Wednesday 30 August 2023

Hydraulic winches for dredging

Hydraulic winches

Winches play an important role in dredging operations by providing the necessary pulling force to move the dredging equipment and dredged materials. The winches used for hosting in dredging are typically heavy-duty electric or hydraulic winches, which are designed to withstand the harsh operating conditions in the marine environment. These winches are mounted on the dredging vessel and can be used to control the positioning and movement of the dredging equipment, such as the suction tube, cutter head, and spud poles. Proper maintenance and monitoring of winches is crucial for safe and efficient dredging operations.

Side winches are devices used in dredging to control the position and movement of a dredging vessel. They are mounted on the sides of the vessel and are used to control the position of the suction head or cutter head by adjusting the length and tension of the cables or wires attached to it. This allows the dredge to excavate material from a specific location and to move the material to another location for disposal or further processing. Side winches are an essential component of many types of dredging vessels, including trailing suction hopper dredgers and cutter suction dredgers

We offer a wide range of standard winches till 120 kN side wire and hoisting winches that ensure efficient dredging. Also boom winches are on a fast delivery!

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Tuesday 22 August 2023

Dredge suction and discharge hose

Dredge suction and discharge hoses

A dredge hose is an essential component of a dredging system that is used for transporting sediment, slurry, or other materials from the dredger to the shore or another location. Dredge hoses are typically made of high-quality materials that can withstand the harsh conditions of dredging operations, such as abrasion, corrosion, and high pressure.

If you are in need of a suction or a discharge dredging hose, it's important to choose a high-quality product that is both durable and efficient. We deliver European best quality dredger hoses at a competitive price and fast delivery. This could be a good option for those looking for a reliable and affordable dredge hose.

When choosing a dredge hose supplier, it's also important to consider factors such as the supplier's experience and reputation, their customer service, and their ability to provide customized solutions to meet your specific needs. It's also important to make sure that the supplier can provide the necessary documentation and certifications to ensure that their products meet the required standards and regulations.

In summary, if you are in need of a dredge hose, it's important to choose a reliable and high-quality supplier that can provide you with the right product at a competitive price and with fast delivery. Be sure to consider all of the important factors when making your choice, and don't hesitate to ask for recommendations or additional information to help you make an informed decision.

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Monday 14 August 2023

HDPE dredge pipe

HDPE Discharge Pipe for Transporting Sediment.

HDPE (high-density polyethylene) dredge pipes are commonly used in dredging projects to transport sediment, slurry, and other materials. These pipes are known for their durability, flexibility, and resistance to corrosion and abrasion, which make them ideal for use in harsh environments.

In terms of specifications, HDPE dredge pipes are available in various diameters and lengths, with pressure levels ranging from PN3.2 to PN25. The PN rating refers to the maximum pressure the pipe can handle, with PN25 being the highest. Additionally, the pipes can come with different types of welding tube ends, depending on the requirements of the project.

If you require steel tube ends for the HDPE pipes, it is possible to supply them in PN16 or PN10 dimensions. This can provide additional strength and durability to the pipe connections, which is important in dredging projects where the pipes are subject to heavy loads and pressures.

Overall, HDPE dredge pipes are a reliable and versatile choice for dredging projects, and the ability to customize the pipes to specific project requirements makes them an attractive option for many applications.

Also FLOATERS are a vital component for HDPE pipes, especially in applications such as dredging. These specialized devices are designed to provide buoyancy and support to the HDPE pipes, allowing them to float effortlessly on water surfaces. By incorporating floaters into the pipeline system, the pipes are kept stable and prevent any undesirable sinking or displacement.To learn more about the importance of floaters in HDPE pipe applications, you can visit our page on Floaters.


The SDR (Standard Dimensional Ratio) is a commonly used term in the context of HDPE pipes, especially in dredging applications. It defines the geometric characteristics of the pipes by indicating the ratio between the nominal outside diameter and the nominal wall thickness. The table below provides specific information about the SDR 21 type, which is frequently utilized in dredging projects.

Nominal Size
DN (mm) OD
Wall (mm)
Average ID
20 0.79 1.0 17.98 0.06
25 0.98 1.2 22.48 0.09
32 1.26 1.5 28.77 0.15
40 1.57 2.0 35.76 0.25
50 1.97 2.4 44.91 0.38
63 2.48 3.0 56.64 0.60
75 2.95 3.6 67.37 0.85
90 3.54 4.3 80.88 1.23
110 4.33 5.3 98.76 1.85
125 4.92 6.0 112.28 2.37
140 5.51 6.7 125.80 2.97
160 6.3 7.7 143.68 3.90
180 7.09 8.6 161.77 4.90
200 7.87 9.6 179.65 6.08
225 8.86 10.8 202.10 7.69
250 9.84 11.9 224.77 9.42
280 11.02 13.4 251.59 11.88
315 12.4 15.0 283.20 14.96
355 13.98 16.9 319.17 19.00
400 15.75 19.1 359.51 24.19
450 17.72 21.5 404.42 30.63
500 19.69 23.9 449.33 37.84
560 22.05 26.7 503.40 47.35
630 24.8 30.0 566.40 59.85
710 27.95 33.9 638.13 76.21
800 31.5 38.1 719.23 96.52
900 35.43 42.9 809.05 122.26
1000 39.37 47.7 898.88 151.04
1200 47.24 57.2 1078.74 217.35
1400 55.12 66.7 1258.60 295.70


