Liebherr has expanded its existing MK line with a new mobile construction crane designed to bridge the gap between the MK 88-4.1 and the MK 140-5.1. The new MK 120-5.1 features a 52-metre jib and a maximum lifting capacity of 2,100 kilograms at its jib head. The new crane is designed to be agile with a small turning radius that facilitates site access via narrow streets and intersections.
“The MK 120-5.1 is exactly the right crane for our fleet,” says Stephan Zaugg, managing director at Zaugg AG Rohrbach in Switzerland. “Its jib length and lifting capacity make it ideal for our customers’ construction sites.”
The new crane is based on the established MK 140-5.1, so crane operators who know how to operate this model can work with the new one without extensive additional training.
New crane, new display
The MK 120-5.1 is equipped with the new Liebherr TC-OS display. The TC-OS (Tower Crane Operating System) user interface is designed for ease of use and flexible customization by the crane operator. Its 12-inch touch display can be used in split and full screen mode. This means that diverse information can be displayed across different screen areas. The display is set to replace the existing version in all mobile construction cranes by the end of 2025.
Optional smaller load hook for optimal load positioning
The MK 120-5.1 can be ordered with an optional smaller load hook. This version is appropriate for sites with existing buildings, where scaffolding is in place and the load has to be moved between the building and the scaffolding. It only takes a few minutes to change the load hook on site. The smaller load hook can handle the same lifting capacity as its large counterpart and will soon be available for all Liebherr mobile construction cranes.
Deliveries will start in summer 2025
“We are excited to be the first ever customer to acquire the new MK. Reliability, customer service, and the great reputation of Liebherr’s mobile construction cranes were deciding factors for our purchase,” says Zaugg. A company from Belgium has also already put in an order for the MK 120-5.1.
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