Construction

Full speed ahead for Liebherr 65 K fast-erecting crane

The Liebherr 65 K fast-erecting crane was presented to the public for the first time at the Intermat 2012 event in Paris. The new design of the 65 K is based on the successful concept of the 81 K, which was unveiled two years ago, and now “provides a whole range of optimised and further […]

The Liebherr 65 K fast-erecting crane was presented to the public for the first time at Intermat.

The Liebherr 65 K fast-erecting crane was presented to the public for the first time at Intermat.

The Liebherr 65 K fast-erecting crane was presented to the public for the first time at the Intermat 2012 event in Paris. The new design of the 65 K is based on the successful concept of the 81 K, which was unveiled two years ago, and now “provides a whole range of optimised and further developed functions”.

This means that the new fast-erecting crane sets new standards in the 65mt class when it comes to capacity, operation and safety on the construction site.

With a maximum lifting capacity of 1,400 kg at a radius of 40m, the 65 K provides absolute top values in its size class. As with the larger 81 K, all loads are moved using the pure two-fall operation, SPEED2LIFT. No re-reeving, no time lost, and maximum load handling on site – unique achieve-ments in this crane class. Another excellent performance value is the maximum lifting capacity of 4,500 kg.

New solutions for the transport of the crane also make it possible for the complete 65 K, including its ballast, to be transported to the site with just two trucks. In comparison with predecessor models, the transport dimensions have also been perceptibly improved. The transport length, reduced to less than 14.5 metres, and the smaller wheel gauge of 6 metres, improve the manoeuvrability of the crane when being transported, which means that the 65 K can be moved into position with no problem at all, even in the most restricted spaces between buildings. Thanks to the design layout of the superstructure, with an extremely short overlap, the 65 K can also be erected very close to a building.

Other top values in this crane class are the low support width, of 4.2 m x 4.2 m, and the slewing radius optimized to 2.55 m. This provides the new 65 K with particular advan-tages in densely built areas and restricted spatial situations.

the assembly handling is sup-ported by the semi-automatic interlock between the tower and the slewing platform by means of the quick-connection facility, and by the reliable erection kinematics, which allow for very high air assembly, even over large obstacles. The jib tie bars ensure safe and reliable handling, and the semi-automatic ballasting device, in combination with the self-centring ballast slabs, allow for ballasting to be carried out extremely rapidly without the need for an additional crane.

A modern PLC control system provides a whole range of possibilities for safe assembly and economical operation. For first-time assembly, the simple scaling system of the crane, with only one weight, and the LCD graphics display, make rapid and safe setting up and adjustment of the crane even easier. Other advantages when it comes to safety are the optionally available operating-range limiting system (ABB), and the LMB load-moment limiting system. In the operation mode all the status information is represented on the LCD display, in an easy overview with pictograms.

The new 65 K makes use of the successful drive and control technology which Liebherr first introduced on the 81 K fast-erecting crane, and which had previously only been used on top-slewing models.

Specifications

Max. hook height: up to 34.6m
Hook height at 30° luffed position: up to 51.7m
Radius: 28.0 / 35.0 / 40.0m
Lifting capacity at 40.0 m radius: 1,400kg
Lifting capacity at 35.0 m radius: 1,800kg
Lifting capacity at 28.0 m radius: 2,600kg
Maximum lifting capacity: 4,500kg

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