Marine Tunnel Thruster

Marine Tunnel Thruster

Application

A marine tunnel thruster is a type of propulsion system used in ships, boats, and other watercraft that provides directional control and maneuverability. It is a propeller-like device that is mounted in a tunnel on the bow or stern of a vessel, and it operates by pushing water through the tunnel to generate a sideways force that can be used to turn the ship.

It is used to provide thrust to the vessel to move sideways. The thruster is mainly used when the ship navigates in a narrow waterway, leans on a wharf or turns a head, and the conventional rudder equipment is difficult or impossible to operate. It is also commonly used in ship operations in harsh environments.

Marine tunnel thrusters are divided into fixed pitch tunnel thruster (FP) and controllable pitch tunnel thruster (CP). According to the source of power, there are three types: electric driven, hydraulic driven and diesel engine driven. According to the drive types, there are L-drive bow thruster and Z-drive bow thruster.

Bow thruster provide thrust to the vessel to move sideways. Bow thruster are divided into: controllable pitch bow thruster(CP), fixed pitch bow thruster(FP), contra-rotating propeller bow thruster, single propeller bow thruster and retractable bowthruster.

From the design stage to dispatch, our internal quality assurance systems fully comply with marine class standard. In addition, third- party surveyors will check the process of  design and fabricating to ensure the marine winch complies with all relevant specifications.

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Features
1. Type:Controllable-pitch and Fixed-pitch propeller type.

2. Installed transversely in the bow or stern of a vessel.

3. High efficiency and endurance.

4. Driven force: electrical, hydraulic  and diesel engine.

5. Suitable for various kinds of vessel such as Transportation vessel, tugboat, ocean engineering vessel, ro/ro ship, cargo liner.

6. Underwater structure are convenient for maintenance and repairing.

7. All products are designed and manufactured according to client's drawing or sample.

8. Increase the operation flexibility of the vessel.

9. Certificate: BV, CCS, GL, ABS, LR, RINA, DNV, RMRS...

Marine Tunnel Thruster System

Drawing of Marine Tunnel Thruster

Technical Parameters

	CTT010		CTT060		CTT160		CTT550		CTT1010
Min-1	1470	1170	1470	1170	1470	1170	1470	1170	1170	970
Hz	50	60	50	60	50	60	50	60	60	50
KW/h.p.	63/86	50/68	125/170	100/136	280/380	280/380	900/1224	725/986	1250/1700	1000/1360
KN	9.5	7.9	17.5	14.5	42	42	125	110	183	155
mm	1000		1000		1500		2000		2500
mm	12		12		20		20		20
mm	500		630		1000/1100		1750		2100
Kg	300		430		1450		2680		3200

Propeller Dia.	Input power max.	Frequency	Input rpm	Zero pitch torque max	rotating inertia	weight
Φ.mm	KW	HZ	rpm	NM	Kgm2	tunnel device	Motor＆starter
1100	320	50	1450	160	1.2	1300	850
	380	60	1750	220
1300	445	50	1450	340	1.9	2500	1300
	480	60	1750	470
1650	590	50	1450	340	4.5	3700	2300
	800	60	1750	500
2800	2240	50	980	3935	65	20500	5000
	2010	60	880	3300
2300	3500	50	590	5600	358	31000	6000
	3500	60	590	5600

Drive Types of Marine Tunnel Thruster

Marine Tunnel Thruster in Factory