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Level measurement in the hopper of the trailing suction dredger

Process data

Measuring task:
Level measurement
Measuring point:
Measuring range up to:
15 m
Sand, gravel and seawater
Process temperature:
-10 ºC … +50 °C
Process pressure:
0 … 0 bar
Special challenges:
Foam, saltwater sprays, extreme weather conditions


The hopper contains a mixture of sand, gravel and water. This mixture is collected by one or two suction pipes and drag heads that move over the seabed. The water flows out through so-called overflows and sand and gravel remain and are transported to an end destination for creating new land, or to be used as a supplementary material or building material. Accurate measurement of filling height, to determine the exact volume of displaced material, is important for smooth operation.

Your benefit

Exact measured values are important for smooth operation
Cost effective
Reliable measurement ensures safe and efficient loading and unloading, so that these ships have a longer uptime
User friendly
Maintenance free operation thanks to non-contact measurement

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