Hangzhou Advance Gearbox Group Co., Ltd.

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An industry leader specializing in the design and manufacturing of gear transmission devices and powder metallurgy products.

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Tunnel Thruster

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Tunnel Thruster

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Tunnel Thruster

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Product Details

Description & Features：

Fixed pitch propeller thruster (TF Series) is usually driven by variable-frequency motor, and used with the equipment having a Variable Frequency Drive (VFD). The VFD is used to control the speed and direction of the motor, thereby controlling the thrust magnitude and direction of the thruster. The TF series thruster is typically used for small ships in dry dock and also applied to some scientific research vessels with low-noise requirements.
Controllable pitch propeller thruster (TC Series) has blades that usually operate at a constant speed, and the thrust magnitude and direction are adjusted by controlling the pitch. The TC series thruster is particularly suitable for dynamic positioning of ships or integrated maneuvering control systems. By integrating the control of propellers, thrusters and rudders, the control can be realized through a single joystick (joystick system).
The company's thrusters are mainly used for the operation of offshore working ships. To meet the needs of ships working near drilling platforms—including higher mechanical strength, reliable control systems and maximum safety factors—HAGG thrusters have the following characteristics:
Gears: Bevel gears with Klingelnberg tooth system, made of chrome-nickel steel.
Controllable pitch propeller hub: Integral cast hubs with fewer components, large piston diameter, high reliability and low operating oil pressure.
Bearings: Radial and axial loads are borne by separate bearings, which improves the stability of the thruster.
Sealing: Double seal rings between the duct and gear pod enhance water sealing performance; the top seal of the pinion shaft is equipped with a backup seal, which effectively reduces the possibility of leakage.
Feedback: Linkage rod-type feedback with linear feedback transmitters, providing better load impact resistance.

Parameters：

To meet the noise level requirements specified in the latest IMO regulations for ships to the maximum extent, we have incorporated special considerations into the gear design: gear noise is effectively reduced through a dedicated gear ratio. For the propeller blade design, moderate skew and an appropriate rake angle are adopted to minimize blade vibration; meanwhile, we strictly control the blade tip speed to not exceed 34 m/s, so as to better suppress tip cavitation of the blades. In addition, the smooth hydrodynamic lines of the thruster lower housing and hub are designed to address the issue of hub cavitation on the blades.

Tunnel Thruster Range

Model	BladeSize(mm)	Power kW (max) (50Hz) at Dock	Motor Speed(RPM)	Motor Frequency(Hz)	Calculate Thrust(kN)
TF035	350	30	1470	50	5
		37	1470	50	5.8
		45	1780	60	6.6
TF040	400	45	1470	50	7.2
TF040	400	55	1780	60	8.2
TF050	500	55	1470	50	9.6
TF050	500	75	1470	50	11.8
TF060	600	90	1470	50	15
		90	1780	60	15
		110	1470	50	17
TF070	700	110	1780	60	19
		132	1470	50	21.5
		160	1470	50	24.4
		160	1780	60	24.4
TF080	800	185	1470	50	29.4
TF080	800	200	1470	50	30.9
TF090	900	200	1780	60	33.5
		220	1470	50	35.7
		250	1470	50	38.8
		250	1780	60	38.8
TF100	1000	280	1470	50	45
TF100	1000	280	1780	60	45
TF110/ TC110	1100	315	1470	50	51.8
		315	1750	60	51.8
		355	1470	50	56
TF120/ TC120	1200	400	1470	50	64.4
		400	1780	60	64.4
		450	1780	60	69.6
TF130/ TC130	1300	450	1470	50	73.4
TF130/ TC130	1300	500	1780	60	78.8
TF150/ TC1150	1500	500	1470	50	86.7
		560	1470	50	93.5
		630	1780	60	101
TF165/ TC165	1650	630	1470	50	108
		710	1470	50	116
		800	1780	60	126
TF180/ TC180	1800	800	1470	50	134
		850	1470	50	140
		900	1160	60	145
TF200/ TC200	2000	900	980	50	155
		1000	1160	60	166
		1150	1160	60	183
		1250	1470	50	193
TF220/ TC220	2200	1300	980	50	211
		1400	1160	60	222
		1550	1160	60	238
TF240/ TC240	2400	1550	980	50	252
TF240/ TC240	2400	1800	1160	60	278
TF260/ TC260	2600	1800	900	50	294
TF260/ TC260	2600	2000	980	50	315
TF280/ TC280	2800	2000	880	60	330
TF280/ TC280	2800	2250	980	50	358
TF300/ TC300	3000	2500	730	50	400
TF300/ TC300	3000	2800	880	60	430
TF330/ TC330	3300	2800	730	50	460
TF330/ TC330	3300	3150	880	60	500

Application scenarios:

The TC/TF series lateral thrusters can be used on large vessels for maneuvering in narrow waterways or ports—enabling sharp turns and efficient docking and undocking—and also enhance a ship’s overall maneuverability. Additionally, they are well-suited for dynamic positioning applications.