FROM compact loaders to huge mining equipment and towering cranes, Liebherr has lined up an impressive array of attention-grabbing machines at its stand, which it started erecting last November.

Framed by two long building sections raised on stilts, the stand will display more than 60 exhibits. Among them, the 357 HC-L 18/32 Litronic luffing jib crane will be celebrating its premiere at bauma this year. It is the successor to the tried-and-trusted 355 HC-L and has been further developed and technically optimised. The new 357 HC-L therefore fits neatly into the range of HC-L cranes and is available in both 12/24-tonne and 18/32-tonne versions.

The maximum load capacity of the model exhibited is 32,000 kg. The luffing gear has been optimised dependent on lifting capacity so that shorter adjusting times are possible. The jib of the 357 HC-L reaches its out-of-operation position at over 70 degrees and can, therefore, rotate freely in the tightest of spaces. At a high crane density, this can be a crucial factor.

The 355 IC standard tower system – unique in this crane class – is available as a climbing tower system for the 357 HC L both for interior climbing and for climbing outside the building. A striking feature is the exceptionally compact 1.9 m by 1.9 m tower cross-section, meaning the 355 IC can also be climbed in narrow elevator shafts. For higher tower heights, the 357 HC L can also be assembled onto the tried-and-trusted 500 HC tower system.

With the exceptionally compact 6 m by 6 m cruciform base and the 355 IC or 500 HC tower systems, the new luffing jib crane can also be used in tight construction site conditions.

The 357 HC-L has infinitely adjustable FC drive units exclusively. The entry-level model 357 HC-L 12/24 Litronic includes a 65-kW FC hoist unit, a 65-kW FC luffing gear unit with secondary brake, as well as two 7.5-kW FC slewing gear units as standard equipment for precise and targeted load handling.

The 357 HC-L is always supplied in the easy-to-use Litronic version. Using the programmable logic controller (PLC), the load can be moved at the touch of a button in the same way as with a trolley jib top-slewing crane in a level luffing movement.

Another component of the Litronic concept is the tried-and-trusted Micromove, which permits high-precision positioning of the load without the hoist gear brake engaging, offering a further benefit for safe and efficient crane operations.

150 EC-B
Liebherr will also present the new modular design 150 EC-B 8 Litronic flat-top crane. The basic 150 EC-B is available either in FR.tronic or Litronic versions. The Litronic version features PLC, whereas FR.tronic machines are operated via the traditional contactor control.

The new crane is available in a six- or eight-tonne version. These options provide a particularly high level of flexibility in terms of machine configuration, which means that the new crane can be optimally modified to meet a wide variety of site requirements and customer needs.

In the FR.tronic version, the 150 EC-B can be operated either with or without crane cabin. For crane operation without cabin, there is radio control available, ensuring that the crane driver has a very large action radius and a high level of flexibility on site.

With a maximum lifting capacity at the tip of 1,700 kg at 60 m radius, the 150 EC-B 8 Litronic sets the standard in its crane class. Its maximum load capacity is 8,000 kg in both versions.

The six-tonne version 150 EC B 6 lifts 1,800 kg at the tip with a 60 m radius. Its maximum lifting capacity is 6,000 kg.
The jib length can be configured as required in five-metre increments from 25 m to 60 m with all versions. This guarantees the optimum adjustment to a wide variety of site conditions on space-restricted sites. In addition, all loads are moved in efficient two-fall operation.

The 150 EC-B is normally fitted onto the tried-and-trusted 120 HC tower system and offers a freestanding hook height of over 52 m. Assembly onto the 185 HC and 256 HC tower systems is also possible.

Depending on usage requirements, the 150 EC-B can be attached to travelling or stationary substructures, including onto foundation anchors as necessary.

R 922
Also at bauma, Liebherr is presenting its new R 922 crawler excavator, which replaces the previous R 906 model. Together with the R 918 and R 926 crawler excavators, to be seen on partner stands, the R 922 is a model from the newly developed Liebherr range with operating weights of up to 30 tonnes. Its 105-kW (143 hp) Liebherr diesel engine with oxidating catalytic converter complies with Stage IIIB exhaust emission limits.

The new 22-tonne R 922 is designed for earthmoving and drainage work. Like all the new-generation excavator models, it is equipped with integrated excavator system technology for rapid, smooth working movements.

Compact loaders
Meanwhile, the jury of the Bauma Innovation Award has nominated Liebherr’s newly developed series of compact loaders as finalist in the Design category.

The Liebherr compact loaders – the L 506 C and L 508 C – on display at bauma represent an entirely new machine concept, says the manufacturer, and combine high performance with maximum safety and extreme versatility on all kinds of task. Both models are exceptionally low in height, at less than 2,500 mm.