Thrusters

SEP25 PRO Tunnel bow thruster, 12V

25kg variable thrust

  • S-Link™

    S-Link™ is a CAN-based control system with full intelligent communication between all units in the system, much like a computer network.

    • Round, compact and waterproof connectors with unique keying and color coding to avoid faulty hookup
    • Unlimited number of commands or information transferred on a single cable
    • User feedback on the panel
    • Intelligent troubleshooting
  • PRO - Variable Speed Control

    A PRO thruster system with variable speed control allows for more precise handling of the boat in all conditions, applying only the necessary power needed to complete your maneuver confidently.

    By limiting the power under normal weather conditions, noise levels are significantly reduced. The system also includes a practical hold-function in a twin thruster system. With a single press of a button, the bow and stern thruster will keep you alongside the docks - making docking truly a one-person job. PRO thrusters are the best choice for joystick interaction.

    A PRO system contains three main elements - a control panel, a power control unit, and a DC electric thruster - all tied together with the S-link™ control system. All mechanical and main electric parts are from the well-proven thruster range produced by Sleipner for many years.

    All of Sleipner's 12 and 24 volt DC electric thrusters can be enabled for variable speed control by authorized Sleipner service personnel, even past models.

  • Galvanic separation

    The gearhouse / drive legs of most Sleipner DC Electric thrusters are now fully galvanically isolated / separated from the electric motor and motor bracket. This ensures that even if there is an accidental short circuit or a current leak for other reasons, the immersed parts are not effected as they could be with direct electric contact.

    • Achieved by composite bushings around the bolts and beneath the washers and a bushing in the motor bracket electrically isolating the drive housing from the motor bracket.
    • Available on DC electric models with flexible couplers only, where the flexible coupler provides galvanic separation of the motor and gearleg shaft.
  • Sealed drive lubrication

    Sealed gearleg with long-life "mechanical" seal where highly polished ceramic and carbon surfaces form the only moving sealing surfaces, ensuring protection against damaging water intrusion into the gear leg. Pre-filled with special gear oil for lifetime lubrication.

    • "Mechanical" seals with surfaces of ceramic and carbon for ultimate security against water intrusion
  • Single propeller

    A properly engineered single propeller system will be the most energy efficient thruster. Its compact design fits easily into narrow bows making it the perfect match for our smaller models. With more than 60.000 single propeller thrusters in use, the Sleipner single series system has proven its reliability.

  • Q-propeller

    The new 5 blade special skew propellers are the result of over 2 years of development work and thousands of tests. They have been designed to reduce the noise level, while maintaining the exceptional efficiency of the old 4 blade Sleipner propellers. This goal was achieved, and we even chose to make them a little bit more aggressive on some models, increasing the thrust on some thrusters about 5%. Please see individual information on each new thruster for more details.

    • Noise reductions of up to 75% measured in controlled environments
    • The expected and tested normal noise reduction in average installations: 20-40%
    • Will be delivered on all Sleipner models except models with 300 mm and 385 mm tunnel diameter
    • Upgrade kits are available for most SP series thrusters with special adaptors
  • Intelligent power control

    The Sleipner unique thruster controller that intelligently protects the thruster from potential inherent problems in all high current applications as well as user faults. It includes several important safety features imperative in a product with such high power, run by DC electrics, as a thruster.

    • Provides delay between drive directions
    • Monitors solenoid functions to reduce the chance of solenoid lock-in
    • Will stop the thruster in case of a lockedin solenoid, without extra user action and even without controlling a main switch.
Item code: SEP25/110S
EAN: 7070969024273

The SEP25 is a compact thruster with variable speed control designed to fit a tunnel of only Ø100 mm. SEP25 is suitable for vessels up to 24 feet depending on the vessel's windage area. Only available for bow installation. 

As with all the other thruster models in Sleipner's tunnel series, the SE25 offers tremendous installation flexibility, as it can be installed upon the tunnel at any angle and the thruster motor can be rotated on the motor bracket in 90 degrees steps.

The SE25 is galvanic insulated and features Sleipner's patented IPC technology for intelligent power control and safety. See more of the product features below. 

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Properties

S-Link™

S-Link™ is a CAN-based control system with full intelligent communication between all units in the system, much like a computer network.

  • Round, compact and waterproof connectors with unique keying and color coding to avoid faulty hookup
  • Unlimited number of commands or information transferred on a single cable
  • User feedback on the panel
  • Intelligent troubleshooting

PRO - Variable Speed Control

A PRO thruster system with variable speed control allows for more precise handling of the boat in all conditions, applying only the necessary power needed to complete your maneuver confidently.

By limiting the power under normal weather conditions, noise levels are significantly reduced. The system also includes a practical hold-function in a twin thruster system. With a single press of a button, the bow and stern thruster will keep you alongside the docks - making docking truly a one-person job. PRO thrusters are the best choice for joystick interaction.

A PRO system contains three main elements - a control panel, a power control unit, and a DC electric thruster - all tied together with the S-link™ control system. All mechanical and main electric parts are from the well-proven thruster range produced by Sleipner for many years.

All of Sleipner's 12 and 24 volt DC electric thrusters can be enabled for variable speed control by authorized Sleipner service personnel, even past models.

Galvanic separation

The gearhouse / drive legs of most Sleipner DC Electric thrusters are now fully galvanically isolated / separated from the electric motor and motor bracket. This ensures that even if there is an accidental short circuit or a current leak for other reasons, the immersed parts are not effected as they could be with direct electric contact.

  • Achieved by composite bushings around the bolts and beneath the washers and a bushing in the motor bracket electrically isolating the drive housing from the motor bracket.
  • Available on DC electric models with flexible couplers only, where the flexible coupler provides galvanic separation of the motor and gearleg shaft.

Sealed drive lubrication

Sealed gearleg with long-life "mechanical" seal where highly polished ceramic and carbon surfaces form the only moving sealing surfaces, ensuring protection against damaging water intrusion into the gear leg. Pre-filled with special gear oil for lifetime lubrication.

  • "Mechanical" seals with surfaces of ceramic and carbon for ultimate security against water intrusion

Single propeller

A properly engineered single propeller system will be the most energy efficient thruster. Its compact design fits easily into narrow bows making it the perfect match for our smaller models. With more than 60.000 single propeller thrusters in use, the Sleipner single series system has proven its reliability.

Q-propeller

The new 5 blade special skew propellers are the result of over 2 years of development work and thousands of tests. They have been designed to reduce the noise level, while maintaining the exceptional efficiency of the old 4 blade Sleipner propellers. This goal was achieved, and we even chose to make them a little bit more aggressive on some models, increasing the thrust on some thrusters about 5%. Please see individual information on each new thruster for more details.

  • Noise reductions of up to 75% measured in controlled environments
  • The expected and tested normal noise reduction in average installations: 20-40%
  • Will be delivered on all Sleipner models except models with 300 mm and 385 mm tunnel diameter
  • Upgrade kits are available for most SP series thrusters with special adaptors

Intelligent power control

The Sleipner unique thruster controller that intelligently protects the thruster from potential inherent problems in all high current applications as well as user faults. It includes several important safety features imperative in a product with such high power, run by DC electrics, as a thruster.

  • Provides delay between drive directions
  • Monitors solenoid functions to reduce the chance of solenoid lock-in
  • Will stop the thruster in case of a lockedin solenoid, without extra user action and even without controlling a main switch.