Marine Cranes

Rapp Marine is a manufacturer of marine deck cranes that meet the needs of vessels in the global marine, offshore oil & gas markets

Rapp Marine cranes (formerly Hydra Pro cranes) will be found working in many commercial workboat applications, including the oil and gas industry, on petroleum platforms and service vessels as well as inside LNG facilities handling critical pumps and equipment. Other pedestal cranes are used onboard fishing trawlers and crabbers, and the big fish processors that work the icy waters of northern seas.

Rapp Marine cranes are also used on many barges carrying bulk petroleum along the coasts and inland waterways. The marine cranes operate every day in harbors moving equipment and supplies, while others handle hoses and gear used for transferring fuels. Rapp Marine has also developed many highly innovative and customized pedestal cranes for specialized applications. If the vessel requires a unique solution, Rapp Marine can engineer the correct crane for the job.  

Rapp Marine manufactures the following crane types:

- Fixed Boom
- Knuckle Boom
- Knuckle Extension
- Telescopic Boom


- Lift Capacity range from 2 to 100+ tons
- Boom Length range from 5 to over 100 ft 
- Manufactured from high strength low alloy steel
- 100% seal welded, watertight for corrosion protection
- Hardened stainless steel crane cylinder rods and sheave pins, steel pistons, bolt-on head gland retainer, and built-in safety valve
- Crane cylinders comply with U.S.C.G. burst and failsafe specifications
- Crane Cylinders designed to A.S.M.E. section VIII (unfired pressure vessels) requirements
- Line bored AL-NI bronze bushings all pivoting and static joints
- Stainless Steel Tubing and Fittings
- Crane Winches Used
    - Braden
    - Gearmatic
    - Roetzler
    - Rapp Marine Custom

Design Standards:

- American Bureau of Shipping (ABS)
- American Petroleum Institute (API)
- ISO 9001:2008
- Lloyd's
- U.S. Coast Guard (USCG)


Marine Crane Brochure
Brochure for Rapp Marine cranes
Marine Crane Reference Charts
Reference charts for lift capacity and reach of Rapp Marine crane models
  • Two Rapp Marine Cranes on board Crowley Articulated Tug Barge (ATB)
  • Pair of Knuckle Boom Marine Cranes in Alaska
  • 100 ton Telescopic Crane
  • Dual Telescopic Cranes on Hornbeck Offshore Vessel
  • Fixed Boom Crane on Oil Platform
  • Knuckle Boom Crane Installed on Sealion Voyager
  • Knuckle Boom Crane with Dual Stainless Steel Cylinders
  • Fixed Boom Crane with Auxiliary Winch