Sleipner’s tunnel thrusters are the world’s top-selling thrusters resulting from over 35 years of development. Over the years, our tunnel thrusters have been installed in over 350,000 boats worldwide.
Bow and stern thruster
They are fitted either in a tunnel through the boat’s bow or into a stern tunnel at the boat’s stern. Available as standard version (on/off), PRO™ version (variable speed control), and IP PRO™ version (with ignition protection and variable speed control), extending from 20 kg to 300 kg of thrust.
Sleipner’s stern tunnels are designed with solid and durable fiberglass to enhance the thruster’s performance and are installed effortlessly in the boat’s transom. Additional cowls (sold separately) allow installation in boats with shallow drafts or obstructions on the stern.
The electric motors, solenoids, patented IPC control system, and mechanical parts of the propulsion system are all custom designed and built – utilizing the extensive experience gained through years of leadership in the global thruster market.
Docking has never been easier
Our PRO™ thruster models are equipped with speed control, giving you full variable control of the thruster. The speed control is more intuitive for you as a boater and makes for a quieter and more relaxed maneuver. If you install a dual thruster system (bow and stern), you get the revolutionary hold function, pinning the boat to the pier while docking.
Ignition protection
We offer ignition-protected thruster models to provide a reliable and safe installation in locations where the thruster motor may be exposed to water or gasoline fumes.
An additional advantage is that electric parts that could obtain water damage are also covered and protected, making these thrusters the ideal choice for stern thruster installations where ensuring that the thruster will always remain dry is difficult. The IP versions have all the benefits and proven reliability of our standard tunnel thrusters.
Features & Properties
S-Link™ is a CAN-based control system used for communication between Sleipner products installed on a vessel.
- Compact and waterproof plugs
- Keyed and color-coded connectors to ensure correct and easy installation
- Different cable lengths, extenders and T-connectors makes the system scalable and flexible to install
The Q-PROP™ has measured noise reductions of up to 75% in controlled environments. The five-bladed skew propeller reduces noise levels while maintaining exceptional efficiency. Some thruster models even see an increase in thrust power.
- The expected noise reduction in average installations: 20-40%
- Upgrade kits are available for most Sleipner thruster models with special adaptors
A PRO™ thruster system enables you to apply only the necessary power to complete your maneuver. The variable speed control eliminates the noise associated with standard on/off thrusters.
The system also includes a practical hold-function. In a dual system (bow and stern) a single press of a button will keep you alongside the docks – making docking truly a one-person job.
Speed controlled thrusters are the best choice for joystick interaction.
…more
- Sleipner’s patented intelligent power control provides a minimal delay between drive directions to reduce wear of the mechanical parts while monitoring solenoid functions. In the case of a solenoid lock-in, the thruster will automatically stop without extra user action or controlling the main switch.
- When high temperatures are detected, On/off thrusters are automatically shut off to prevent overheating. PRO™ thrusters with speed control provide extended run-time by derating power to maintain temperature within safe levels.
- Sleipner offers installation flexibility to work with the space you have. Our thruster models allow installation at any angle on the tunnel, tailored to fit any space available in your vessel.
- Immersed parts exposed to seawater are galvanic isolated from the onboard electrical system, eliminating stray currents.
- The thruster gearleg is pre-filled for lifetime lubrication and sealed using a long-time mechanical seal with ceramic and carbon surfaces for ultimate security against water intrusion.
- Flexible coupling protects the product’s driveline by compensating for minor misalignments between the shafts of the thruster motor and gearleg.
- Twin propellers can provide more thrust than a single propeller system in the same tunnel diameter. We use this system in our mid-range models, where high thrust is required in small tunnel diameters. Due to the compact design and high performance, the twin models have become the thrusters of choice among boatbuilders worldwide.
Specifications
Main power | Value |
---|---|
Power supply | 12V DC |
Nominal voltage | 10.5V DC |
Nominal current consumption A | 800A |
Power output at nominal voltage | 6.5kW / 8.7hp |
Recommended fuse A | ANL 500 |
Cold Cranking Amps (CCA) | Value |
---|---|
Minimum battery CCA (DIN) | 750 |
Minimum battery CCA (SAE) | 760 |
Minimum battery CCA (EN) | 680 |
Performance and features | Value |
---|---|
Motor cycle duty | 2 – 3 min. Duty cycle at 20°c (Ambient temperature) |
Thrust ratings | Value |
---|---|
Thrust at 12V | 160kg / 352lbs |
Thrust at 10.5V | 130kg / 284lbs |
Features | Value |
---|---|
Intelligent Power Control | Yes |
Q-Propeller | Yes |
Twin Propellers | Yes |
Sealed Drive Lubrication | Yes |
Galvanic Separation | Yes |
PRO – Variable Speed Control | Yes |
S-Link | Yes |
Flexible Coupling | Yes |
Ceramic Seals | Yes |
Flexible Installation | Yes |
Physical properties | Value |
---|---|
Thruster Series | SE-series |
Dimensions | Value |
---|---|
(H) Height | 398mm / 15.67in |
(L) Length | 250mm / 9.84in |
(W) Width | 296mm / 11.65in |
(ID) Internal Diameter | 250mm / 9.84in |
(WD min.) Minimum Water Depth | 250mm / 9.84in |
(TL min.) Minimum Tunnel Length | 253mm / 9.96in |
(TL) Recommended Tunnel Length | 303mm / 11.93in |
(T min.) Minimum Tunnel Wall Thickness | 7mm / 0.28in |
(T max.) Maximum Tunnel Wall Thickness | 9mm / 0.35in |
(CT) Cable Terminal | M8 |
Stern Thruster Dimensions | Value |
---|---|
H | 297mm / 11.7in |
(L) Internal Length | 352mm / 13.9in |
(+L) Tunnel Length | 345mm / 13.6in |
W | 350mm / 13.8in |
(D) Diameter | 193mm / 7.6in |
(WD) Stern Water Depth | 250mm / 9.8in |
(HT) Maximum Hull Thickness | 56mm / 2.2in |
Installation capability | Value |
---|---|
Bow Capability | Yes |
Stern Capability | Yes |
Tunnel Capability | Yes |
Ideal vessel integration | Value |
---|---|
Typical vessel class | Motor boat, Sail boat |
Typical vessel size | 13-19m / 42-62ft |
Product weight | Value |
---|---|
Net weight | 37kg / 77lbs |
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