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Heavy-Duty Submersible Pumps and Dredging Units

Dragflow heavy-duty pumps have been designed and built to work especially in burdensome conditions where generally normal pumps cannot operate.

Dragflow heavy-duty pumps have been designed and built to work especially in burdensome conditions where generally normal pumps cannot operate. Our advanced design is based mainly on the agitator which is fixed on the main shaft.

Dragflow agitator enables our pumps to rise and convey liquids and mixtures with medium-high specific weight such as mud, slimes, silts, sand and gravel with sizes up to 120mm.

Our pumps can work in such bad conditions thanks to the special materials used to construct every pump. Agitator, impeller, lower and upper wear plate have been made of cast iron, including 30% chrome.

That means a hardness of about 600HB / 650HB and, as a consequence, an incomparable abrasion resistance.

Complete hydraulic dredging unit equipment.
Dredging along river shore (hydraulic pump).
Hydraulic pump coupled with excavator machine.
Typical heavy-duty application (please note lack of water).
Dragflow dredges.

Heavy duty submersible pumps range

Heavy-duty submersible pumps with agitator are available either in hydraulic or in electric version.

  • Electric version power output: from 3.7kW up to 110kW
  • Hydraulic version power output: from 9kW up to 300kW

The pump can be equipped with cutters, which coupled with the agitator stir up the solids settled on the bottom in order to be easily pumped out and creating a homogeneous mixture with higher percentage of solids, getting a higher efficiency.

Please consider that Dragflow is the sole manufacturer of cutters in Europe.

Pumps for dredgding applications

Heavy duty submersible pump applications in dredging include: sand and gravel extraction; clean up of rivers, locks, lakes and lagoons; dredging of harbours and dams up to 300m depth and 120mm cross-section; intake towers cleaning-emptying of caissons and bulkheads.

Pumps for mining applications

Dragflow has a complete line of pumps for slurries with specific gravity up to 1,6 ton/m3. Heavy-duty submersible pump applications in mining include: clean up of settling tanks; tailing removal, desludging; removal of slimes; drilling waters; separation and grinding plant; inert wash sludge; minerals and foundry sand.

Pumps for pollution control

Heavy-duty submersible pump applications in pollution control include: refineries; port authorities; maintenance department in almost all industrial application; local environmental office; city hall environmental department; mines; underground; industrial waste.

Pumps for tunnelling

Heavy-duty submersible pump applications in tunnelling include: general hard dewatering; tunnel floor water control; tunnel making; removal of drill water.

Pumps for quarrying

Heavy-duty submersible pump applications in quarries include: sand and gravel extraction, water seepage; stock pile dewatering; wash plants; control of slurries; water reservoir desludging.


Dragflow leads this field through the innovative design of systems able to improve productivity and to minimize downtime. Our products are well known for pumping large quantities of solids by the agitator and the cutters, which put in suspension the material settled at the bottom. Thanks to such features, Dragflow pumps deliver a higher quantity of dry tons per hour, than any other dredging system.

Modular and transportable dredging units

In addition, based on its long-term experience in submersible pumps, Dragflow has started to design and manufacture modular and transportable dredging units.

The use of simple components means low cost and easiness of maintenance, simplicity to repair possible breakdowns and low prices of spare parts.

As a result of flexibility of our equipment and modularity of its components, Dragflow can manufacture different types of dredges to comply with the different client requests. On demand, we can supply dredges in accordance to the rules of the Italian Naval Registration (RINA).

We are able to supply also automated and unmanned dredges and remote controlled dredges. These equipment minimise labour and maximise production of solids at the set flow rate.

White Papers

  • Dragflow - Dredging Solutions

    Growth of global population, tourism, transportation of people and goods, together with increased awareness of the need to protect the planet are shaping the future of dredging technologies.


Press Releases

  • Dragflow Harbor Dredging

    Dragflow recently supplied a remote controlled dredge for a harbor dredging project in Marina Sveva (Italy).

  • Dragflow Cable Dredge for Mining Project in Indonesia

    Dragflow supplied a Cable Dredge (DRH) to a large surface mine operation, primarily producing copper and small amounts of gold and silver. The mine is located in the southwest region of the island of Sumbawa, in the district of Sekongkang, West Nusa Tenggara Province, Indonesia.

