Liebherr says by using its HS 845 crawler crane, Kiesabbu wedmann was able to meet its project deadline in Grafenworth whilst lowering fuel consumption.
Kiesabbau Wiedemann used the HS 845 HD to extract gravel from the gravel pit of the
Equipped with a powerful 350kW/469 hp six-cylinder diesel engine, Liebherr says the durable steel structure of its HS 845 HD crawler crane provides ideal conditions for the heavy duty dragline application. The company’s Litronic control system, based on CANBUS technology, incorporates all control and monitoring functions in the HS 845 HD. According to Liebherr, this allows the machine to work reliably at extreme temperatures or humid conditions.
Additionally, the crawler crane’s electrohydraulic continuous proportional is said to enable precise and simultaneous crane movements, which are vital for dragline applications. A second swing drive increases swing torque resulting in short swing and fast loading cycles. The machine’s Interlock control system allows power lowering of the grab line when raising the dragline bucket with the hoist rope, saving energy and prolonging the working life of the hoist rope.
