Thursday, July 10, 2014

New Mobile Harbour Crane Copes with All Manner of Cargo Besides Container Freight

Port Doubles its Box Handling Capacity with New Order
Shipping News Feature

NORWAY – In one fell swoop last month the Port of Drammen doubled its container handling capacity with the delivery of a second LHM 550 Liebherr mobile harbour crane following an original order which saw the delivery of an LHM 400 in 2008. Additionally, the versatile LHM 550 is also capable of moving all manner of freight, including bulk, general cargo and particularly heavy lift operations with its lifting capacity of 144 tonnes, over 40 tonnes more than any other machines currently in use at the port.

Located southwest of the Norwegian capital Oslo, Port of Drammen required more capacity as it saw a 30% container volume increase between 2012 and 2013. In 2013, more than 30,000 containers were handled throughout the year. This investment in additional cargo handling capacity is important for the regional economy with goods regularly passing through the port including spares, furniture, electronics, wine and food.

The increase in lifting capacity is expected to assist a drive for new business with the potential to handle the out of gauge traffic associated with the regions expanding subsea support industry. This extra dimension will boost the Port of Drammen’s competitiveness in this regard and Einar Olsen, the Port’s Director, commented:

“We are experiencing a significant container traffic increase in Drammen. Due to the LHM 550 we have sufficient capacity to smoothly handle current container volumes. Moreover, we have capacity available for future growth.”

For the technically minded, the new crane is equipped with Liebherr’s Pactronic® hybrid drive system. Awarded with the State Prize for Clean Technology in Austria, this cutting-edge hydraulic hybrid drive for cranes is the first to achieve increased handling performance with reduced fuel consumption. By adding an accumulator as a secondary energy source instead of a bigger or additional prime mover, Pactronic® is regenerating the reverse power while lowering the load. In addition, the surplus power of the primary energy source is also used for charging the accumulator.

The stored energy is transferred back to the system when the crane requires peak power during hoisting. In terms of turnover capacity, that means a plus of 30% compared to a conventional machine with equal power rating of the primary energy source. In addition, Pactronic® leads to a reduction of fuel/energy consumption (litre/ton) as well as CO2 and exhaust emissions in the range of 30% depending on the operation. The hybrid drive system is virtually maintenance free as it just needs visible inspection every 10 years. 100% recyclability as well as less noise exposure are additional eco-friendly benefits of the system.

Photo: The new crane in action at the port.