Reliable Power for Civil Projects

Hydraulic cylinders designed for dams, locks, and bridges are engineered for maximum reliability and performance in high-demand, critical infrastructure applications. Built to withstand extreme loads, harsh environments, and continuous operation, these cylinders feature heavy-duty construction, corrosion-resistant materials, and precision sealing systems. The design process is tailored to each application, ensuring optimal force output, stroke, and durability. Advanced manufacturing techniques and rigorous testing ensure each cylinder delivers long-lasting, maintenance-friendly performance in even the most challenging civil environments.

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Applications

At DELLNER HYDRATECH, we manage every aspect of the process in-house—from design and engineering to manufacturing and rigorous testing—allowing us to maintain complete control over quality and performance. This comprehensive, end-to-end capability enables us to support our customers at every stage, from initial concept through to final delivery and long-term service.

  • Bascule, Swing, or Lift Bridges
  • Expansion Joint Actuation
  • Sluice & Spillway Gates
  • Intake & Outlet Gates
  • Turbine Regulation
  • Tunnel Boring
  • Structural Shoring
  • Load Transfer Systems
  • Jacking Systems
  • Hydraulic Hammers & Compactors
  • Lock Gate Operation
  • Dry Dock Gate Control
  • Customizable to project specifications
  • Maximum durability
  • Superior corrosion resistance
  • Global Certifications
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Customized Manufacturing

  • Bore Sizes up to 30” (760mm)
  • Strokes up to 60 ft (18m)
  • Test Pressures up to 10,000 psi
  • ASME approved weld procedures
  • CAD Designing
  • Material Traceability
  • Prototype Development
  • Full Paint Room
  • Sand Blast Room

Global Certifications

Achieving industry certifications reflects our commitment to exceptional manufacturing, ensuring the highest standards of quality, precision, and innovation in every product we deliver.

  • DNV
  • BV
  • ABS
  • PED
  • Lloyds
  • SME
*May be obtained upon request

Repair, Overhaul, Inspect & Upgrade

DELLNER HYDRATECH is committed to maintaining the quality and performance of our manufactured products through expert repair, inspections, complete overhauls, and strategic upgrades. Our dedicated team ensures that each product continues to meet industry standards, enhancing reliability, efficiency, and longevity, maximizing your investment.

  • DELLNER HYDRATECH’s comprehensive service offering includes:
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    • Repair, overhaul, or upgrade of both our cylinders and all other brands
    • Comprehensive inspection and analysis of all components conducted by experienced hydraulic experts
    • Expert service teams with extensive experience and access to Dellner Hydratech’s global knowledge repository
    • Complete in-house machining, sandblasting, painting, welding, and assembly capabilities
    • Service tools for enhanced efficiency
    • Established network of global suppliers and workshops worldwide
    • Overhaul, retrofit, and repair to original specifications or upgrades
    • Detailed documentation featuring a thorough inspection report outlining all findings
    • Reengineering as necessary to extend cylinder life
    • Refurbishment services for cylinders and valve blocks
    • Replacement of all fittings
    • Pressure and functional testing
    • Routine seal replacements or upgrades to the latest seal technology
    • Innovative surface treatments and rod finishes, including:
      • Hard Chrome: Single or Double Layer
      • Nickel + Hard Chrome
      • Hard Chrome on Stainless Steel
      • HVOF
      • Ceramic
      • Laser Cladding
      • Stainless Steel