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Tunnel Thrusters

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Tunnel thrusters are primarily used for docking, slow speed maneuvering, emergency steering and station keeping at zero or slow forward speed. Tunnel thrusters are installed transversely in the bow or the stern of a vessel.

Electric Tunnel Thrusters

Electric drive tunnel thrusters with fixed pitch propeller are available from 250 to 10,750 HP (180kW to 8.0MW).  They are designed for variable speed electric motor input, either DC with SCR control systems or AC with variable frequency drives.  Most electric tunnel thrusters are used in dynamic positioning applications and where there is an abundance of electrical service already available.

 

Engine Driven Tunnel Thrusters

Engine driven tunnel thrusters for direct engine drive are available in the range of 250 to 3,000 HP.  The engine must be provided with a marine gear with a reduction ratio to match the input speed of the thruster.  A cardan shaft connects between the output shaft of the marine gear and the input shaft of the thruster. 

 

Hydraulic Tunnel Thrusters

Thrustmaster offers a great line of hydraulic tunnel thrusters from 35 to 3,000 HP.  They are used all over the world, many of them in dynamic positioning applications. Many models have ABS Type Approval. Thrustmaster hydraulic tunnel thrusters are available from 35 to 2,000 HP. Geared tunnel thrusters for electric or direct engine drive are available from 250 to 3,000 HP.

 

Electric Tunnel Thrusters from Thrustmaster

Hydraulic Tunnel Thrusters for mid sized yacht from Thrustmaster

Thrustmaster Drawings - Thrustmaster is updating all drawings to Solidworks. This allows faster and more accurate development of assemblies and maintaining par-level stocks in our vertically integrated parts warehouse. Each Solidworks model can then be reverted to an AutoCAD plan view drawing for placement into customers drawings. Please contact Thrustmaster Engineering for the most current drawing for your application.

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