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Economic indicators:

Provided that the pipe length is 200 m, and the usual geodetic rise is not more than 5 m, this model produces a nominally 40 cubic meters per hour and 400 cubic meters per 10 hours. Sand’s density is 1.3 tonnes per cubic meter, the weight of the extracted sand is 520 tons.
extracting Cost 520 tons of sand will be 600 kWh for 10 hours. Nominal diesel fuel consumption for 10 hours is 600 kW x 0.226 l / kW = 135.6 liters. From this calculation, we conclude that to extract 520 tons of sand necessary to 136.6 liters of diesel fuel. production cost of one ton of sand is 136.6 liters / 520 tons = 0.26 liters per tonne.

General characteristics:

The height of the water column40m
Performance dry residue (nominal)60m³/h
Performance dry residue (max)100m³/h
Power pump for pumping pulp60kW
Length of pipeline (maximum)800m
The depth of the development (maximum)0.4 m
The depth of the development (maximum)8m
Diameter of the solid particles (max)70mm
The diameter of pipeline200mm


The length of the dredger10m
The width of the dredge2.4 m
Overall width with pontoons3.9 m
The height of the dredger3m
weight dredger10ton
internal power supply12m
open food12m
On-board power supply12/24m

Installed equipment:

Engine 130 kW (Marine diesel engine, 226 g / kW)1pcs
GRT-400/40 Pump *1pcs
Active cutter (higher efficiency for light soil)1pcs
The auxiliary pump (ejector) 33 m³ / hour feed at the head of 70 m1pcs
Reversible spindle 35 kW (motor drive dredger)2pcs
Hydraulic motion control1pcs
The hydraulic lifting cylinder for the main suction2pcs
Fixing the dredger in the workplace anchor hydraulic winch3pcs
Cutter actuator (hydraulic motor)1pcs
Fuel tank 500 l1pcs
Batteries (200 A / h)2pcs

The model is more profitable and economical, see here.

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