SECTOR REPORT Ӏ TOWER CRANES
Perhaps the most eye-catching of all the crane types, tower cranes are often seen as the ‘star of the show’ at construction sites around the world. And when assembled together en masse, such as in our Job of the Month (p8) or with the mix and match of makes and models seen at big construction trade shows, such as the Bauma trade show in Germany, the sight is spectacular.
It seems the enforced slowing of international trade over the last few years due to Covid has allowed engineers at various manufacturers some breathing space, some thinking time if you like, during which they’ve come up with new innovations and developments. We look at some of the latest cranes and developments showcased at Bauma 2022. According to the organisers
of the show around half a million people visited the Bauma 2022 and the share of international visitors was around 50 percent. With a stand around 15,000
square metres in size, Liebherr is traditionally one of the largest exhibitors at the show. "Our new products and services have generated a lot of interest among our customers from all over the world," confirms Marco Guariglia, managing director of sales at Liebherr Tower Cranes. A highlight of Liebherr’s outdoor area were its new tower cranes with fibre rope. Liebherr
The 1188 EC-H 40 Fibre is Liebherr’s first high-top crane with fibre rope technology
used the show to launch the extension of its line of Fibre tower cranes with the 258 HC-L 10/18 Fibre luffing jib, the high-top 1188 EC-H 40 Fibre, and the 520 EC-B 20 Fibre and 370 EC-B 16 Fibre flat-top cranes. Liebherr also showcased its
first hydraulic luffing jib crane in combination with a slim and climbing tower system, with the 195 HC-LH 6/12, plus prototypes of the 195 HC-LH 6/12 hydraulic luffing jib crane and the revised L1-32.
Liebherr’s 520 EC-B 20 Fibre is optimised for transport and assembly
UPWARD EXPANSION The 1188 EC-H high-top crane with fibre rope was Liebherr’s most powerful standard crane on display at the show. Liebherr says the lighter weight of the fibre rope enables a lighter crane design compared to that of a steel rope model, plus a longer service life than steel rope, with Fibre cranes achieving significantly higher performance values compared to their steel rope counterparts. The 1188 EC-H is Liebherr’s first high-top to use fibre rope.
With a jib head load capacity of
up to 13.1 tonnes at an 80-metre radius the crane is an upward expansion of Liebherr’s standard product portfolio – with the Fibre model surpassing the 1000 EC-H steel rope crane by up to 2.1 tonnes in jib head load capacity. The standard maximum reach
of the 1188 EC H 40 Fibre is 90 metres and freestanding hook heights of up to 81.3 metres can be achieved using Liebherr’s compact 24 HC 1000 tower system. All these qualities combine, Liebherr claims, to make the crane ‘a great choice' for bridge, power station and plant construction, especially with its 40-tonne maximum load capacity and smart assistance systems. The high-tensile fibre rope is the
result of ten years of development work by Liebherr and the rope manufacturer Teufelberger. The fibre rope is more durable, easier to handle when reeving due to its lighter weight, and maintenance is less complicated as lubrication isn’t required, says Liebherr. Operational safety is increased as operators are able to see at a glance when the fibre rope needs replacing due to the red layer which indicates that the rope has reached the end of its service life.
FIBRE LUFFER Liebherr’s first luffing jib crane using fibre rope is the 258 HC-L 10/18 Fibre luffing jib, which is available for order worldwide. The crane offers a load increase of up to 43 percent at the jib head and a 25 percent rise in maximum lifting capacity compared to the steel rope model. The new crane is a particularly well- suited to construction projects
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