Marine Electrical Stern Tunnel Thruster - Electric Tunnel Thruster - Hi-sea

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Marine Electrical Stern Tunnel Thruster

Marine Electrical Stern Tunnel Thruster




Application

A marine electrical stern tunnel thruster is a type of propulsion system used in ships and boats to provide additional maneuverability and control. It consists of an electric motor that drives a propeller mounted in a tunnel at the stern of the vessel, perpendicular to the direction of travel. The tunnel surrounding the propeller in the stern thruster provides additional benefits, including protection of the propeller from debris and minimizing the impact of the propeller on water flow, which can increase efficiency and reduce noise and vibration. Electrical stern tunnel thrusters are controlled using a joystick or a computerized system, which allows for precise and smooth maneuvering of the vessel. They can also be integrated with other ship systems, such as GPS and autopilot, to provide seamless operation.

Features

1.Low noise and vibration.

2.Propeller type: Fixed-pitch propeller,Controllable-pitch propeller.

3.Skew blade and large disk ratio, reduce vibration and improve cavitation performance.

4.Underwater structure are optimized so that it have rational construction, which convenient for maintenance and repairing.

5.We can design and manufacture the product according to client's drawing or sample.


We not only provide customers with high-quality products, but also provide complete system solutions and added services for specific customers. Therefore, There are  high competitiveness.

Configuration options

Part Name

Type/Material

Advantages/Disadvantages

Electric Motor Type

HENGLI and LANHAI brand

Good quality, cost-effective, long service life. Self-contained brake, high safety.

Other brands

High power consumption, relatively poor quality.

ABB/WEG/Siemens

Good quality, high cost, long delivery time.

Propeller

Ni-Al-Bronze (Cu3)

Excellent comprehensive mechanical properties and corrosion resistance.

Ni-Mn Bronze (Cu2)

High strength, good hardness, good wear resistance, good elasticity, no spark, corrosion resistance, non-magnetic, excellent cold working performance, excellent electroplating and welding performance.

Manganese Bronze (Cu1)

It has high strength, hardness and good plasticity, can well withstand pressure processing in hot and cold states, has good corrosion resistance, and has high thermal strength.

Stainless Steel

Good corrosion resistance, high hardness.

Tunnel

WANXIANG / HONGBO

Corrosion resistance, good quality, cost-effective

Due to the fierce market competition, the phenomenon of low quality of other winch suppliers is frequent. What is the difference between us and other low-quality suppliers?

The specific differences are as follows:

Part name

Other low quality suppliers

Result

Our factory

Consequence

Electric Motor Type

Other brands

High power consumption, relatively poor quality.

HENGLI or LANHAI brand

Cost-effective, good quality. Self-contained brake, high safety.

Propeller

Cast iron

Easy to corrode, easy to rust

Stainless steel

Good corrosion resistance, high hardness

Manganese Bronze (Cu1)

It has high strength, hardness and good plasticity, can well withstand pressure processing in hot and cold states, has good corrosion resistance, and has high thermal strength.

Brass

Dezincification is easy to occur in seawater, resulting in cavitation corrosion and affecting navigation safety.

Ni-Mn Bronze (Cu2)

High strength, good hardness, good wear resistance, good elasticity, no spark, corrosion resistance, non-magnetic, excellent cold working performance, excellent electroplating and welding performance.

Ni-Al-Bronze (Cu3)

Excellent comprehensive mechanical properties, resistance to stress corrosion cracking, corrosion fatigue resistance, cavitation corrosion resistance, erosion resistance, marine biofouling resistance. After heat treatment, it can reach the level of duplex stainless steel. Compared with brass, the corrosion resistance is three times that of brass, and the wear resistance is twice that of brass.

Tunnel

Other brands

Easy to corrode, relatively poor quality

WANXIANG / HONGBO

Corrosion resistance, good quality, cost-effective

Drawing of Marine Electrical Stern Tunnel Thruster

Main 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

Maintenance advice

1. Regularly check whether there is leakage of hydraulic oil in the side thruster of the ship, regularly add tallow to the moving bearings and couplings, and replenish the hydraulic oil of the system in time.

2. Clean the dust in the ship's thruster control panel in time and check the working condition of the ACB.

If the ACB fails to close there are several reasons:

2.1. The control circuit has no electricity;

2.2. The main switch energy storage motor does not store energy normally;

2.3. There is no closing signal to the main switch closing coil;

2.4. The main switch under voltage coil has no electricity.


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