Information for transporting each type of HDPE pipes, where we advise the totale lentgh of 11.50 mtr:


Nominal Size
DN (mm) OD
Trailer Container BOX Container HQ
180 100    
200 72    
225 72    
250 42 36  
280 42    
315 36    
355 30    
400 25 16 19
450 20 16 16
500 16 12 14
260 11 9  
630 11 9  


Please note that the information provided may vary depending on the specific manufacturer or supplier of the HDPE pipes. It's always recommended to consult with the manufacturer or transportation experts to ensure the appropriate transportation method for your specific requirements.

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Sunday 6 August 2023

Floaters for dredging pipeline

Floaters for dredge pipeline

Floaters are an essential component of dredging pipelines, especially for those used in the dredging industry. These pipeline floaters are designed to help support the pipeline and keep it afloat, which is important for maintaining the pipeline's stability and preventing damage to the surrounding environment.

Our floaters are made from rotomoulded polyethylene, which is a durable and reliable material that can withstand harsh marine environments. They are available in different sizes to suit the specific needs of different dredging operations and can be used with both steel and HDPE pipelines.

When selecting floaters for your dredging pipeline, it's important to consider the weight of the pipeline, the type of sediment being pumped, and the depth of the water. These factors will help determine the appropriate size and quantity of floaters needed to ensure the pipeline remains stable and secure.

Our floaters are made in Europe with high-quality materials and affordable prices, which can help reduce the overall cost of dredging operations. By investing in high-quality floaters, you can improve the safety and efficiency of your dredging operations and ensure that your pipeline remains secure and stable, even in challenging conditions.

Information for transporting each type of floaters:

XS 224 480 Width
S 126 270 Width
M 91 195 Width
L 36 51 Length
XL 30 66 Length
XXL 18 36 Length
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Saturday 5 August 2023

Explanation of Sludge dewatering by means of Geotube

Integrated Sludge Dewatering Using Geotextile Tubes: A Step-by-Step Explanation

Sludge management is a critical aspect of wastewater treatment, and innovative methods like geotextile tubes provide efficient and environmentally friendly solutions. Here's a step-by-step breakdown of the integrated process, showcasing its benefits and applications:

**Step 1: Filling and Polymer Addition**
Sludge, often in the form of dredged material, is first pumped into the tube container. To initiate the dewatering process, environmentally-safe polymers are introduced to the sludge. These polymers act as binding agents, causing the solid particles to agglomerate while water separates. The container's specialized fabric plays a crucial role by containing even the finest material grains, preventing their escape.

**Step 2: Effective Dewatering**
As the sludge settles within the tube container, the process of dewatering begins. The container's engineered textile features small pores that allow clear effluent water to drain out. This controlled drainage results in highly efficient dewatering, effectively reducing the volume of the contained material. This volume reduction is a key advantage, enabling the tube container to be refilled multiple times. Remarkably, over 99% of solid particles are captured during this stage, while the clear filtrate, enriched by the separation, can be collected and reintroduced into the system. This water often meets quality standards suitable for reuse in processing or for direct return to native waterways.

**Step 3: Consolidation and Volume Reduction**
Upon completing the filling and dewatering cycles, the solid materials within the geotextile tube undergo a consolidation phase. Remaining within the container, these solids continue to densify over time as residual water vapor escapes through the fabric. This desiccation process can lead to a remarkable volume reduction, potentially reaching up to 90%. This reduction in volume contributes to efficient storage and management of the dewatered material.

**Final Steps and Considerations**
Once the tube container reaches its capacity or the dewatering process is complete, several options become available. The container, along with its consolidated contents, can be deposited in a landfill, left on-site for temporary storage, or, if appropriate, the dewatered solids can be extracted and utilized as land-applied materials. This versatile approach allows for adaptability based on specific requirements and environmental considerations.

Incorporating geotextile tubes into sludge management practices presents a sustainable solution that addresses volume reduction, solid-liquid separation, and resource recovery. By efficiently capturing solids and producing reusable filtrate, this integrated process aligns with both environmental stewardship and cost-effective sludge handling.

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