Liebherr LG 1750NX

The Liebherr LG 1750NX is a 800-ton lattice boom truck crane, an upgraded version of the Liebherr LG 1750. Designed for large-scale lifting applications, such as wind turbine installation, this crane combines the power of a lattice boom system with the mobility and flexibility of a truck-mounted crane. Its maximum lifting capacity is 600 tons at a 16-meter working radius in the S6D2B configuration, making it a reliable choice for heavy lifting in both industrial and infrastructure projects.

The crane’s modular boom system allows for a variety of configurations to adapt to different project needs. The main boom can extend from 35 to 140 meters in the SDB configuration, providing exceptional reach and versatility. The heavy-duty configurations, such as S6D2B, offer the capacity to lift up to 600 tons with a boom length of 77 meters plus an additional 63-meter extension, giving it a working radius of 16 meters. For applications requiring even more height, the SL8HS and SL8DHS configurations enable lifting at greater heights, with a maximum combination of 140 meters of main boom plus 6 meters of heavy jib.

In wind farm projects, the LG 1750NX excels in handling towers up to 100 meters tall. It can operate at a working radius of 22 meters with a lifting capacity of 102 tons in the SL8H configuration and up to 128 tons in the SW configuration, ensuring safe and efficient operations even in strong wind conditions. The crane’s WindSpeed load charts and optimized jib systems allow for precise control, even in gusty environments, helping to minimize operational delays caused by weather conditions.

The crane is equipped with a powerful 8-cylinder Liebherr diesel engine, delivering 505 kW (686 hp) to support the crane’s mobility and lifting operations. Its robust transmission system includes ZF TC-TRONIC transmission with a lockable longitudinal differential, enabling smooth operation and transport between job sites. The crane’s carrier features 9 axles, with hydraulically powered suspension and steering, allowing the crane to maneuver on various terrains.

The crane’s derrick system (SDB) and counterweight options provide additional stability during heavy lifts. With a total counterweight capacity of 400 tons, the LG 1750NX is able to maintain balance and control, even with large loads at extended reaches. The derrick boom extends from 13 to 18 meters and can handle a range of lifting operations requiring precise weight distribution.

For transport and assembly efficiency, the LG 1750NX uses a pin-connected pallet weight system, allowing it to add and remove counterweights without the need for extensive setup time. This feature helps streamline crane assembly and disassembly, making it easier to relocate the crane between projects or sections of a large job site.

Overall, the Liebherr LG 1750NX offers a combination of high lifting capacity, versatile boom configurations, and advanced control systems, making it an ideal choice for large-scale industrial projects such as wind turbine installation, port handling, and infrastructure development. Its modular design and transportability further enhance its usability across various industries.