C.840 HOPPER DREDGER

C.840 HOPPER DREDGER

This hopper dredger has been named “Fabio Duò”  in memory of the untimely demise of the former shareholder of Vittoria Shipyard S.p.A.. This vessel is provided with bottom doors activated by four hydraulic pistons, and a Liebherr HS 895 HD slewing crane for the grab bucket with a capacity of 200 tons.

Such unit has an Overall Length  of 80,90 metres, a Length Between Perpendiculars of 78,4 metres, a beam of 16 metres and a gross tonnage of 1.700. At the 4,3 metres draught the dredger can carry 3.000 deadweight tonnage, its maximum speed is 12 knots and it provides accommodation for 8 crewmen. The vessel is classified by RINA in MEDITERRANEAN navigation: within twenty miles of the coast and twelve hours maximum journey.

Thanks to the Liebherr HS 895 HD crane, the “Fabio Duò”  can perform the excavation of seas, lakes, lagoons and rivers seabed and transport the resulting material. Several applications of the cableway drag scraper are:

  • Lifting with 200 tons of maximum load in release
  • Dragline excavation, a branch that seemed destined to succumb, but thanks to its high performance equipment (such as the HS 895 HD crane) it benefits from a renewed interest from industry professionals
  • Fast and productive dredging, an unthinkable task in the past
  • Maritime works  useful for the realization of extreme engineering projects
  • Excavation and realization of the foundations for subsoil reinforcement works
  • Construction and demolition with almost 100 metres of available arm

Mounted without undercarriage, the Liebherr HS 895 HD is directly fixed to the hull, melding with the structure of the ship.  Designed to operate in the most demanding conditions, the strong arm and the structure allow the crane to operate with large hydraulic or mechanical excavation and dredging equipment (buckets / grapples), ensuring exceptional performances.

AUXILIARIES

 Main gensets  2 x CUMMINS 91 ekW
 Auxiliary engine  1 x IVECO AIFO 490 kW
 Emergency genset  1 x CUMMINS 49 ekW

ENGINES AND PROPULSION SYSTEM

The two CUMMINS KTA50M2 engines have the best power to weight ratio available, and are used by navies all around the world.

 Rated power   1194 kW @ 1800 rpm
 Gearbox   2x REINTJES reduction ratio 5,571:1.
 Trasmission   2x fixed propellers

DECK FITTINGS

  • N. 12 steel bollards
  • N. 4 steel fairleads
  • N. 4 hydraulic pistons for open the bottom door
  • N. 3 hydraulic anchor winch
  • N. 2 hydraulic spud poles
  • N. 1 Service Crane 1100 kg at 3.64 m
  • N. 1 Davit SWL 12 kN with rescue boat 4,5m

Performance

Speed 11 kn

 

DATI PRINCIPALI

 Length overall  80.90 m
 Moulded length  79.90 m
 Maximum beam  16.00 m
 Draft max  4.30 m
 Depth  5.50 m
 Crew  12
 Gross tonnage  1700 GT
 Net tonnage  500 GT
 Payload  3100 t
 Crane  Liebherr HS895HD – 250 t
 Gearboxes  2x REINTJES 5,57 1:1

 

TANKS

Fuel tank 146500 lt
Fresh water tank 46690 lt