1). Dredger pontoon information

Water flow                                          5000 m3/h

Solid sand capacity                            1000 cbm/h

Max. dredging depth                         15 m

Discharge distance                            1500 m

Average draught                                 1.7m

Dia.discharge/ suction pipe             500/700 mm    20/28inch 

LOA                                                       39m  cutter head length is included

Dredger after assembly                    30*9.2*2.5m   Length* width* depth

Engine room pontoon                      15.4*3.5*2.5m  Length* width* depth  1 pc

Side pontoon                                     24*2.5*2.5m    Length* width* depth  2 pcs

Structure                                            Can be dismantle and assemble at working place

2). Main engine and auxiliary engine information

Two models of diesel engine can be selected on dredger vessel, which as Cummins engine or DEUTZ MAN-MWM engine, there is after-sale services all over the world for Cummins engine, while it has higher requirement on diesel oil and engine oil; NO after-sale service for DEUTZ MAN-MWM engine overseas, which it is easily for maintaining and repairing, spares are cheap can be selected with dredger vessel.

a.      Cummins engine on dredger are as below:

Main engine power&type             895KW/1218HP Cummins engine KTA38-M2; 1set

Auxiliary engine power                 298KW/406HP Cummins engine  NTA855-M; 1set

Total power                                     1193KW/1624HP

b.      or DEUTZ MAN-MWM engine are as below

Main engine power&type      920KW/1251HP MAN-MWM engine TBD620V8, 1set

Auxiliary engine power                 296KW/402HP MAN-MWM engine TBD234V8, 1set

Total power                                     1216KW/1653HP

4). Cutter specifications

  Cutter diameter                      1700mm with replaceable teeth

According to water flow of the dredging pump, we calculate the diameter of the cut head; only the best cutter head diameter can provide the best capacity of the sand.

  Cutter type                            Crown-like

  Cooling system                        Water cooling

  Cutter speed in rpm               10/20/30R/min

  Motor power                           170KW/231HP

  Motor quantity                       3 pc

  Cutter teeth quantity             35pcs

  Cutter teeth material             ZGMn13

  Cutter blade quantity             5 pcs

  Cutter blade material             ZGMn13

Technical specifications for hydraulic winch of 20 inch river dredger  vessel

Hydraulic winch                               100 KN/SET

Hydraulic cutter power                  170 KW

Hydraulic valve                                REXROTH

Controlling system                          PLC Simons

Hydraulic pump                               VICKERS

Diameter spud cylinder                 160 mm

Emergency generator power        24 GF Cummins

Diesel oil consuming/cummins engine/Deutz engine 

Max. oil consumption                  145.96L/H for Cummins engine

Max. oil consumption                  146.316L KW/h for MAN-MWM engine

Oil tank capacity:                          33000L