Skip to main content

Custom Marine Hydraulic Cylinders, Actuators, and Systems

Marine Hydraulics Engineered for the Rigors of Hostile Environments

Passion Engineering is built on the understanding that marine hydraulic cylinders, actuators, and systems are critical to crew safety and reliable vessel operations.


Passion’s custom marine cylinders for mission-critical and demanding applications are meticulously engineered for their unique applications. Our marine actuators and systems often incorporate design and construction elements that involve:

  • Corrosion resistant marine rod cladding systems
  • Stainless steel, nickel, titanium, and other specialty alloys
  • Corrosion, abrasion, and UV resistant paint, coating, plating, and cladding systems
  • Designs for environmentally sensitive applications
  • Redundant rod and piston seal systems
  • Corrosion resisting gimbals, spherical rod ends, trunnions, and other mounts
  • Designs for hazardous areas
  • Actuators for submerged, splash zone, and exposed marine environments
  • Over-sized corrosion resistant bearings
  • Integral end-of-stroke proximity switches and position, pressure, and force transducers
  • Long stroke marine cylinders with elastic stabilities in compliance with ISO/TS 13725:2016
  • Classification society rules

Designed and Built for Your Application

Every custom hydraulic cylinder, power unit, and actuator by Passion Engineering is engineered and constructed to serve the requirements of its unique application.


Large-bore custom marine hydraulic cylinders for a ship moonpool. Three of the four cylinders built are lined up on pallets.


  • Cruise ships and Ferries
  • Dredges
  • Split hopper barges
  • Remotely Operated Vehicles
  • RO-RO transport vessels
  • Pipe laying vessels
  • Jack-up vessels
  • Yachts
  • Specialty vessels
  • Piling barges
  • Oceanographic research vessels


  • Crane cylinders
  • Jack systems and cylinders
  • A-frame cylinders
  • Roll-on / Roll-off (RO-RO) system cylinders
  • Fin stabilizer cylinders and actuators
  • Retractable thruster cylinders
  • Stern door and stern ramp cylinders
  • Bow door and visor cylinders
  • Hatch cover cylinders
  • Watertight door cylinders and actuators
  • Heave compensation systems and cylinders
  • Moonpool cylinders
  • Spud carrier and hoisting cylinders
  • Backhoe, cutter suction, and trailing suction dredge hydraulic cylinders
  • Retractable keel cylinders
  • Tidal power gate cylinders
  • Wave energy conversion cylinders
  • Sideport cylinders

Perfect Your Hydraulic Machines

Elevate machine performance and simplify projects with hydraulics engineered for your application.