  • New Dragflow Amphibious Dredge

    The new Dragflow Amphibious Dredge (DRM85 / 160E22), created by Dragflow specialists, was sold by our Chilean distributor Jacol to an important mining company in the North of Chile, a supplier of plant nutrients, Iodine, Lithium and industrial chemicals. The machine is going to work in a tailing pond near a mine in the Atacama Desert.

  • Dragflow Cutterhead a Big Success in Dredging Applications

    Dragflow 's new cutterhead (DTM85) is a huge success. The company recently delivery another unit (DTM85 with hydraulic pump HY85B), for a sand production project in Pakistan. Dragflow was able to provide the equipment in just five days from time of the request.

  • Dragflow to Exhibit at Pollutec 2014

    Dragflow will be presenting at Pollutec expo from 2 - 5 December in Lyon, France. Dragflow offers heavy-duty pumps designed and built to work in challenging conditions where standard pumps cannot operate, including for pollution control.

  • Dragflow Presents the New Cutterhead at Big 5 in Dubai

    Dragflow will be presenting at Big 5 Exhibition, the International Building and Constructor Show is to be held on 17 - 20 November at Dubai World Trade Center, where Dragflow will reveal for the first time its new Cutterhead.

  • Dragflow to Attend WEFTEC for the First Time

    For the first time ever Dragflow, a world player in solid pumping solutions, will be present at the Water Environment Federation's Annual Technical Exhibition and Conference, or WEFTEC 2014.

  • Dragflow Announces New Line of Dredges

    Dragflow, a world player in solid pumping solutions, announces the complete restyling of its dredges; a technical initiative to improve design, working conditions and process monitoring, building on our traditional strengths; pumping high solid concentrations, working at high depth with operating costs among the lowest on the market.

  • New Dragflow Installation in Brindisi Harbor

    Dragflow extends its wide range of products, launching on the market an innovative 'booster station'. The new booster pump is proposed together with traditional submersible dredge pumps, and is perfect for projects that require a very long delivery distance, or to reach a high discharge level.

  • Dragflow: High Depth Dredging

    A new trend of deep sea and high depth dredging and exploration is emerging in the dredging market. Deep sea exploration represents both a development possibility, and a huge technical challenge, where critical hyperbaric conditions, remote control and maintenance amends play an important role.

  • Dragflow Lands in the Social Media World

    Youtube, Facebook, Twitter and Linkedin are now waiting for your opinions about our products, the dredging and mining market, technological development and much more. Dragflow, always on the cutting edge and always closer to his customers, in a simple and transparent way. Ple

  • Dragflow for Social Responsibility

    Dragflow is a world player in solid pumping solutions with over 25 years of experience in manufacturing heavy duty pumps and complete dredging equipments, focused on the continuous development of its design and manufacturing activities for dredging, mining and industrial sectors. But there is ano

  • Dragflow to Exhibit at Summer Conferences

    Dragflow continues its world tour to introduce its products and technologies to mining and dredging industry. Come and meet us during the following exhibitions in the next upcoming weeks: CIM Conference and Exhibition: Montreal, Canada, Sunday 22 May 2011 - Monday, 23 May 2011. <

  • Dragflow Achieve Successful Installations and New Partnership in Peru

    Dragflow, consolidated supplier of pumping solution for heavy duty application, teams up with Intech in Peru for the distribution of dredging and mining equipment. "After two successful installations in Cerro Verde and Antamina we are now in the right path to further penetrate the minin

  • Dragflow Achieves Successful Installations and New Partnership in Peru

    Dragflow, consolidated supplier of pumping solution for heavy duty application, teams up with Intech in Peru for the distribution of dredging and mining equipment. "After two successful installations in Cerro Verde and Antamina we are now in the right path to further penetrate the minin

  • Dragflow Dredging Equipment Launches New Company Website

    Dragflow, a specialist manufacturer of dredging and mining pumps as well as turnkey dredging equipment, is proud to announce the launch of their new company website. The new website coincides with a fresh new logo and corporate message “Dredging – Mining – Industry” and is designed to

  • Dragflow Teams Up with Aquatech in Eastern Canada

    Dragflow, one of the main manufacturers of dredging and mining pumps, has partnered with Aquatech Pump and Power, leader in dewatering and pump-related services in Ontario, to promote Dragflow pumps in Eastern Canada, from Ontario to the East Coast. Dragflow products are well-known for

