Green light for shipping traffic
More than three million passengers per year pass through the port on their way to the Tuscan Archipelago, Sardinia or Corsica.
Over the years the depth of the water at the mouth of the port was reduced to as little as 8 m through sediment. Not only was sediment removed but also the depth of the water was increased to 14 m in order to allow for larger vessels to run into the port.
Great tasks require great machines
600,000 m3 stones and sediment had to be removed within six months.
Material amounting to a total of 600,000 m3 had to be removed from the entrance to the port. On the one hand, the challenge lay in achieving high levels of turnover and, on the other hand, in removing not only sediment but also larger stones. With the duty cycle crawler crane type HS 8300 HD, the contractor Zeta S.r.l. found a real powerhouse and a suitable solution for this dredging project.
The work in Piombino was carried out in a six-month project by the Italian dredging specialist Zeta S.r.l.
Hybrid duty cycle crawler crane with low consumption
The contractor Zeta S.r.l. is delighted with the environmental and economic advantages.
The duty cycle crawler crane is equipped with a hybrid drive system. Through the storage and subsequent reactivation of surplus energy the turnover can be increased and, at the same time, the fuel consumption can be significantly reduced. Despite high levels of turnover the duty cycle crawler crane has up to 50 % lower diesel consumption (60 l/h) in comparison to similar models.
The work in the Port of Piombino clearly confirmed that the HS 8300 HD is a machine for heavy duty material handling.
Turnover of 2000 tonnes per hour
With a grab volume of 22 m3 and short working cycles of only 45 seconds, the duty cycle crawler crane handles 2000 t of material per hour.
Vessel and duty cycle crawler crane as one unit
Mounted on a tailor-made pedestal, the duty cycle crawler crane is permanently installed on the vessel.
Short working cycles
The dredger Maria Vittoria Z has a capacity of 3000 tonnes and can be fully loaded in less than two hours.
Designed for continuous performance
The dredger was loaded and unloaded by the HS 8300 HD up to four times each working day between 05:00 and 20:00 hrs.
Port expansion
The dredged material was put to good use for the expansion of the Port of Piombino.
DPC Award
"Highly Commended" Innovation in Dredging Equipment
Liebherr was distinguished with “HIGHLY COMMENDED” at the “Dredging and Port Construction Innovation Awards” in London. This recognition of our work is a clear positioning for Liebherr in the dredging sector.
Dredging Assistant
Duty cycle crawler cranes at a glance
The duty cycle crawler cranes are robust and flexible in use and thus perfectly designed for dynamic applications. Thanks to their efficient hydraulic system great turnover performance is achieved.
Job report
Dredging application of a new HS 8130 HD duty cycle crawler crane operating on a high altitude reservoir in the Swiss Alps. Job report dredging
