Liebherr has launched a new addition to its MK line up of self-erecting mobile tower cranes, the MK 120-5.1.
The new five axle crane bridges the gap between the four axle MK 88-4.1 and the five axle MK 140-5.1 from which it has been developed. The key changes on the MK 120 are a shorter jib - 52 compared to 65 metres - a slightly higher jib tip capacity, and six tonnes less counterweight.
The new crane has a maximum capacity of eight tonnes - the same as its bigger five axle brother - but features a 52 metre jib, with a jib tip capacity of 2.1 tonnes and maximum luffing angle of 40 degrees compared to 70 degrees in the MK140. It also features a new 12 inch TC-OS (Tower Crane Operating System) display screen with updated user interface which aims to be more versatile and easier for the crane operator to use. The screen can be used in full or split screen mode in order to show diverse information feeds on different screen areas. The display is set to be rolled out across the entire Liebherr MK mobile tower crane line up by the end of 2025.
The MK 120-5.1 can also be ordered with an optional smaller load hook for use on sites with buildings with façade scaffolding and where the load has to be moved between the building and the scaffold. It only takes a few minutes to change the hook on site. The smaller hook has the same capacity as the standard hook and will also be made available on all MK cranes.
The lead customer is Swiss steel erector and wood building contractor Zaugg. Managing director Stephan Zaugg said: “The MK 120-5.1 is exactly the right crane for our fleet. Its jib length and lifting capacity make it ideal for our customers’ construction sites. 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.”
A Belgian company has also already placed an order for the new crane, deliveries are due begin next summer.
Comments