Ditch the generator for greater savings

The system is characterised by a hydraulic accumulator which supplements the fluid pump in delivering power to the system. This means that the system can boost power and efficiency considerably, with increased hoisting and lowering speeds.

At the same time, fuel consumption is reduced by utilising the reverse energy and surplus power within the system. This is especially important when discussing the environmental aspects of mobile harbour cranes, since it could be argued that the use of diesel generators is a problem.

As ICTSI’s Brian Oakley says: “In most of ICTSI’s mobile harbour crane operations, the cranes tend to be operated from their own diesel generators to yield superior flexibility. Under these circumstances, MHC’s are definitely less environmentally-friendly.”

But while the Pactronic hybrid drive system is more environmentally-friendly, it is also useful for incidents that require peak power, like for example, bulk handling. It is also essential for reduction in sustainable carbon emissions, with a decrease in 30%. And another key factor is that it allows for a notably quieter performance – something to take into consideration by users who operate cranes near residential areas.

Commenting on the benefits of the system, Dr Klaus Schneider, director for drive systems, says: “Offering a unique combination of extremely low fuel consumption and supreme performance, Pactronic represents an essential milestone in Liebherr’s strategy on the way to genuine ultra-efficient, low-emission cargo handling.”