Choosing suitable dredging machinery is crucial when carrying out sand mining or river dredging. This article introduces OCEAN dredging products and their characteristics, and provides practical cases to provide reference for customer selection. Understanding the performance and characteristics of different machinery can help ensure the smooth progress of dredging work. Through the practical cases provided in this article, readers will be able to make wise decisions in the selection process to meet the specific needs of sand and gravel mining or river dredging.

1. What dredge machinery products does OCEAN Pump mainly provide?

OCEAN Pump specializes in designing and manufacturing efficient and reliable dredging products. Their products mainly include dredge pumps, pump dredgers, pipes and relative accessories.  These machinery products are designed to effectively remove sediment, silt, and debris from rivers, lakes, ports, and other water bodies. OCEAN Pump’s equipment is known for its high performance, durability, and versatility, making it the preferred choice for river sand dredging projects.

2. Should river sand dredging projects start with a pump unit or a dredger?

2.1 Dredge pump vs sand dredger.

A dredge pump is a crucial component of a sand dredging operation. It is designed specifically to extract and transport sediment, silt, and other materials from the water body. The dredge pump is typically mounted on a floating platform or connected to a suction arm, allowing it to reach and suction material from the bottom of the water body. The extracted material is then pumped through pipelines to a designated discharge area.

On the other hand, a whole set sand dredger refers to a complete system that includes not only the dredge pump but also other essential components. This includes a hull or vessel, a power source, a dredging mechanism (such as a cutter suction head), and auxiliary equipment like spuds, anchors, and pipelines. The sand dredger operates by using the dredge pump in conjunction with these components to excavate, transport, and deposit the dredged material.

While a dredge pump is primarily responsible for suction and pumping, a whole set sand dredger provides a more comprehensive solution for sand dredging projects. It offers greater versatility and efficiency as it combines various functionalities into a single system. The sand dredger can handle larger volumes of material, navigate and position itself in the water body, and perform more complex dredging tasks such as cutting through compacted sediment.

2.2 How to make a choice?

Regular users, based on their experience, have established their own equipment procurement and maintenance plans, and typically don’t raise this question. However, new clients often encounter limited budgets in the initial stages of their projects. Some may consider starting with a basic pump unit, placing the sand pump on the shore, and manually operating the sand suction head. However, this method has drawbacks such as low efficiency, a restricted operating range, and unsuitability for deep and wide river work areas.

Therefore, opting for a suitable sand pump dredger equipment is a more efficient approach for larger river sand pumping projects. This allows for effective work execution and swift sand recovery, ensuring optimal project outcomes.

3. What’s the most popular sand dredger model in the Africa?

The jet suction dredger is the most popular dredge machinery made by OCEAN Pump. The working principle of the jet suction dredger is to use high pressure water pump to provide high pressure water, flush the sediment through the high-pressure water gun. After high flow of water, the deposited sediment is flushed with water. We use sand pump, slurry pump, gravel pump sucks the sand and water out, then delivery to destination by sand discharge pipes and sand dredger floaters. This kind of dredge machinery plays an important role in the river machine silt, port dredging, coastal sea reclamation, sand pumping and filling project.

4. Successful case:

One of our Ghana customer wanted to order a dredge machinery to suck the fine sand from  small river. There were no big stones or gravels in the river. The dredging depth was around 5-10 meters, and they required 100 m 3 sand per hour, the discharge distance was 500-800 meters. According to these data, we chose a dredge machinery specification for customer. We recommended OCEAN PUMP 200 PNS -30 high efficiency wear resistant marine sand pump to be equipped into the sand suction dredger, the sand pump was driven by Yuchai 162 KW diesel engine. As the dredging depth was not very deep, we chose manual hoist instead of electric winch to lift the sand suction rubber hose in front of the dredge machinery. The high pressure water pump and anchor winch were both driven by diesel engine. With this way, the whole river dredging system no need to use the generator set, it was not only retains the use of function, but also saved the customer’s costs.

In the process of communicating with customers, we understood that the customer had the ability to weld the dredge machinery body by himself. So we can only provide the main pontoon, he would weld the side pontoons by himself. In the main pontoon, we connected the sand dredging pump with diesel engine, water pump with diesel engine, and other accessories. At the same time, we provided the side pontoons drawings to customer, and then he welded the side pontoons in the local place. With this way, customer saved processing costs and transportation costs.

For sand discharge pipe and sand dredger floater, customer needed 8 inch HDPE pipes, it would need 3 pairs floaters every 10 meters pipes, 500 meters pipes needed 150 pairs floaters. As customer had some old oil drums around his worksite, so he used the oil drums instead of floaters.

Since we had already connected the main components of the dredge machinery, the rest of the work was very simple. We tested the sand slurry pump dredger before shipment and took videos to show customer how to install and operator it. After the dredger arrived the worksite, the customer connected their welded side pontoons to our main pontoon perfectly.

Dredge Machinery Technical Parameter

This kind of dredge machinery was very convenient to use. The dredging equipment could be operated by 1-2 people. After using for about one week, we knew that they worked 6 hours one day and they could get 700 m 3 sand every day, this was a great harvest for our customer.

Through the whole communication process, we consider the interests of our customer. On the premise of ensuring the quality and usage of dredge machinery, we always think about saving costs for our customer. Customer is very satisfied with our sincerity and professionalism.

5. Conclusion:

Choosing appropriate dredging machinery is very important for sand and mining or river dredging. This article introduces OCEAN dredging products and their characteristics, and provides practical cases for customers to choose from. Understanding the performance and characteristics of different machinery can help ensure the smooth progress of dredging work. For larger river sand mining projects, especially those with loose sand bed, OCEAN jet suction dredger is a more efficient method that can effectively complete the project and quickly recover sand and gravel.

OCEAN Pump had been specializing in delivering turnkey sand dredgers and sand pumps to worldwide customers. We have strong ability in custom sand dredgers designing and manufacturing. In recent years, we have been keeping on investing in technological innovation, integrated sand dredgers modular customization. The safe and efficient operation of most kinds of our sand dredgers can be satisfied with our customized solutions by our professional staffs and solid technologies.

OCEAN Pump Brand sand dredges are widely used for river channel sand excavation, sand extraction in sand mine, harbor dredging, reclaim land from the sea, slag cleaning transportation, harbor dredging, salt mining, etc. We had provided effective portable dredgers and solutions to over 60 countries. Our customers are from Malaysia, Singapore, Thailand, India, Singapore, Sri Lanka, Maldives, Liberia, Kazakhstan, Brazil, Myanmar, Nigeria, Vanuatu, Uganda, Cameroon and Côte d’Ivoire, etc.

Contact with us for more details:
Sally Peng

Tel /WhatsApp /Wechat :+86 18554212226   +86 13793808065

Email: oceanpump2@tsbeng.com, sales@sanddredgers.com