CUTTER SUCTION DREDGER 450

Dredger Main Particulars

Type of dredger Cutter Suction Dredger
Pontoons 3 dismountable pontoons
Transport Dismountable on flat tracks
Suction pipe diameter 500 mm 20 inches
Discharge pipe diameter 450 mm 18 inches
Suitable for dredging material Clay, medium sand, and coarse sand
Dredging depth at 45 degrees 12.0 m 39.4 ft
Production 900 m³/hr 1,177 yd³/hr

Dredge Power Unit

Total Installed Power 1,060 kW 1,420 hp
Main Engine power 810 kW 1,085 hp
Main Engine speed 1,800 rpm
Auxiliary Engine power 232 kW 311 hp
Auxiliary Engine speed 1,800 rpm
Cooling system Boxcooler
Generator 22 kVA

Dredger Main Dimensions

Length overall including ladder 30.9 m 101.4 ft
Number of pontoons 3 dismountable
Length over pontoons 19.0 m 62.3 ft
Width overall during operation 6.7 m 22.0 ft
Width overall during transport 3.0 m 9.8 ft
Depth, main pontoon 2.45 m 8.0 ft
Depth, side pontoon 1.8 m 5.9 ft
Design draught 1.2 m 3.9 ft

Dredge Pump

Type DY450-400
Configuration Single-stage centrifugal pump
Position Inboard, mid-pontoon
Suction diameter 450 mm 18 inches
Discharge diameter 400 mm 16 inches
Spherical passage 200 mm 8 inches
Impeller number of vanes 3
Drive power 810 kW 1,085 hp
Drive Direct drive through a single-stage gearbox
Pump speed 400 – 600 rpm
Wear material Wear-resistant cast iron
Gearbox Single-stage, vertical offset
Shaft seal Mechanical seal

Dredge Cutter Head

Type DY1500-C Multi-purposed
Configuration Crown-type interchangeable teeth
Cutter diameter 1.5 m 4.9 ft
Cutter motor power 110 kW 147 hp
Cutter motor speed 0 – 35 rpm
Cutting system Replaceable (narrow, pick-point, chisel type)

Dredge Side Pull Winch

Type of winch Drum winch
Movement Swing 35 degrees to both sides
Number of winches 2 units
Wire pull 70 kN 15,736 lbs
Hauling speed 0 – 20 m/min 0 – 66 ft/min
Drive Hydraulic motor
Wire diameter 18 mm 0.7 inches
Swing range at min depth 34.7 m 113.8 ft
Swing range at max depth 29.4 m 96.4 ft

Ladder Hoisting Winch

Type of winch Drum winch
Number of winches 1 unit
Wire pull 70 kN 15,736 lbs
Hauling speed 0 – 20 m/min 0 – 66 ft/min
Drive Hydraulic motor
Wire diameter 18 mm 0.7 inches
Anchor weight 500 kg 1,100 lbs

Dredge Spuds System

Total spud length 17.0 m 55.8 ft
Outer spud diameter 508 mm 20 inches
Total spud weight 3,250 kg 7,166 lbs
Hydraulic cylinder force 150 kN 33,720 lbs
Cylinder stroke 1.5 m 4.9 ft

Fuel System

Fuel type Diesel fuel
Tank capacity 16,000 liters 4,226 gal

Operating Cabin

Total area 4.4 m² 47.4 sq ft
Cooling Ventilation fan (A/C optional)
Lights 2x exterior lights and 2x flood lights
Additional Screen wipers
Instrumentations
  • Dredging depth indicator
  • Discharge pressure gauge
  • Vacuum pressure gauge