts and corrects such movements. 

“The L series marks the start of a new development generation and sets the standard for future products,” states Clemens Maier, product manager at Liebherr-Werk Biberach GmbH. “Nothing has changed in terms of the cranes’ compact dimensions and powerful performance. The new Liebherr control system provides us with new, innovative crane operator assistance systems and is optimally designed for current and future requirements.”

The cranes offer the fine positioning mode Micromove, which enables careful and precise positioning of loads. This protects the prefabricated parts being positioned as well as the surrounding structure. In addition to this, the Speed2Lift function always automatically selects the maximum speed possible with each load.

As with the fast-erecting cranes of the previous L1 series, the jib lengths remain unchanged: 25 or 27 metres for the 25 L and 30 metres for the 33 L. The already familiar ballast and transport axle options are also available for the L series, allowing the machines to be used with flexibility.