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This model is discontinued.

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Pump U900/90 for its direct purpose to pump coal slurry, called coal pumps, and is mainly used for hydro-transportation of coal and sludge in mines and concentrators. In addition, the coal mine U900/90 has found its widespread use in quarries, the metallurgical, mining and processing and cement industries, as well as in the transport of other bulk materials.

General characteristics:

Water column height90m
The Production of the dry residue (nominal)135m³/h
The Production of the dry residue (maximum)300m³/h
Power pump for pumping pulp315kW
Pulp transport length (nominal)900m
The depth of the development (minimum)0,4m
The depth of the development (maximum)12m
Diameter solids (max)200mm
Diameter pressurized slurry pipeline250mm
Area of useRiver


The length of the dredger13m
The width of the dredge2.4m
Overall width with pontoons8m
The height of the dredger4m
Weight dredger16ton
Internal supply12V
Outdoor supply12V
Onboard power supply12/24V

Installed Hardware:

Engine 300 kW (specific consumption of diesel fuel 200 g/kWhh)1pcs
Pump U-900/90*1pcs
Active milling cutter (increased productivity for light soil)1pcs
Auxiliary pump (ejector) 33 m/cube per hour feed at a head of 70 m1pcs
Reversible propeller 35 kW (dredger drive drive)2pcs
Hydraulic motion control1pcs
Hydraulic cylinder lifting main suction pipe2pcs
Anchor piles (length 8 meters)2pcs
Fixing of the dredger at the work site of the anchor, hydraulic winches3pcs
The drive of the main pump GRT 800/70 (hydraulic motor)1pcs
Drive of a milling cutter (hydraulic motor)1pcs
Floating slurry pipeline D-200 or 250 mm100m
Auxiliary crane-beam1pcs
Fuel tank 1000 liters1pcs
Technical water tank 500 liters1pcs
The battery (200 А/h)2pcs
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 135 cubic meters per hour or 1,350 cubic meters per 10 hours of operation. The density of sand is 1.3 tons per cubic meter, the weight of extracted sand is 1755 tons.
The extraction costs of 1755 tons of sand will amount to 2,500 kWh in 10 hours. The nominal consumption of diesel fuel for 10 hours of operation is 2,500 kW x 0.200 l/kW = 500 liters. From this calculation, we conclude: To extract 1755 tons of sand, 500 liters of diesel fuel is needed. The cost of mining one ton of sand is 500 liters/1755 tons = 0.285 liters per ton.

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