Marine Thruster

Marine thrusters are propulsion devices that provide precise maneuvering and or propulsion to marine applications, often serving as the main propulsion system or as aid during docking and tight navigation. They can be used for boats, underwater vessels, inspection equipment and many other marine applications. A sub-group within this sort of equipment are rim-type thrusters, where an impeller provides a thrust through a fixed tube-like housing. These thrusters show for example great efficiency, low noise, reduced maintenance need and high compactness. 

Alva’s introduction of the FiberPrinting™ technology, and the motors that are built with this technique, makes it possible to improve rim-thrusters dramatically. These motors deliver a high ID/OD ratio with very low speed dependent losses, perfect for rim-thursters which operate at high speeds and need room to fit the impeller in the centre. The non-skewed windings and high copper-fill factor allow for efficient and compact stators, which also can be submerged directly into water for increased cooling.