Due to its importance as one of the major hubs for ferry services to Corsica and Sardinia, the Port of Vado Ligure in northern Italy has undergone major development project, deepening the the waterways in the port area between 11 and 14m, as well as adding new piers in the bay area.
Dredging contractor Co.Ed.Mar from Chioggia (Italy) used its self-propelled barge “Wise” to remove the sediments. The barge is equipped with a brand new Liebherr duty cycle crawler crane type HS 8130 HD with hydraulic clamshell bucket.
Liebherr reported that, thanks to the optimum grab capacity of 6m³, quicker movements and larger outreaches can be achieved during dredging. Co.Ed. Mar attains cycle times of only 45 sec. when dredging material from the seabed and 25 sec. when unloading the vessel. This results in an average turnover of approx. 400m³ per hour (equal to the barge loading capacity).
According to Liebherr, a number of factors contributed to Co.Ed.Mar’s decision to choose the duty cycle crawler crane HS 8130 HD. With a total weight of approx. 120t including crawlers, the machine can be quickly and effortlessly positioned on or off the barge so providing the owner with a high level of flexibility and the option to use the machine in different areas.
“The duty cycle crawler crane is a real all-rounder and can not only be fitted with grabs of capacities up to 10m³ for dredging or material handling purposes, but also with a whole range of attachments for deep foundation and lifting applications,” said Liebherr.
HS 8130 HD
- Engine power: 505 kW;
- Grab volume: 6 – 10m³;
- Boom length: 26m (+ additional 6m extension);
- Line pull: 2 × 35t;
- Weight: approx. 120t incl. crawlers;
- Turnover: 400m³ per hour (clamshell dredging with 6m³ hydraulic grab).