Kiesabbau Wiedemann (KW) based in southern Germany opted for three HS 8070 HD and one HS 895 HD Liebherr duty cycle crawler cranes. All four machines are configured for dragline operation.
The HS 895 HD is a powerful machine in the 200tonne class. Thanks to its solid steel construction and its strong 12-cylinder 670kW diesel engine, the duty cycle crawler crane with dragline bucket is ideal for material handling tasks. It can also be used as a carrier machine for various other applications.
The HS 8070 HD belongs to the latest generation of Liebherr duty cycle crawler cranes. It is equipped with a 320kW diesel engine to Stage IV/Tier 4 Final emissions standard. Liebherr stress that a key benefit of this crane is its low fuel consumption, which is achieved by both its optimised hydraulic system and the Eco Silent Mode. This function lowers the engine speed to a predefined, required level. Crucially, the low fuel consumption can be achieved, says Liebherr, without any impact on operational output.
Furthermore, the Stage IV/Tier 4 Final emissions standard allows the safe use of the duty cycle crawler cranes in low emission zones.
“The low fuel consumption of the HS 8070 HD is exceptional. With a handling capacity of 300tonnes per hour, the machine requires up to 30% less diesel than comparable models of the same size,” says KW technical director Florian Wiedemann.
All KW’s newly acquired Liebherr machines can be used for dragline and grab operation, and demolition work as well as for mobile crane operation. Delivery of the four duty cycle crawler cranes started in late 2015 and will be completed within the coming weeks with delivery of the last of the three HS 8070 HD units.
