The MK 120-5.1 is the most recent addition to Liebherr’s mobile construction crane lineup. The five-axle machine spans the gap between the MK 88-4.1 and the MK 140-5.1. Along with lots of lifting power, it includes a redesigned display and an optional smaller load hook for working in tight places.

With a jib length of 52 metres and a maximum lifting capability of 2,100 kilogrammes at the jib head, the new MK 120-5.1 provides remarkable performance. The crane expands Liebherr’s existing MK portfolio, filling the gap between the MK 88-4.1 and the MK 140-5.1. One of the mobile construction crane’s main advantages is its agility; its small turning circle allows for easier site access through narrow streets and crossroads.

The new crane is based on the existing MK 140-5.1. Crane operators who are familiar with the previous model can use the new one without requiring extensive additional training.

New crane, new display
The MK 120-5.1 features the new Liebherr TC-OS display. The TC-OS (Tower Crane Operating System) user interface is designed for ease of use and flexible adaptation by crane operators. The 12-inch touch display supports split and full-screen modes. This means that various types of information can be presented over many screen areas. The display is scheduled to replace the current version in all mobile construction cranes by the end of 2025.

Smaller load hook for better load location
The MK 120-5.1 can be supplied with a smaller load hook. This version is particularly useful on sites with existing buildings when scaffolding is present and the weight must be shifted between the building and the scaffolding. It takes only a few minutes to alter the load hook on-site. The smaller load hook has the same lifting capacity as its larger counterpart and will soon be available on all Liebherr mobile construction cranes.

“Exactly the right crane for our fleet”

The first clients have already praised the latest addition to Liebherr’s mobile construction crane line. “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,” says Stephan Zaugg, Managing Director at Zaugg AG Rohrbach (Switzerland). “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 firm from Belgium has already placed an order for the MK 120-5.1. Deliveries will begin in the summer 2025.

For more information, visit: http://www.liebherr.com