Liebherr is introducing a lightweight version of its 60 tonne LTR 1060 telescopic crawler crane.
The LTR 1040 will meet the needs of projects and tenders that call for telescopic crawler cranes in the 40 tonne class. Contractors can upgrade the LTR 1040 to make it into an LTR 1060 retrospectively if required.
The main difference of the LTR 1040 compared to the LTR 1060 is the significantly reduced ballast. Liebherr removed 10 tonnes of central ballast from the chassis, while an additional 10 tonnes of counterweight was removed from the slewing platform.
Its 40 metre telescopic boom is about 30 per cent longer than the standard in the class, allowing most crane jobs to be carried out without a folding jib.
High lifting capacities are important for assembling prefabricated components, one of the main areas of work for telescopic crawler cranes.
The LTR 1040 will hoist up to 8.6 tonnes with a radius of 10 metres throughout its entire 360-degree operating range. When it is fully raised, the lifting capacity of the 30.7 metre extended telescope is 18.8 tonnes and when fully extended, the 40 metre boom can hoist 10 tonnes.
Using a 16 metre double folding jib, the LTR 1040 can achieve a maximum hoist height of 55 metres and can hoist a weight of 3.1 tonnes in this configuration.
Fast set up times
The LTR 1040 can be transported particularly economically as it weighs just 43.5 tonnes, including its 5.6 tonnes of ballast. The axle loads for transport are less than 10 tonnes for a 3-axle tractor unit and a 4-axle semi low loader. By removing 5 tonnes of ballast, the LTR 1040’s weight can be reduced to 38.5 tonnes, which means it has a gross transport weight of less than 60 tonnes.
The crawler travel gear is retracted to a width of 3.0 metres for transport. The low crane height of 3.15 metres ensures that economical standard semi low loaders can be used.
With a 2.5 metre erection jib and a second hoist unit, it can also carry out work in 2-hook mode. The load absorbed with the erection jib by the low loader is transferred to the second hook on the telescopic boom. This means that prefabricated components can be rotated into the correct position and moved to the installation site on the crawler travel gear.
The LTR 1040 can hoist up to 17.7 tonnes with 4-line reeving of the hook block on the erection jib. The runner on the LTR 1040 can handle loads of up to 9 tonnes as it can also use a double reeving constellation.
Liebherr has designed the access to the crane cab to be particularly safe and convenient. The crane operator can access his workplace in any slewing platform setting using folding ladders, a fixed platform on the crawler track and an extra-wide step on the cab. There is no need to climb over the crawler tracks and chains