HIGH-RISE CONSTRUCTION Ӏ SECTOR REPORT
design,” explains project manager Markus Richter. The compact tower top means
that multiple cranes can be positioned close together while keeping the overall height of the cranes low. A hoist rope support on the
jib reduces rope sag from seven metres to just 1.5m, minimising the risk of collision with another crane’s hoist rope while slewing. The jib length can be adjusted
Wolff 8095 Compact. It is the
company’s first trolley jib crane in the 900mt class. It comes in two variants and
a key feature is its automatically couplable double trolley. Although high capacity, the crane is compact – making it well-suited to city centre work. “Its tower top section is about six meters shorter than the cross- jib version, which makes it very compact and economical,” says Dr Abouelezz. The two-fall model Wolff
8095.25 has a maximum lifting capacity of 25t and a tip load capacity of 10.5t (with Wolff Boost at an 80m jib length); the convertible two- and four-fall model Wolff 8095.40 has a double, automatically couplable, and separable trolley. In four-fall operation, the crane can lift up to 40t with the double trolley and still achieve a lifting capacity of 7.8t at the tip at maximum jib length (or 8.6t if using Wolff Boost).
If a higher tip load capacity is needed the trolley can be split at the push of a button. The advantage is that crane personnel
16 CRANES TODAY The Wolff 550B
can reach 82m without support
no longer have to climb onto the jib to manually separate the trolley. In two-fall operation with a
single trolley the Wolff 8095.40 achieves a tip load capacity of 9.4t (10.3t with Wolff Boost). The high capacity is due not only to the lighter individual weights of the separable trolley but also to the design of the first three jib parts as a four-chord instead of a three-chord version. “This optimises force
transmission in the jib and makes individual components lighter, enabling significantly higher lifting capacity than with a three-chord
in five-metre increments between 30m and 80m. The crane features a tower connection for the 2.90 x 2.90m TV 29 tower element, which, when combined with the next larger Wolff tower element TV 33, enables freestanding tower heights of up to 100m – ideal for high-rise prefabricated structures where tie- ins are not possible. The above examples show how the latest generation of cranes are engineered for the realities of high-rise construction, with each crane model demonstrating advancements that directly respond to the evolving needs of builders working at height. These cranes aren’t just
construction tools – they’re really strategic enablers of vertical growth, helping redefine what’s possible in the skylines of tomorrow.
The Wolff 8095
Compact from Wolffkran has a four-chord jib
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