Improved mobility for narrow track Liebherr

By Sarah Ann McCay04 March 2012

The Liebherr LR 1600/2-W narrow-track crawler crane

The Liebherr LR 1600/2-W narrow-track crawler crane

Liebherr has improved the mobility of its LR 1600/2-W narrow track crawler crane by extending its superstructure and reducing its ballast from 190 tonnes to 150 tonnes.

The 600 tonne capacity crawler crane can now get on the move with a main boom of up to 108 metres, and a 12 m fixed jib. Depending on the boom length, a central ballast of between 0 and 65 tonnes can be added.

The changes to the LR 1600/2-W have speeded up the set up process, as there is no need to reconfigure the lattice elements. The use of an SL boom system makes transport easier as the L lattice boom sections can be carried inside the S pieces.

With the narrow track versions of Liebherr crawler cranes, the star-pattern outrigger supports are installed between the middle part of the crawler chassis and the superstructure. This makes it possible for two support spars to be slewed to the front and two to the rear when the crane is on the move. The jack pads are guided close to the ground so that if the crawler carrier starts to sink in, they engage immediately and enlarge the standing base area.

The slewing outrigger supports also help to adjust the support base width to offer more security against tipping sideways, the manufacturer said.

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