Marine & Offshore

We provide corrosion-resistant, high-reliability cylinders for vessels, rigs, and offshore platforms to meet demanding marine conditions.

Hydraulic Cylinders for Marine and Offshore Operations

At RHK Hydraulic Cylinder Services Inc., we provide high-performance hydraulic cylinders designed to meet the demanding conditions of the marine and offshore sectors. Saltwater exposure, extreme pressure, and continuous operation require cylinders that are both powerful and reliable. Our solutions deliver precision, durability, and consistent performance for a variety of applications in ships, offshore platforms, and marine infrastructure.  

Operating in extreme environments—saltwater exposure, high pressure, heavy loads, and continuous motion—requires cylinders that are not only powerful but also reliable, precise, and durable. Our solutions keep ships, offshore rigs, ports, and subsea systems operating safely and efficiently. RHK designs and manufactures every cylinder to withstand the harshest marine conditions, with corrosion-resistant materials, robust seals, and custom engineering. Our in-house team handles everything from design to testing, delivering cylinders built to exact specifications and industry standards. 

Reliable Offshore Performance

Hydraulic cylinders are essential to the marine and offshore industry, providing the strength, precision, and reliability needed for steering, stabilizing, and operating cranes, winches, and subsea equipment. Built to withstand saltwater, extreme pressure, and continuous use, RHK cylinders ensure safe, efficient, and uninterrupted offshore operations.

Common Applications:
Ship & Vessel Operations (Steering Systems, Deck Cranes & Winches, Hatch & Door Actuation)
Offshore Platforms & Rigs (Drilling Rigs, Jack-up & Floating Platforms, Subsea Equipment)
Loading & Handling Systems (Container & Cargo Handling, Gangways & Access Platforms, Offshore Cranes & Lifting Systems)

Custom Hydraulic Cylinders for Marine & Offshore

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Single Stage

Single Stage

A single stage hydraulic cylinder uses one piston and bore to deliver linear force and motion, providing reliable, straightforward performance for applications requiring consistent stroke, strength, and ease of service.

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Telescopic/Multi-Stage

Telescopic/Multi-Stage

A telescopic hydraulic cylinder employs two or more nested stages to achieve extended stroke lengths from a compact retracted design, making it ideal for applications where space constraints and long reach are critical.

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Leveling/Stabilizing

Leveling/Stabilizing

Leveling jack cylinders are hydraulic cylinders designed to stabilize and level equipment by extending and retracting to provide a secure, balanced working platform.

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Position Sensing SMART

Position Sensing SMART

Position sensing SMART cylinders integrate linear sensors within the cylinder to provide real-time stroke position and velocity feedback for precise control, automation, and improved equipment safety.

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Large Bore/Long Stroke

Large Bore/Long Stroke

Large bore, long stroke hydraulic cylinders are engineered to deliver high force over extended travel distances, making them ideal for heavy-duty industrial and mobile applications.

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Specialized Custom

Specialized Custom

From non-standard dimensions and mounting configurations, to specialized materials and integrated features, every detail is tailored to your needs.

Partner with Us

Our Sales and Engineering team has extensive experience developing solutions that fit your application.