The new 100 tonne class LR 1100.1 crawler crane from Liebherr-Werk Nenzing has been designed for a wide range of tasks. It can be configured either with a main boom up to 62 m, or with a main boom up to 44 m in combination with a fixed jib up to 20 m.

The LR 1100.1 is fitted with a 230 kW engine, the most powerful in its class, says Liebherr. An Eco-Silent Mode reduces the engine speed to a predefined level – reducing diesel consumption and noise emissions without affecting performance levels.

An Automatic Engine Stop Control is designed to switch the engine off, after checking certain system functions, during longer work interruptions.

Transportability

Liebherr said the crane is optimised for quick transfer between construction sites. It has a transport width of 2,983 mm or 3,500 mm, depending on whether the crane is transported with or without crawlers. At the construction site, the assembly of the LR 1100.1 is simplified through the self-assembly system and radio remote control.

Remote control

The crane has radio remote control. This allows the crane operator a high degree of flexibility and additional safety even during operation, said Liebherr. The crane can be operated from outside the cabin and so allow for a better overview of the construction site. Blind spots can thus be better avoided. Depending on the application, a second person is no longer required to assist with hand signals during lifting operations. The cabin of the new crawler crane can be elevated by 2.8 m thus allowing for a good all-round view.

Slope safety

For the safe negotiation of slopes and inclines, the new crane is fitted with Gradient Travel Aid. The control system automatically calculates the centre of gravity and warns the operator before the crane leaves the safe area. While travelling, the operator receives information about the permissible and actual gradient and the crane's overall centre of gravity at all times. If necessary, the boom angle can be altered so that the machine remains in the safe area.

Read more about the new 100 tonne class LR 1100.1 in the crawler crane feature by Stuart Anderson in the forthcoming April issue of Cranes Today, out soon!