Applications

Our dredgers are used in several applications

Our dredgers are designed to excavate and transport soil materials of different densities from fine sand and clay to gravel. In addition to this, we offer to customize dredgers for your specific project needs. Therefore, we can offer dredgers suitable for a variety of applications, such as:

  • Maintenance dredging –  removal of sediments from existing riverbeds, channels, etc. in order to maintain an appropriate water depth. As a result, gateways are kept open for safe navigation and flood control.
  • Capital dredging – the creation of new ports, an extension of harbors, basins, marinas, etc. as needed to maintain successful trade and economy.
  • Environmental dredging – improvement of the environment by removing contaminated soils through precise, low turbidity dredging, in order to not spread the contaminants.

See all information about our dredging equipment and its applications in one place:

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Applications

River Dredging and Deepening

Dredge Yard environmental dredging landscape

River dredging is a form of river restoration and river maintenance. Over time, sand, silt and debris (branches, logs, waste) flow downstream. This is a natural phenomenon, which happens due to weathering, erosion and rivers carrying sediments. If not maintained, the materials accumulate and create a blockage. Consequently, this restricts natural river flow and makes the waters very shallow. As a result, rivers become inaccessible to larger ships. Additionally, during heavy rain season, restricted river flow can cause flooding. Flooding may result in major property damage, have negative impact on local businesses, and even be life threatening.

River dredging is therefore necessary to maintain natural river flow and appropriate water depth to minimize risk of potential disasters.

River Dredging Equipment

Dredging equipment for river dredging can include auger dredgers and cutter suction dredgers depending on the conditions on site. Some of the factors to consider are river currents, water depth and materials to be dredged. In addition to different dredger types and sizes, we offer dredging equipment customization (e.g. increasing swing length, extending dredging depth) according to project requirements.

Our standard dredger series includes one truck transportable  Cutter Suction Dredgers and one container transportable Auger Dredgers. Compact cutter suction dredgers and auger dredgers design allow for easy and economical dredger transport to the project site. In addition to this, the dredger can be easily removed from water and stored for later use.

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Settling Pond Dredging

Settling pond cleaning & dredging landscape

Pond dredging and cleaning is a type of maintenance dredging. Over time, settling ponds, holding ponds and lagoons at industrial plants may accumulate sludge, silt and sediments. Consequently, accumulated materials reduce effectiveness and water storage capacity of the settling ponds. As a result, productivity and efficiency of the industrial plant is reduced. Regular pond dredging projects can ensure ongoing efficiency of the business.

Pond Dredging Equipment

Pond dredging may involve petrochemical sludge, fly ash pond (produced by burning coal) or desliming ponds in mining operations. Dredging of a pond can be performed using cutter suction dredgers when the materials have settled over a longer period of time and have become compact. For loser materials or contaminants, Auger dredger 200 can perform precise, low turbidity dredging. Both types of dredgers are compact, and can be easily transported and operated in remote locations and ponds of varying sizes.

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Reservoir, Lake and Dam Dredging

lake & reservoir dredging

Reservoir dredging, lake dredging and dam dredging is used to restore these water sources to their full capacities. Throughout the years, hydro-power dams, reservoirs and freshwater lakes retain and accumulate quantities of sandy deposits in or behind them. As a result, sediments diminish the total water reserve capacity of the plant. This is called sedimentation. If not maintained, sediments can reach the water outlets and thus, cause severe wear damage to the turbines. Therefore, regular dredging is required.

Reservoir dredging equipment

Type of dredging equipment used for reservoir dredging, lake dredging and dam dredging depends on a variety of factors on site. Namely, water depth, accessibility and type of material, play an important role in the decision making process. Sediments in lakes and reservoirs mainly consist of clay, silt and varied sizes of sand. It can also contain chemical precipitates, organic debris and often, combinations of these. Therefore, it is vital to analyze project location and requirements before selecting the type of dredger for the project.

Our standard dredger series includes one truck transportable Cutter Suction Dredgers and one container transportable Auger Dredgers. Compact ECO dredger design allows for easy and economic dredger transport to project site. In addition to this, the dredger can be easily removed from water and stored for later use.

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Water Intake Dredging

water intake cleaning & dredging landscape

Water intake dredging is used to retain cooling capacity and overall efficiency of industrial plants. Large industrial plants such as petrochemical plants, power plants and desalination plants use water intake channels for cooling purposes. These water intakes are commonly connected to lakes, rivers, canals or the open sea. Due to factors such as weathering and erosion, sediments are carried and deposited in the mentioned water bodies. Therefore, in order to avoid their entering the industrial plant, water intakes are equipped with sand traps or screens.

