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This model is discontinued.

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The DRW-400 dredger and the GrAT-400/40 pump is designed for use in mining and processing plants and mining and metallurgical plants, thermal power plants, cement plants, diamond mining and gold mining enterprises, technological lines for crushing, mineral processing and similar industries.

Economic indicators:

Provided that the length of the pipeline is 200 meters and the conventional geodetic lift is not more than 5 meters, this model nominally produces 60 m3/h or 600 m3 per 10 hours of operation. With a sand density of 1.4 tons per m3, the weight of the extracted sand will be 840 tons.
The energy consumption for extraction of 840 tons of sand will be 600 kWh per 10 hours. Nominal consumption of diesel fuel for 10 hours of operation 600 kWh x 0,210 l / kWh = 126 liters. From this calculation we conclude: To extract 840 tons of sand, should be used 126 liters of diesel fuel is needed. Fuel costs per ton of production of sand is 126 liters / 840 tons = 0.150 liters per ton.

General characteristics:

Water column height40m
The Production of the dry residue (nominal)60m³/h
The Production of the dry residue (maximum)100m³/h
Power pump for pumping pulp95kW
Propulsion engine130kW 
Pulp transport length (nominal)400m
Pulp transport length (maximum)1000m
The depth of the development (minimum)0,4m
The depth of the development (maximum)8m
Diameter solids (maximum)70mm
Diameter pressurized slurry pipeline200mm


The length of the dredger10m
The width of the dredge2.35m
Overall width with pontoons4.35m
The height of the dredger3m
Weight dredger6ton
Onboard power supply12/24V

Pantoons (performance polyethylene thickness 9 mm, filled with foam. Warranty period of operation 40 years). Approved by the Shipping Register of Ukraine

Installed Hardware:

Engine 130 kW (Weifang Marine Engine)1pcs
Pump GrAT-400/401pcs
Auxiliary pump (ejector) 90 m3/hour feed at a head of 40 m1pcs
Hydraulic cylinder lifting main suction pipe2pcs
Hydromonitor (6 jets)1pcs
Fixing of the dredger at the work site of the anchor, hydraulic winches3pcs
Propeller for moving the dredger (forward and backward, 35 kW)1pcs
Fuel tank 1000 liters1pcs
Spotlight (LED)6pcs
Control room1pcs
Machine room1pcs
Repair tools1pcs
Kit communication devices (2 walkie talkie)1pcs
Boat for crew1pcs
The battery (100 А/h)2pcs
Pipeline 12 meters of onshore slurry pipeline D200 mm pcs
Float without foam pcs

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