TUNNEL THRUSTER

SWIFT Tunnel Thrusters are classified as Controllable Pitch Propellers (CP) and Fixed Pitch Propellers (FP).

Intruducing the technology of KAMEWA of Sweden and SCHOTTEL of Germany,the products have been approved by CCS and another international classification societies and have been successfully installed on the ships for export.

The Tunnel Thruster is usually driven by an electric motor, or any type of high speed diesel engine or hydraulic motor.

	Usual Tunnel Thruster (CP) Construction
	1.drive shaft assembly with bevel gear pinion. 2.Mechanical feed back 3.Oil transmission pipe 4.Bevel gear wheel 5.Propeller shaft assembly 6.Crank pin ring 7.Crosshead with sliding shoes 8.Actuating piston 9.Blade sealing

	Remote control system
	A. Bridge B. Tunnel thruster compartment 1. Bridge control panel 2. Centrol control unit 3. Pitch transmitter 4. Tunnel thruster unit 5. Flexible coupling 6. Drive motor 7. Drive motor starter with built-in load sensing device 　 8. Hydraulic unit with eletric pump and control valve 　 9. Gravity tank

Propeller DIA mm	KW(Max.)	HZ	RPM	Torque *** (in Zero pitch) Nm(Max.)	Inertia * kgm²	Weight(APRX) kg
						TT unit **	Motor & starter
1100	258	50	1450	160	1.2	1300	850
	350	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
2000	880	50	1450	840	11.3	6250	3300
	1200	60	1190	570
2400	1580	50	980	2270	28.8	12500	4500
	1720	60	1190	3050
2800	2240	50	980	3935	65.0	20500	5000
	2010	60	880	3300
3300	3500	50	590	5600	358.0	31000	6000
	3500	60	590	5600
* for input shaft ; not including Motor & starter ; * for input shaft at 100% rotate speed

FP Tunnel Thruster
Type	input			Thruster	Cylinder		Propeller Diameter mm	Weight kg
	RPM Max.	HZ	KW/HP Max.	KN Max.	Length mm	Thickness mm
STT010	1470	50	63/86	9.5	1000	12	500	300
	1170	60	50/68	7.9
STT060	1470	50	125/170	17.5	1000	12	630	430
	1170	60	100/136	14.5
STT110	1470	50	200/272	28	1000	15	800	730
	1170	60	200/272	28
STT170T	1770	60	315/428	44	1500	20	1000	1450
	1470	50	315/428	44
STT170	1470	50	350/476	50	1500	20	1100	1510
	1170	60	280/381	42
STT330T	1770	60	500/680	70	1500	20	1250	2450
	1470	50	500/680	70
STT330	1470	50	550/748	84	1500	20	1500	2680
	1170	60	450/612	73
STT550	1470	50	900/1224	125	1500	20	1750	5400
	1170	60	735/1000	107
STT1010	1770	60	1250/1700	183	2000	25	2100	8700
	970	50	1000/1360	155
Contollable Pitch Propeller can also be equipped for types above STT170T.