The LTM 1230-5.1 is the successor to the global success that was the LTM 1200-5.1. In its development work, Liebherr pursued the objective of increasing both the boom length and the lifting capacity of its predecessor. The result: the LTM 1230-5.1 delivers an extremely long telescopic boom and sets new standards in terms of lifting capacity. With lattice extensions, the maximum hook height has been increased by 10 metres to 111 metres. The new Liebherr LTM 1230-5.1 is an ideal crane for working on steep gradients and large hook heights, for example for erecting tower cranes or maintenance work for wind turbines.
Liebherr has a wide and variable range of lattice jibs for the new LTM 1230-5.1. The 11.5 to 22 m long folding jib can be mounted at an angle of 0°, 20° or 40°.
The maximum ballast for the new LTM 1230-5.1 is 72 t, the same as its predecessor, but as a result of its VarioBallast®, which can be adjusted from 4.8 metres to 5.7 metres, the lifting capacity at great radii has been significantly increased compared to the LTM 1200-5.1 and also the LTM 1220-5.2.
The engineers at Liebherr-Werk Ehingen GmbH placed the multi-award-winning VarioBase® support technology at the focus of the structural steel construction when creating the concept for the new crane. This meant that the new LTM crane is the first to have an asymmetrical support base – with the width being 7.4 metres at the front and 8.1 metres at the rear. VarioBase® means that it is now possible to generate particularly high lifting capacities, particularly at the rear working area over the 8.1 metre wide supports – calculated in real-time by the LICCON controller. This new digitalisation facility has a major influence on the structural steel technology and enhances the customer benefit in the form of lifting capacity increases.