However, over time, sediments can accumulate at the trap. As a consequence, less water can enter the industrial plant, which limits its cooling capacity and results in reduced overall efficiency. Therefore, regular maintenance dredging is needed to keep the water basins clean and the capacity of the industrial plant at its maximum.

Water Intake Dredging Equipment

Water intakes can often be difficult to access and may require precise dredging. Auger dredger 200 is a small dredger, ideal for cleaning freshly accumulated sediments in a precise manner. On the other hand, a cutter suction dredger is more suitable in the cases when sediments have accumulated over a longer period of time and have become compact. Both types of dredgers feature a compact design, making them easy to transport, launch and store for later use.

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Mine Tailing Removal and Dredging

Dredge Yard mine tailing removal dredging landscape

Mine tailing dredging is used for cleaning up tailing ponds, removing leftover chemicals or capturing leftover valuables. Mine tailings consist of crushed, finely ground rock and waste products from mineral processing operations in mining. Due to chemical components, storage and handling of tailings has become a major environmental issue worldwide. Therefore, mine tailing dredging provides an efficient solution to clean up mine tailings ponds, especially when tailings contain dangerous contaminants.

Mine Tailing Dredging Equipment

Mine tailing dredging equipment depends on the nature of the materials to be dredged. When mine tailings contain leftover chemicals, they must be dredged and disposed of with precision. Therefore, in this case, Auger dredger 200, which can accurately remove thin layers of sediments may be a suitable tool for the dredging project. However, if more power is required due to more compact, harder materials, cutter suction dredgers are a more appropriate equipment choice.

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Environmental Dredging

Environmental dredging describes clean up projects aimed at improving the environment. Rivers, lakes, lagoons and major industrial ports and harbors are often confronted with severe environmental problems of contaminated soils. Contaminants in water endanger both marine and human life, as well as the surrounding environment. Therefore, they need to be removed in a controlled manner minimizing the spreading of the pollutant into the surroundings. After environmental dredging of contaminated soils, they are pumped ashore for further processing, dewatering, storage or disposal.

Our dredgers are the equipment of choice to dredge polluted soils. The submerged dredge pump in combination with the auger excavating tools provide efficient dredging performance avoiding dispersion of pollutants. Additionally, we designed the Auger Head, with environmental protection and high efficiency in mind.

Environmental Dredging Equipment

Environmental dredging requires precise dredging with low turbidity to avoid the spread of contaminants. Auger Dredger 200 features a submerged dredge pump and auger excavating tools, which provide efficient dredging performance. In addition to this, the auger dredger is precise in removing thin layers of sediment, causing minimal to no turbidity.

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Canal and Channel Dredging

canal & channel dredging

Canal dredging and channel dredging are important to maintain efficient navigation, irrigation, power sources, commerce and businesses running smoothly around the world. Similarly to rivers, sediment and debris can gather in the bottom of these water sources. As a result, waterways become shallow, which can disturb traffic and other vital activities, if not maintained through dredging.

Canal and Channel Dredging Equipment

Both cutter suction dredgers and auger dredgers can be used for canal dredging and channel dredging, depending on the conditions on site. For example, Auger dredger 200 is an effective tool, when precise dredging is required. It can remove sediment layers in a controlled manner to restore an even water bed. On the other hand, cutter suction dredgers can be used for canal dredging with compact and hard materials.

Our dredgers are compact – one truck and one container transportable. The compact design allows for efficient operation on remote project sites, as well as narrow canals and channels. Additionally, we offer to customize dredging equipment according to the specific canal and channel dredging project requirements. As an example, customization can include extension of dredging depth or an increase in cutting power.

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Marina and Harbor Dredging

marina & harbour dredging

Marina and harbor dredging is necessary to make sure that they provide safe navigation and access at all times. Ocean currents carry silt, sand and sediments, which often accumulate in marinas and harbors. This makes the waters shallow and causes disruption of waterway traffic and navigation. Marinas and harbors must be dredged regularly, though regularity depends on the location and other circumstances, such as currents on site.

Marina and Harbor Dredging Equipment

Our dredgers are compact size, easily transportable and maneuverable in small areas. Therefore, maintenance dredging can be performed without causing much disruption to marina and harbor operations. Auger dredgers are ideal for regular maintenance dredging of newly accumulated sediments, while cutter suction dredgers offer more power for dredging compact, harder materials. After use, both dredger types can be easily removed from water and stored until needed for maintenance dredging again. Therefore, in the long term, purchasing a dredger for regular maintenance is an economical and practical solution.

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