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Product Introduction
Rim-Driven Shaftless Outboard & Azimuth Thruster Full Introduction
1 Core Design Concept
This series of shaftless rim-driven thrusters (RDT) represents revolutionary marine electric propulsion technology, independently developed by a high-tech & specialized new marine equipment enterprise. Abandoning traditional drive shafts, gearboxes and dynamic sealing structures, it integrates permanent magnet rim motor, hubless propeller, water-lubricated bearing and energy-saving duct into one compact unit.
All R&D and production are supported by professional hydrodynamic test tanks, high-pressure underwater simulation labs and full-load test berths, with over 100 proprietary patents covering fluid simulation, motor control and anti-corrosion marine structure. The full power spectrum ranges from small 2kW leisure models up to 200kW heavy-duty azimuth thrusters, covering all vessel types from small yachts to large engineering, scientific research and official ships.
It balances ultra-high efficiency, ultra-low noise, zero oil leakage environmental protection and full customized engineering capability, fully compliant with CCS marine survey standards and global green ship requirements.
2 Core Performance & Technical Advantages
2.1 Ultra-High Propulsion Efficiency
Eliminate gear & shaft friction loss, propulsion efficiency increases by 10%–20% versus conventional outboards. Streamlined energy-saving duct generates extra thrust, cutting overall power consumption for long-distance navigation. Light integrated structure reduces unit weight by nearly 50%, releasing more onboard cabin storage space.
2.2 Ultra-Low Vibration & Silent Operation
No gear meshing noise or shaft vibration; underwater radiated noise drops by up to 30dB. Hubless propeller removes blade tip clearance cavitation noise, perfectly fit noise-sensitive scientific observation vessels, luxury yachts and ecological sightseeing boats without scaring marine organisms.
2.3 Zero Oil Leakage & Eco-Friendly
Adopt full water-lubricated bearing system, no lubricating oil inside the thruster. Zero risk of oil spill into seawater, fully meets international inland river, coastal marine environmental protection regulations, ideal for scenic lagoons, marine reserves and floating leisure platforms.
2.4 Excellent Anti-Winding Performance
Closed annular duct structure blocks fishing nets, water weeds and floating debris, reducing winding failure rate by over 95% for aquaculture boats and weedy inland waterways. Continuous long-duration operation only generates tiny power attenuation.
2.5 Full Azimuth Maneuverability
Support 360° full rotation vector thrust design. Vessels can turn in-situ, move sideways and berth precisely without extra side thrusters. Tilt-up mechanism optional for shallow beach navigation and convenient on-land maintenance.
2.6 Complete Power & Customization Coverage
Full model range: 2kW /15kW /30kW /85kW /110kW /200kW. Two installation types: transom hanging outboard for small vessels, flange-mounted azimuth thruster for large engineering ships. Optional DP dynamic positioning linkage system, explosion-proof structure and deep-sea high-pressure reinforced design for special marine missions.
2.7 Mature Certification & Engineering Qualification
All models obtain complete CCS type approval, fishery vessel inspection certificates. Mass delivered to scientific research vessels, municipal ferries, maritime patrol crafts and large floating club platforms with abundant high-end project reference cases.
3 Wide Application Scenarios
3.1 Scientific Research & Observation Vessels
Ocean survey ships, underwater acoustic research vessels, coral ecological observation crafts. Ultra-low noise design guarantees accurate marine data collection without acoustic interference.
3.2 Official & Municipal Vessels
Maritime law enforcement patrol boats, urban passenger ferries, river sanitation & dredging engineering ships. Stable heavy-load performance and reliable long-shift operation meet government tender standards.
3.3 Luxury Floating Leisure Platforms & Superyachts
Large floating beach clubs (like 48m YONA floating yacht), private superyachts, overwater resort villas. Silent, oil-free operation matches premium resort marine environment requirements.
3.4 Inland Sightseeing & Tourism Boats
River cruise ships, lake sightseeing vessels, eco-tour catamarans. Low noise and zero pollution protect scenic water ecology.
3.5 Aquaculture & Work Boats
Coastal fishing boats, aquaculture work crafts, shallow water service vessels. Closed duct avoids frequent net winding breakdowns.
3.6 Special Engineering Marine Equipment
Offshore auxiliary barges, underwater robot support vessels, sediment treatment crafts, multi-point positioning platform thrusters with optional DP dynamic positioning system.
4 Delivery & On-Site Assembly Solution
Option 1 Small Outboard Shaftless Thruster (2–30kW)
Complete finished unit factory assembled, plug-and-play after simple transom fixing. Standard production lead time: 25–35 working days, full sets of control cables and operating handles included.
Option 2 Medium & Large Azimuth Rim Thruster (85–200kW)
Modular split packaging for 40HQ container shipment, separate thruster body, rotary mechanism and control cabinet. Professional marine engineers can be dispatched to domestic & overseas shipyards for on-site installation, hydrodynamic commissioning and crew operation training. Custom engineering models production cycle: 45–90 working days according to special requirements (DP, explosion-proof, deep sea reinforcement).