ZN dredge pump is new type of single-stage, single suction, cantilever horizontal dredge pump. It is composed of a pump head, reducer gear box, high elastic coupling, and marine transmission monitoring system. With advantages of high efficiency, wear resistant, excellent performance, It is designed for handling more abrasive with solids slurries in the river dredging, sand reclamation, explosive sludge in metal melting, dredging in dredger and course of river and other fields.
| Pump model | ZN250 dredging pump |
| Inlet&Discharge size | 14X10 inch |
| Flow range | 300-1600m3/h |
| Head range | 35-80m |
| Speed range | 490-750rpm |
| Power in max | 560kw |
| Solid handling | 144mm |
● Cantilevered, horizontal, centrifugal, one stage, single casing pump;
● High head, large capacity, high efficiency, good NPSH performance;
● Long bearing life, the bearing assembly with large diameter shaft and short overhang;
● Wear-resistant wet parts, the wet parts are made of Ni hard and high chromium abrasion resistant alloys. (more than 27% Chrome alloy);
● The shaft seals can be gland seal or Lip seal;
● The discharge branch can be positioned at interval of 45 degrees by request and oriented to any eight positions to suit installations and applications.
| Model | 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 | 1800-2200 | 40-65 | 400-550 | 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 | 5000-9000 | 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 |
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 |