  • Dragflow and Primax Co-Operate in Africa and India

    Dragflow, one of the main worldwide suppliers of mining pumps, and Primax, a company of Sykes Group, one of the largest auto prime pump manufacturers, have reached an agreement to further promote and distribute Dragflow slurry pumps in India and Africa. With this agreement Dragflow will

  • Dragflow to Participate in Conference, Warsaw

    Dragflow with its partner Wichary Technologies, will attend the II Conference: modern mining of gravel and sand in Zegrze (near Warsaw) on the 15 -16 of June. The main purpose of the meeting is to show all new technologies, machinery and equipment used in the gravel and sand mines and

  • Dragflow Appoints Eekels as its Sole Dutch and Belgium Distributor

    Dragflow, one of the most qualified suppliers of heavy duty pumps in the mining and dredging industry with more than 25 years of experience, has enlarged its sales network appointing Eekels as its sole Dutch and Belgium distributor for its complete products range. This collaboration wit

  • Dragflow to Exhibit at BAUMA 2010 in Munich, Germany

    We are pleased to announce that Dragflow will be exhibiting at the BAUMA 2010 international trade fair. The event will run from the 19th to the 25th April 2010, in Munich. On this occasion the company will exhibit complete dredging equipment: the HY85 pump with two EXHY20 side cutters.

  • Dragflow Introduces New Mining Pump

    Dragflow electric pumps line has grown with a new model especially designed for the mining market. The new pump, called EL25S, is an evolution of the well-known model EL25, widely used in the mining industry. It has an empowered engine and a specific impeller in order to be able to han

  • Dragflow to Exhibit New Pump Range at Katowice 2009

    Dragflow, a leading company in heavy-duty pumps manufacturing, will participate in 'Katowice 2009', an international fair for the mining, power industry and metallurgy industries, with its new distributor Wichary Technologies. At this event, which runs between 1-4 September 2009, the company will

  • Dragflow to Participate in Extemin and Exposibram in Latin America

    Dragflow, a well-known manufacturer of submersible dredging pumps for mining applications, will participate in two of the most important exhibitions in Latin America for the mining sector: Extemin, from 14 September to 18 September 2009 in Peru, Arequipa Exposibram, from

  • Dragflow Introduces New Electric Mining Pumps

    Dragflow is proud to present its new electric pump range. Many years of experience in the mining and dredging section have lead us to develop new electric pump models to fulfil customer requests. These pumps are: EL354 and EL604 - pumps with high head for long discharge dis

  • Dragflow Presents New Dredges Catalogue

    Dragflow was born at the end of the 1980s as a manufacturer of heavy-duty submersible agitator pumps specifically designed for handling slurries with a high content of abrasive solids. As a recognised leader in the production and marketing of submersible dredge pumps, Dragflow has gain

  • Dragflow to Exhibit at Mining World – Moscow, Russia

    We are pleased to announce that Dragflow will be exhibiting at Mining World. The event will run 15-17 April 2009 at the Crocus Expo in Moscow, Russia. On this occasion the company will present its new pump range, with new electric and hydraulic pumps, and its complete dredging equipment

  • Dragflow: Turbidity Control During Dredging Operations

    Dredging operations can cause an elevated and complex environmental impact. Together with the problem of draining materials resulting from dredging, the necessity of protecting the marine ecosystem during the operations of excavation is assuming greater importance. The water turbidity in the zone

  • Dragflow: New Hydraulic Dredging Pumps HY85 / 160

    Dragflow is proud to present a new hydraulic dredging pump family. The evolution of legislation - which is becoming more and more severe in the area of dredging operations - and many requests from customers have lead Dragflow to respond once again to the challenge. The new family of dredging pum


Products & services

  • Mini Dredge

    Dragflow's remote-controlled dredge is the ultimate technology in the dredging sector.

  • Excavators and Water Jet-Ring

    Dragflow pumps can create a self-contained excavating system for hard compacted soil, where a mechanical excavator would otherwise be required.

  • Hydraulic Systems

    In the world of mining or dredging, you can face a lot of different situations or problems. Dragflow is a specialist in customising solutions to satisfy clients' needs.

  • Submersible Electric Pumps

    The Dragflow team constantly works not only to find new technological solutions that improve the performance of its products, but also to design specific solutions for contractors and end users, optimising sustainable operations with energy savings and reducing the environmental impact and overall costs.