Bow thruster

tunnel typefor shipselectric

Thrustmaster geared tunnel thrusters are used to develop lateral thrust under extreme load conditions in demanding offshore applications for dynamic positioning or for slow speed maneuvering of marine vessels and are available from 150 hp (100 kW) up to 5,000 hp (3,500 kW) with tunnel diameters from 30 in. (762 mm) up to 136 in. (3,455 mm). Made with fixed pitch propellers, Thrustmaster’s tunnel thrusters are designed for diesel engine driven or variable speed electric motor input in the L-Drive configuration. A bi-directional electric motor with variable frequency drive can be mounted horizontally or vertically on the thruster depending on the given space restrictions. A diesel engine with a marine gear can also be used. Thrustmaster tunnel thrusters have been installed in many vessels operating around the world. Thrusters can be supplied complete with electric motors and drives or they can be made to fit flange and shaft end of a customer supplied or shipyard supplied electric motor. Many sizes are available. Please contact our sales department for your application. Some models have ABS Type Approval. Thrusters up to and including model 90TT2000-ML do not require external cooling – any heat generated by the gears and bearings is dissipated through the pod housing to the surrounding seawater. Models larger than 90TT2000-ML require an external lubrication circulation and cooling system. This lubrication system is included in Thrustmaster’s scope of supply