Liebherr has unveiled a groundbreaking pile-tilting device that reduces the need for tandem lifts when tipping or turning long, heavy loads on jobsites.
Traditionally, such operations demanded two crawler cranes, tight coordination between two teams, and incurred high costs due to reduced lifting capacities. Now, with Liebherr‘s device, a single operator can manage the task efficiently.
Replacing the standard rope pulley set on the crane’s boom, the pile-tilting device allows continuous tilting or rotation of components weighing up to 90 tonnes from 0 degree (horizontal) to 90 degree (vertical). This process uses standard crane controls without diagonal pull on the boom, thanks to two hoisting winches operating on separate hooks. These can be synchronised or controlled individually, significantly reducing load sway.
Crucially, as the device aligns perfectly with the crane’s pulley axis, the load measurement and crane geometry remain unaffected. The built-in load moment limitation ensures safety during lifts without compromising capacity.
The new device enhances safety by reducing the number of personnel required in hazardous zones. It also offers environmental benefits, lowering diesel consumption, emissions, and transport costs. Its compact setup, needing space for just one crane instead of two, is especially advantageous in congested urban areas. Compatible with all LR series crawler cranes with lifting capacities from 130 to 400 tonnes, it even supports older models.
Optimising crane operations on floating structures
Liebherr has also introduced a new operating mode for cranes on floating platforms, addressing challenges like barge inclination changes during lifts. Previously, operators relied on paper load charts, which made it difficult to manage varying load moments and listing angles.
The new mode features load curves for inclinations from 0° to 3°, coupled with load moment protection. It continuously monitors and displays the floating unit’s inclination, issuing warnings if limits are exceeded. Operators can then adjust load curves accordingly. This system also prevents exceeding the crane’s maximum boom angle when setting down loads.
Adding to the safety concept is the ‘Vertical Line Finder’—an assistance system that automatically positions the crane’s boom head over the load’s centre of gravity. This reduces swaying and avoids contact with obstacles or personnel. At the push of a button, operators can counter diagonal pulls caused by shifting centres of gravity, extending the crane’s service life through reduced dynamic stress on the boom.