Grab dredger ‘John Madsen’ for sale
- Build Date:
- 1972, at Lindenau P. Kiel, Germany (conv. 1984/2010)
- Class:
- BV
- Dims (L x B x D):
- 29.20 x 8.00 x 1.90m
- Draught (m):
- test
- Dredge Depth (m):
- Up to 30 m in standard configuration, option 60 m
- Hopper Capacity (m3):
- 100 cbm /150 mt
- Excavator type:
- Sennebogen 640 A 50 mt excavator; boom: 22.00 m; 12-15 mt
- Grab (type/details):
- Orange peel stone grab, 2 x clamshell grabs with teeth of 2.5 m³, one closed flat grab of 4.0 m³
- Spuds (L x D):
- 2, depths up to 10.00 m
- Discharge type:
Additional Information
Key features
► Self-propelled with own cargo hold
► 2 spud legs, anchors and positioning system
► Sennebogen 640 A wire excavator
► Excavator converted to biodegradable hydraulic oil
► Can dredge into hold, to barges or self-unload to shore
► Suitable for soft materials, such as sediment, mud, sand
► Stone installation for breakwaters, scour protection etc.
► Permanently equipped for boulder clearance jobs
► Highly manoeuvrable, fast transition from dredge to sail
► Max draft of only 1.90 meters
► Accurate PDS2000 GPS dredge control system
Speed: 6.0 / 5.0 / 2.5 knots (empty/full/min)
Main engine: 2 x Sisu 612, 2 x 180 bhp
Aux engines: 1 x Sisu 420DSMG – 203A/107 kW
1 x KVA diesel – 33A/17,6 kW
Bow thruster: Yes, 43 HP
Hold size: 100 cbm (9.50 x 5.20 x 2.05 m) /150 mt
Excavator: Sennebogen 640 A 50 mt excavator; boom: 22.00 m; 12-15 mt
Dredge depth: Up to 30 m in standard configuration, option 60 m
Grabs: Orange peel stone grab, 2 x clamshell grabs with teeth of 2.5 m³, one closed flat grab of 4.0 m³
Weight syst.: Yes
Acc.: max 4 persons
Spud legs: 2, depths up to 10.00 m
Anchors: 3 point mooring, 2×3 tonne and 1×2 tonne winches
Mooring / positioning / dredging equipment
