The Liebherr MK 140-5.1 is a highly versatile mobile construction crane, renowned as a “taxi crane” for its ability to handle multiple operations in a single day without additional logistical support. This crane is specifically designed for demanding urban environments, offering compact dimensions and various luffed positions that allow for efficient work in close proximity to buildings. Its core strength lies in the innovative VarioJib system, which provides flexible use of both trolley and luffing modes. With a maximum hook height of up to 94.4 metres and a jib length reaching 65.0 metres, the MK 140-5.1 delivers exceptional reach and lifting capabilities. The crane also features a telescopic tower with three standard hook heights, a powerful yet quiet diesel generator, and infinitely height-adjustable elevating cab that ensures the operator always has a perfect view of the load.

Engineered for maximum efficiency and environmental responsibility, the MK 140-5.1 offers an electrically operated crane with a hybrid power supply, enabling emission-free operation to significantly reduce environmental impact. The crane’s flexible support system with three different support widths, combined with self-ballasting capability and a demountable support spars, ensures quick and safe setup on any job site. The Micromove function allows for fine positioning with millimetre precision at the touch of a button, making it ideal for sensitive lifting tasks. A 6-cylinder Liebherr diesel engine delivering 400 kW (544 PS) and a ZF 12-speed transmission with AS-TRONIC system provide reliable performance, while the crane’s low emissions and HVO readiness contribute to up to 90% CO₂ emissions reduction. With advanced smart assistance systems, five steering programs including active rear axle steering, and a comfortable driver’s cab with excellent road visibility, the MK 140-5.1 combines operational safety, flexibility, and sustainability for the most demanding construction projects.