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  • dredger working

Causes of high bearing temperature of dredger

August 5th, 2022|

In recent years, dredgers have made considerable and steady development in dredging and dredging fields such as lake and river regulation. We often encounter various failure problems in the construction process. Today, let's introduce the reasons for the high bearing temperature of dredgers: the amount of lubricating oil is [...]

  • Trailing suction dredger

Classification of dredgers

July 21st, 2022|

Dredgers are mainly used for river dredging, sand dredging, land reclamation, road construction, etc., and they shine with the promotion of the ecological civilization construction. Classification of dredgers: cutter suction dredgers, trailing suction hopper dredgers, bucket wheel dredgers, chain bucket dredgers and bucket dredgers. Cutter suction dredger: Cutter [...]

  • CSDbanner

Cutter suction dredger construction foundation

July 5th, 2022|

1.The maximum digging width of the steel pile dredger: the maximum digging width is limited by the length of the ship, generally, it is the total horizontal length of the ship during the construction (please remember that the vertical distance between the steel pile and the cutter head [...]

  • HS55CSD

Development trend of the CSDs

June 20th, 2022|

Since the first CSD was born in the US in 1884, after 100-year development, the CSD has become the largest ship type in the dredger kingdom. At present, the CSDs are widely used in dredging constructions and land reclamation projects in ports and channels. With the rapid development of [...]

  • 12inchCSD

History of the World Dredging Industry

May 10th, 2022|

With the continuous development of science and technology, dredging equipment and technology have been developed rapidly in the past hundred years, which can roughly be divided into three stages. The invention of the steam engine by Watt in Englandattheendof the 18th century triggered the industrial revolution in Europe and [...]

  • HANSEL 22 inch CSD

Preparation before dredging construction

March 28th, 2022|

Before dredging, we should first carry out a soil survey and understand the local hydrological and meteorological conditions. And we should also apply the theory of dredging and mud transportation, which mainly includes the setting of reamer excavation parameters and the matching of key parameters of centrifugal pump, mud pump, [...]

  • cutter teeth 2

The dredging cutter teeth

March 14th, 2022|

The dredging cutter teeth, because of different dredging forms, can be divided into four categories: reamer cutter teeth, bucket-wheel cutter, knife flywheel cutter teeth, and environment-friendly cutter teeth. Among them, reamer cutter tooth and bucket wheel cutter tooth are the most common, while knife flywheel cutter tooth is more [...]

  • hansel cutter dredger

The significance of soil exploration in the dredging process

March 7th, 2022|

To choose proper dredgers and reasonably arrange the construction, it is necessary to confirm the soil quality and classify them, which is the main evidence of confirming production efficiency and calculating the cost. So, at the beginning of dredging, we should have a deep exploration of the soil. And the [...]

  • HANSEL 22 inch CSD 4

What is dredging?

February 22nd, 2022|

Dredging is referring to those engineering measures using dredger equipment to excavate those underwater soil and stones to increase the depth of water and remove the silt, which is a significant part of hydraulic engineering and transportation. Now it is used in constructing and maintaining the channel and port, land [...]

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  • screw connection-2

Advantages and Characteristics of HANSEL Cutter Suction Dredger (Epi 1)

June 9th, 2020|

Hansel Marine is a leading Chinese manufacturer of Cutter Suction Dredger (CSD). Distinguished from some other Chinese manufacturers, HANSEL is a shipyard with rich experiences in building kinds of marine vessels, which makes HANSEL very familiar and adaptable to the shipbuilding standard, rules, and regulations. Cutter Suction Dredger characteristics and [...]