Comparison of Cutter Suction Pump and Dredger
Cutter suction pump Function:
The cutter suction pump is mounted to the amphibious excavator. The cutters stir and break the soil and the hydraulic pump sucks the sand/mud out of the water and conveys it to appointed area by pipeline. It is widely used for dredging construction projects with short-distance conveying requirement like river course, municipal engineering, and other city area projects.
Dredger Function:
The soil under the water is stirred and broken by rotation of the cutters, and the hydraulic dredge pump sucks the sand/mud out of the water and blow it over to up to more than 1 km distance. It is widely used for dredging construction projects with long-distance conveying requirement like dredging in channels, lakes, and rivers, etc.
Cutter Suction Pump & Dredger Comparison Table:
| Item | Dredging Cutter Suction Pump |
| Working principle | Equipped to amphibious excavator;
The cutters stir and break the soil and the hydraulic pump sucks the sand/mud out of the water and conveys it to appointed area. |
| Conveying distance | 400m |
| Comprehensive flow | 400 cubic meter |
| Concentration (solid content ratio) | 25-35% |
| Working depth | 0.5-4m or even 0.3m, walkable in mud/silt |
| Machinery transportation cost | Low |
| Applied construction site | River course, municipal engineering, short-distance conveying requirement |
How does Dredger Works ?
| Item | Dredger |
| Working principle | The soil under the water is stirred and broken by rotation of the cutters, and the dredging pump sucks the sand/mud out of the water and blow it over to up to more than 1 km distance. |
| Conveying distance | 1.5km |
| Comprehensive flow | 1200 cubic meter |
| Concentration (solid content ratio) | 10-15% |
| Working depth | Over 1.5m |
| Machinery transportation cost | High |
| Applied construction site | Channel, lake, river, long-distance conveying requirement |