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Dredger DRW-400/20D

10 ”CSD (Cutter Siction Dredger) DRW-800 / 40D dredger is also designed for mining sand and ore. A very economical dredger with high productivity.

Economic indicators:

Provided that the pipeline length is 200 m and the usual geodetic lift does not exceed 5 m, this model nominally produces 120 cubic meters per hour or 1200 m³ in 10 hours of operation. Sand density is 1.3 tons per cubic meter, the weight of extracted sand is 1560 tons.
The cost of production of 1,560 tons of sand will be 1600 kWh in 10 hours. The nominal consumption of diesel fuel for 10 hours of operation is 1600 kW x 0.200 l / kW = 320 liters. From this calculation, we conclude: To extract 1,560 tons of sand, 320 liters of diesel fuel are needed. The cost of extracting one ton of sand is 320 liters / 1600 tons = 0.200 liters per ton.

General characteristics:

The height of the water column20m
Performance dry residue (nominal)120m³/h
Performance dry residue (max)240m³/h
Power pump for pumping pulp110kW
Main engine150kW
Length of pipeline (maximum)200m
The depth of the development (maximum)0.4m
The depth of the development (maximum)10m
Diameter of the solid particles (max)120mm
The diameter of pipeline225/250mm


The width of the dredge43557m
Overall width with pontoons43560m
The height of the dredger4m
weight dredger18t
On-board power supply12/24Volts

Installed equipment:

Main Pump GRT-800/20 *1pc
Active cutter (higher efficiency for light soil)1pc
The auxiliary pump (ejector) 33 m³ / hour feed at the head of 70 m1pc
Reversible spindle 35 kW (motor drive dredger)2pc
Hydraulic motion control1pc
The hydraulic lifting cylinder for the main suction2pc
Fixing the dredger in the workplace anchor hydraulic winch3pc
Driving the main pump GRT 800/70 (hydraulic motor)1pc
Cutter actuator (hydraulic motor)1pc
Fuel tank 1000 liters1pc
Technical water tank 500 liters1pc
Batteries (200 A / h)2pc

Cost and terms of delivery:

Cost EXW, from$77.000
Production time2 months
Prepayment 70%
Final payment upon completion of construction30%

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