Propellers and Shaftline
Systems for Demanding Ice Operations
Railotech delivers complete propeller and shaftline systems designed for demanding ice‑class operations. Our solutions combine decades of full‑scale measurement data, advanced engineering, and deep experience in Arctic and Antarctic vessel design. Our propeller and shaftline references include Module carriers, Tugs, Detachable bow, Navy ships, PC2 Polar icebreakers, and Research vessels.
Decades of experience
Railotech´s experience to design and deliver shaftlines for ice-going vessels dates back to the 1980s and 1990s.
7 shaftlines 22 propellers
are in propulsion design and delivery references by Railotech since 2015.
12 vessels
Our propeller and shaftline references include Module carriers, Tugs, Detachable bow, Navy ships, Polar Icebreakers and Research vessel.
PC2
Railotech is supplying propellers and shafllines to three icebreakers with PC2 ice-class.
Classification and design of propulsion and shaftline
Propulsion shaftline interface element design check
Shaftline monitoring system
Performance guarantee
Our scope of supply
We provide the full scope – from hydrodynamic and mechanical design to material supply, component certification, installation supervision, factory acceptance testing, and commissioning – ensuring that each propulsion line meets both classification requirements and the real‑world performance expectations of ice‑going vessels.
Our propeller and shaftline deliveries have been proven in more than 250 vessels, including icebreakers, tankers, corvettes, ferries, and other ice‑strengthened ships, supported by unique full‑scale data and long‑term operational feedback. This expertise guarantees safe, efficient, and reliable propulsion performance even in the harshest ice conditions
References
FINNISH NAVY CORVETTES
A propulsion system that combines high speed and efficiency in open water with the strength required for operation in ice.
Read more
AUDAX, PUGNAX
The transportation of modules for LNG plant in Arctic area became possible with our expertise and further built module carriers.
Read moreArticles
Propellers and shaft lines to Finnish Navy corvettes
Railotech has been developing the propulsion line in co-operation with the Finnish Defence Forces since 2015 to ensure that the new multi-role corvettes will meet the demanding operational performance requirements of the Finnish Navy.
Full-scale trials of Calypso and Saimaa
Railotech designed and delivered the complete shaft lines with propellers for the detachable bow and the ice-strengthened bronze propellers for the pusher.