For aluminum ships we provide a tunnel thruster which consists of a steel gear unit in an aluminum tunnel. Here, the steel gear unit is mounted isolated from the aluminum construction.
A streamlined right-angle gearbox with propeller is mounted in the tunnel. On top of the tunnel is a vertically mounted electric or hydraulic motor providing the drive in 2 directions (port and starboard).
The Veth range of tunnel thrusters are fitted to a wide range of vessels worldwide.