Sway Control & Sway Control Plus

The assistant supports the crane operator with sway-free operation. Hook block sway is actively corrected in both slewing and trolley directions.

Sway Control Plus utilises an IMU sensor system on the hook block, which detects inclination and angular velocity. This means that the system can also recognise and eliminate sway that already exists before the system is activated or is caused by external influences, e.g. wind.

The assistant is particularly useful for less experienced and occasional crane operators, given sufficient space. It supports operators with limited experience by automatically damping sway, thereby increasing safety and efficiency.

Sway Control: No additional sensor hardware is required.
Sway Control Plus: An IMU sensor on the hook block captures the inclination and angular velocity of the load hook.

Use examples

The photo shows a Liebherr fast-erecting crane lifting a prefabricated wall element on a construction site. The crane is operating next to a partially constructed residential building with scaffolding. In the background, green fields, a path, and a wooded hilly landscape stretch out under a cloudy sky.

Less experienced crane operators
Less experienced crane operators often find it difficult to address or avoid sway correctly. This is a common problem, especially on construction sites where operators don’t work with the crane regularly.

Solution: Sway Control (Plus)
The assistant supports operators with limited experience by automatically damping and eliminating sway, thereby increasing safety and efficiency. The system simplifies the training of new operators and reduces mistakes

The picture shows a construction worker wearing a yellow hard hat and dark work jacket standing on a construction site holding a yellow Liebherr radio remote control in his hands. In the background, the shell of a building with walls and scaffolding can be seen. The man looks up intently as he operates the crane.

Less strain on the operator
Crane operators often have to focus on their work over long shifts, which can lead to fatigue and a decline in performance. Manually addressing sway is especially demanding and requires a high level of concentration.

Solution: Sway Control (Plus)
The assistant takes the strain off the operator by automatically damping and eliminating sway. This reduces the physical and mental demands on the crane operator and helps to improve work safety.

The image shows the hands of a construction worker operating a yellow-gray Liebherr radio remote control. The base of a Liebherr 43K fast-erecting crane can be seen in the background. The focus is on the remote control, whose controls and emergency stop switch are clearly visible.

Simultaneous operation of all drives
The crane operator usually operates crane drives individually to prevent the load from swaying. But this slows down the work process and reduces efficiency as the load isn’t transported directly to its destination.

Solution: Sway Control (Plus)
The assistant allows the crane operator to utilise all crane drives simultaneously, in a controlled manner and without load sway. This significantly shortens lifting times and increases productivity as there are no unnecessary interim stops and the load can be moved to its destination via the shortest route.

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Availability

Sway Control is available as standard for the 25 L & 33 L and the 43 K, 61 K & 91 K. Sway Control Plus is available as an option for these models.

TO THE L SERIES

TO THE K SERIES

Other assistance systems

The image shows a stylized construction site scene in which a crane is precisely lifting a large slab over a pipe system. Two construction workers wearing helmets and high-visibility vests are supervising the process—one on the ground and one on scaffolding. Yellow lines in the background visualize the planned path of movement for the load. — Positioning Pilot

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The image shows a stylized construction site scene by a river or lake. A crane lifts a large orange building component over the water, while a construction worker stands on the shore and directs the operation with hand signals. In the background are a bridge and several other cranes. The reflection of the load in the water emphasizes the precision of the movement. — Vertical Line Finder

The image shows a stylized construction site scene: A construction worker wearing a hard hat and work clothes is manually operating the hook of a crane. A yellow circle and arrows are marked on the ground to indicate the direction of movement. On the right-hand side of the image is a packaged beam that is to be lifted. The scene illustrates the operating principle of the Liebherr Guided Hook assistance system, which allows the slinger to control the crane hook directly and precisely. — Guided Hook

The crane operator is responsible for lifting and moving the load safely. The assistance systems are there to provide support. Liebherr recommends that crane operators undergo crane operator training.
The assistance systems are not always useful in all lifting situations, e.g. in confined areas, which is why they can be activated and deactivated at any time.

Sway Control & Sway Control Plus

Use examples

Availability

Other assistance systems

Notes on use:

Technical information in detail

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