Electric driven

Clamshell Dredgers

ROHR-IDRECO floating clamshell dredgers are designed to extract sand and gravel from 10 to 60 or even 90 metres below water level. All dredgers are custom-built to the requirements of each deposit and the needs of every customer.

Customers can choose among various components for on-board processing, such as double or single-deck screening machines, crushers, fine sand recovery, conveyor belts or hydraulic transportation to site. Two types of hydraulic motor grabs manufactured in-house complete the package and make the dredger an efficient tool for every purpose.

Highest efficiency

Our advanced automation and monitoring software, developed in-house, ensures the highest efficiency and the lowest possible energy consumption.

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Low carbon footprint

The ROHR-IDRECO dredgers are electric driven (diesel/diesel-electric drives are optional). This ensures the highest efficiency and the lowest possible energy consumption.

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Clamshell Dredger series

Catamaran with Processing Plant or for Automatic Barge Loading.

Grab capacity

 5-15 m3

Carrying capacity

 18-55 t

Lifting speed under water

 110-120 m/min

Lifting speed above water

 75-90 m/min

Lowering speed above water

 75-120 m/min

Lowering speed under water 

 150-180 m/min

Dredging depth hydraulic grab

 

 10-100 m / 180 m (rope grab)

 

 

Catamaran with Processing Plant or for Automatic Barge Loading.

Grab capacity

 4.2-12 m3

Carrying capacity

 14-45 t

Lifting speed under water

 110-120 m/min

Lifting speed above water

 75-90 m/min

Lowering speed above water

 75-120 m/min

Lowering speed under water 

 150-180 m/min

Dredging depth hydraulic grab

 

 10-100 m / 180 m (rope grab)

 

 

Catamaran with Processing Plant or for Automatic Barge Loading.

Grab capacity

 4.2-6 m3

Carrying capacity

 14-22 t

Lifting speed above water

 70-90 m/min

Lowering speed above water

 70-120 m/min

Lowering speed under water 

 70-160 m/min

Dredging depth

 

 10-60 m

 

 

Hartheim-WM05-3466

Your benefits

Electric-driven

No emission, minimal noise pollution

Electric-driven

One-man operation

With our iDredge® control- and automation system

One-man operation

Containerized

Low-cost transportation worldwide

Containerized

Environment

Small environmental footprint

Environment

Commitment

Lifetime supply of parts and services

Commitment

Full customization

iPump® type, excavating grinders and visualisation

Full customization

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Contact

Do you want specialist advice about how our products can be used for your application? Get in touch with one of our experts!

Mail-Fulco
Fulco Vrooland
CEO
Mail-Meindert
Meindert Lodewijks
Group CFO/COO
Mail-Remko
Remko Groen
Project Manager
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