30m sand suction horizontal underwater booster dredging pump

Submerged underwater horizontal sand dredge pump is used for being mounted on the suction ladder of a cutter suction dredger, the pump will be totally submerged in water during working,
and directly driven by a hydraulic power or diesel engine,
for getting the maximized mixture concentration and maximized
dredge depth.

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Product Description

Product Description

Underwater pump overview:

For cutter suction dredger, it have 2 types dredging pumps usually.

One dredging pump in cabin and one underwater pump on the ladder.

2 pumps working together can have longer discharge distance and deeper dredging capacity.

The total dredging depth can reach over 30m deep, and total discharge distance 2000-4000m.

Model Meaning

ZN500

ZN: Zidong Pump High Efficiency Dredging Pump

500: Discharge size in mm

Pump model	ZN500 dredging pump
Inlet&Discharge size	26X20 inch
Flow range	3800-5500m3/h
Head range	30-70m
Speed range	350-450rpm
Power in max	1500kw
Solid handling	250mm

Underwater pump design Features:

The underwater sand pump is directly improved from the cabin sand pump but working suitable underwater:
1. Compared with the horizontal cabin sand pump, the underwater pump can increase the suction depth

and increase the output.
2. Compared with vertical sand pumps, underwater pumps can withstand greater pressure.
3. Light bracket with water proof oil seal design to work suitable underwater.

Zidong underwater pump design advantages:

1. Superior 3D design technology

2. The robust and functional design

3. The front liner and impeller is specially designed, it is easy for maintenance.

4. It prolong the lifetime of these wet parts, and saved more costs.

Specification:

Model	ZN dredging pump performance table
	Capacity	Head	Speed	Efficiency	NPSH	Outlet/Inlet Diameter	Max Particles Size
	(m3/h)	H(m)	n(r/min)	η(%)	(m)	(mm)	(mm)
ZN250	300-1600	35-80	490-750	70-74	4	250/350	144
ZN300	1800-3000	40-65	425-550	74-78	4	300/450	241
ZN350	2600-3000	40-65	400-550	74-78	4.5	350/450	205
ZN400	2800-3200	20-40	400-550	74-78	4.5	400/450	200
ZN450	3200-3850	40-67	350-500	76-80	4.5	450/600	254
ZN500	4500-5500	40-65	350-450	78-80	4.8	500/650	250
ZN600	5000-9500	55-80	280-420	84-85	6	600/660	280
ZN700	8000-12000	60-85	280-380	83-85	6	700/760	300
ZN800	10000-15000	60-70	260-360	79-80	6	800/850	320
ZN900	12000-19000	50-75	280-330	85-87	6	900/960	340
ZN1000	16000-25000	23-76	181-290	85-87	6	1000/1200	350

Application:

Zidong high efficiency horizontal dredge pump are designed for heavy duty applications such as mining, power sector, dredging river, and tailings as well as specialty applications, which are used for continuous pumping of high abrasive, high density sand and gravels.

Mineral Processing	Power Generation	Aggregate
Ash Handling	Flue Gas Desulfurization	Thickener & Tailings
Mine Dewatering	Industrial Slurries	Dredge

Zidong ZN500 underwater sand dredging pump in oversea site: