Plastics for hydraulics and harbour construction

Extremely resistant materials and components are essential in hydraulic engineering and harbour construction. Depending on the application, they may need to withstand corrosive salt water, strong UV radiation and high mechanical stresses. We offer plastics that are designed specifically for these demanding requirements. They are used, for instance, in the construction of powerful locks and resistant fenders right across the world, from the Panama Canal to Venice.

Your advantages

  • Long-lasting: resistant to corrosive salt water, UV radiation and weathering
  • Low maintenance
  • High mechanical toughness
  • Low water absorption

Typical areas of application

  • Fender systems
  • Harbour installations
  • Lock systems
  • Fish screen installations
  • Sea water desalination plants

Product examples

Fenders

Mounted on fender systems, sliding sheets made of our material Polystone® M (PE-UHMW) protect quay bulkheads and ships during mooring and harbour manoeuvring and during idle periods. The ready-to-mount sheets are characterized by high abrasion and wear resistance and are resistant to corrosion, UV radiation and weathering. More information about Polystone® M (PE-UHMW)

Slide elements for lock gates

In locks steel gates weighing tonnes have to be moved quickly and reliably. Thanks to their excellent slide properties, special slide rails made of our material Polystone® M slide (PE-UHMW) allow gates to be moved reliably with little use of energy. Slide rails made of Röchling materials are used in lock systems everywhere, from the Panama Canal to Venice. More information about Polystone® M slide (PE-UHMW)

Durostone® fasteners

Durostone® fasteners are particularly resistant to corrosive salt water and are very UV and weather-resistant. They are used in hydraulic engineering and harbour construction applications such as sea water desalination plants. More information about our Durostone® fasteners

Fish screen installations

Two-part U-profiles made from Polystone® P grey (PP) are used in a fish screen installation for a power station. To keep fish away from the intake station for the cooling water, they are driven away by electric shocks if they swim into an electric field in front of the pipe. The U-profiles fix the required electric cables to the base of the cooling water pipe. More information about Polystone® P (PP)

Arrange technical advice

The performance and service life of materials used in hydraulic engineering and harbour construction are influenced by a variety of factors. These criteria need to be considered in order to make the right choice. Examples:

  • Contact with salt water
  • External influences such as UV radiation and weathering
  • Mechanical loading
  • Design requirements
  • Dimensions and tolerances

We are happy to advise you on the selection of suitable materials for your particular application. Just use our contact form at the bottom of the page and write to

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Water & Harbor Construction
Röchling Industrial

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