Liebherr’s renewed generation of self-erecting K cranes is tailored to meet the demands of the North American construction market.
The new 43 K, 61 K and 91 K cranes combine compact transport dimensions, powerful lifting capacities and adaptability on tight urban jobsites.
As well, Liebherr has introduced a full suite of intelligent assistance systems that increase precision, jobsite safety and operator comfort.
The existing 125 K, the largest self-erecting crane in the lineup completes the portfolio and is suitable for mid- to high-rise residential and commercial construction.
Built for modern jobsites
The new K series is designed to meet the needs of North American construction, where strict safety requirements and rising labour costs shape daily operations.
Liebherr’s K cranes arrive as a complete unit and can be set up quickly and with minimal effort. The plug-and-play solution enables rapid project starts and seamless integration into tight schedules.
Despite their compact footprint, K cranes cover large working areas and reach over existing structures with ease. Variable jib lengths, telescoping tower configurations and up to 11 hook height options allow K-series cranes to adapt to a wide variety of applications, from single-family home construction to mid-rise commercial developments and infrastructure projects. The high lifting capacities supplemented by strong tip loads and hoist speeds allow contractors to handle everything from concrete and formwork to HVAC units, prefabricated elements and roofing materials.
An advantage of a K crane is the ability to replace several machines traditionally used for material handling. Instead of using multiple telehandlers on jobsites, one K crane provides full coverage from a fixed position. This reduces traffic, minimizes collision risk, protects surrounding structures and allows subcontractors to coordinate workflows more efficiently. Since all lifting operations are centralized at one point, jobsite control improves noticeably while labour requirements decrease.
For rental companies, quick setup, low maintenance and appeal across multiple customer segments make K cranes an attractive investment for equipment fleets.
Intelligent assistance systems
A key innovation of the new K cranes is the integration of Liebherr’s intelligent assistance systems. These automated functions support operators during challenging lifts, improve handling accuracy and increase on-site safety. All assistance systems are available for the 43 K, 61 K and 91 K models.
The Sway Control Plus system actively stabilizes the hook block while the crane is moving. The system detects load movements, wind effects and operator inputs and automatically counteracts sway. The result is precise, sway-free lifting when accuracy is essential, particularly in dense urban areas or when working close to existing buildings.
The Guided Hook system further simplifies challenging operations by allowing workers on the ground to position the hook manually when it is outside the operator’s line of sight. This reduces communication effort, accelerates workflow and enhances safety when lifting behind obstructions or between buildings.
With Vertical Line Finder, loads are lifted vertically without diagonal pull. The system autonomously positions the hook above the load’s centre of gravity, preventing dangerous side forces and protecting both people and sensitive components. For repetitive lifting cycles, Positioning Pilot offers substantial relief by storing up to three hook positions and two routes. The crane can automatically travel these paths with precision, making it ideal for concrete placement, unloading processes and other tasks requiring consistent accuracy and repetitive movements.
All assistance systems use the new Liebherr Control 5 control platform and the Tower Crane Operating System 2 (TC-OS 2). These technologies enable intuitive operation, high computing performance and seamless integration of automation features across the crane’s functions.
