Three in a row for Liebherr

Three in a row for Liebherr

The STS crane in Malmö will have a waterside and landside outreach of 35 metres and 17 m respectively, with a span of 30 m and height under spreader of 29.5 m.

Its safe working load (SWL) will be 45 tonnes under single-lift spreader, 65 tonnes under twin-lift spreader and 70 tonnes under hookbeam.

The order from Vladivostok is the first for the company for its RMGs at the port and will see the supply two units, each with a rail span of 63 m and an operational outreach of 14.5 m either side. Lift height will be 18.5 m, with a SWL of 45 tonnes under the spreader.

In both orders the crane drives will be Liebherr DC.

At Sharjah container terminal, Liebherr recently completed the delivery of five16-wheel configuration one-over-six containers high rubber tyred gantry (RTG) cranes, which will span seven containers wide plus a truck lane at the Gulftainer terminal.

With a SWL of 40.6 tonnes under telescopic spreader, the cranes have a hoist speed of 23-52m/min and trolley speed is 70m/min. The crane’s travel speed is 70-130 m/min.

The RTGs have two power supply systems, including a high tension, 6.6kV cable reeling drums with sufficient cable for 270 m long travel and conventional diesel generator sets. In addition, the units will be able to operate in fully electric mode or using diesel generator to ensure operational flexibility.

Each unit has Liebherr DC crane drives and include the company’s Visuscan crane management system. The unique 8-rope reeving system results in sway-free operation during all motions ensuring minimal spreader/container positioning times to maximize productivity and reducing operating costs.

This, together with the drive and control system, allows simultaneous motion of main drives productivity gains of 30-40%, particularly evident under sustained or gusty wind conditions.

The addition of these RTGs brings the number of Liebherr RTGs operated by Gulftainer at its Sharjah and Khorfakkan terminals to 21. Two of the company’s STS cranes are also in operation at the Sharjah facility.