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Cutter is a cutting tool for cutter suction dredger to cut underwater soil. Driven by the prime mover, it rotates to cut the soil layer and causes the soil layer separated by cutting to be deformed, broken, and mixed with water to form a slurry, which is fed into dredge pump by the suction port in cutter cavity.

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On navigable rivers, vessels frequent traffic, or there are large wind waves on the approach channel of the seaport and estuary port. if the construction area has enough water depth, there are waters at both ends for the dredger to turn head and throw mud (or conditions for blowing to land), can choose a self-propelled trailing suction hopper dredger.

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Large projects can be divided into several construction sections with different construction conditions, and they need both excavation and filling, according to the characteristics of the above construction composition, choose the appropriate combination of construction, such as approach channel select self-propelled trailing suction hopper dredger, excavation, blowing and towing combination is selected for the wharf foundation trench.

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Dredge pump is the main machine used by large cutter suction dredger in dredging engineering, It plays an important role in dredging engineering. and its performance directly affects the efficiency of the dredging project.

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The cutter suction dredger is one of the most widely used dredger types in dredging projects because of its wide range of soil adaptation and the ability to complete the excavation, transportation, and filling processes in one time. With the application of cutter suction dredger, various methods to increase the efficiency of cutter suction dredger have been found in practice.

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The dredger is a device designed for excavation and also scraping of the sea bed. The best marine vessel is fitted with a device to suck or scrap the sediment deposition over the complete sea bed. Readers of testimonials from clients of the dredger manufacturers can find and keep up-to-date with the dredger manufacturing facilities in our time.

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The sand dredger is used to remove the slit deposits or sand from the sea bed. The sand dredger has a vertical suction pipe that is pushed vertically within a sand deposit and also the dredged material is drawn with or without the water jet.

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Early warning fire-fighting equipment In the key parts of the ship according to the environment to install temperature or smoke detector, sound-light alarm device, such as the ship engine room, fixed carbon dioxide room, paint room, oil distributor room, battery room, kitchen, accommodation, etc. Manual alarm devices should be installed in all parts of the

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Excavate hard clay. Hard clay moisture content is low, cohesive force is large, the cutter rotation is clockwise, in the right transverse movement is easy to produce “hob” phenomenon, in addition to appropriate control of the left anchor mechanism dynamic pressure, but also to reduce the cutter speed, transverse speed, reduce the forward distance, and thin slice cutting.

[chinadredging]

Excavate hard clay. Hard clay moisture content is low, cohesive force is large, the cutter rotation is clockwise, in the right transverse movement is easy to produce "hob" phenomenon, in addition to appropriate control of the left anchor mechanism dynamic pressure, but also to reduce the cutter speed, transverse speed, reduce the forward distance

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Influence of short discharge distance construction on the dredge pump device As we know, the design flow and design pressure of the single-speed dredge pump on the cutter suction dredger usually correspond to the characteristics of the pipeline under the design condition, that is, the rated discharge distance and height of the pipeline. At this

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Selecting dredger appropriately according to construction conditions is an important prerequisite for organizing dredger construction and dredging. If the dredger is not chosen properly, it will not only increase the cost of dredging but also may damage the dredger and even fail to complete the task. There are two basic principles to choose a dredger: first,

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Technical requirements for environmental dredging

Environmental dredging aims at removing polluted bottom mud in water bodies such as oceans, lakes, and rivers, strictly controlling the precision of dredging, focusing on preventing the re-diffusion of polluted bottom mud in the dredging process and the leakage of polluted bottom mud in the transportation process.

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Technical requirements for environmental dredging

Environmental dredging aims at removing polluted bottom mud in water bodies such as oceans, lakes, and rivers, strictly controlling the precision of dredging, focusing on preventing the re-diffusion of polluted bottom mud in the dredging process and the leakage of polluted bottom mud in the transportation process.

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Cutter suction dredger of dredging characteristics

Cutter suction dredger is one of the most common and widely used hydraulic dredgers in recent years, which can complete dredging processes such as digging, conveying, discharging, and processing mud at one time, with continuous operation, high production efficiency, and low cost. It is not only suitable for mud conveying with short discharge distance (generally within 1.5km) but also suitable for dredging projects with more than the rated discharge distance.

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The leakage of dredger hydraulic system usually has the following reasons:

Design reasons for the leakage of dredger hydraulic system

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Hansel Marine is a Chinese leading manufacturer and contractor with the genes for both dredging and shipbuilding. The beginning of the company is a Chinese domestic dredging engineering company established in early of this century. Our staffs have long experience working in dredgers from world first-class manufacturer, such as IHC.