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Application — Electric Boat

Brushless Motor For Electric Boat And Marine Propulsion.

Electric boats are replacing combustion engines on lakes, rivers and coastal waters — driven by emission regulations, fuel costs and the demand for silent cruising. A marine-grade brushless DC motor delivers the efficiency, corrosion resistance and maintenance-free operation that electric propulsion requires. Shenghe builds IP67 BLDC motors for electric outboards, trolling motors, kayak drives, small ferries and solar-powered boats from 200W to 3000W on 24V to 72V battery systems.

  • 24V / 48V / 72V lithium battery compatible
  • IP67 sealed, marine-grade corrosion protection
  • 90%+ efficiency for maximum range per charge
  • Water jacket cooling option for continuous duty
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Why BLDC For Marine Propulsion

What Makes Brushless Motors The Right Choice For Electric Boats

  • 90%+ efficiency maximizes range per battery charge
  • No brush wear — zero motor maintenance in hard-to-access hulls
  • Silent operation for fishing, wildlife tours and residential waterways
  • IP67/IP68 sealing handles splash, spray and submersion
  • No fuel, no exhaust — compliant with inland waterway emission rules
  • Regenerative braking recovers energy during deceleration and sailing

Typical Marine Motor Spec Range

ParameterRange
VoltageDC 24V / 48V / 72V
Rated power200 W — 3000 W
Motor speed500 — 3000 RPM
Torque2 Nm — 50 Nm (direct drive)
ProtectionIP67 / IP68
Shaft materialStainless steel 316L
CoolingWater jacket or sealed air
BearingCeramic hybrid or sealed stainless

Typical Marine Use Cases

  • Electric outboard: Direct-drive or geared pod motors for retrofit and OEM outboard propulsion units up to 10 HP equivalent
  • Trolling motor: Low-speed, high-efficiency motors for fishing boats with variable-speed foot or wireless control
  • Kayak and canoe motor: Lightweight 200-500W motors for recreational paddlecraft with transom or pod mounting
  • Small ferry and water taxi: 1-3 kW propulsion for passenger ferries, water taxis and harbor shuttles
  • Solar boat: Ultra-efficient motors for solar-powered craft where every watt of panel output counts
  • Sailboat auxiliary: Compact electric auxiliary propulsion replacing diesel saildrive units
  • Underwater ROV: Thruster motors for remotely operated vehicles used in inspection and research

Marine Engineering Details

  • Stainless 316L shaft: Resists pitting corrosion in saltwater and brackish environments
  • Epoxy-potted stator: Complete encapsulation of windings prevents moisture ingress and vibration fatigue
  • Sacrificial anode: Zinc anode on housing provides cathodic protection in salt and brackish water
  • Water jacket cooling: Seawater or closed-loop coolant channel around stator for continuous high-power duty
  • Ceramic hybrid bearings: Silicon nitride balls eliminate galvanic corrosion between races
  • Conformal-coated electronics: Hall sensors and encoder boards protected against salt fog and condensation

Motor For Your Electric Boat?

Send us your hull type, target speed, battery voltage and propeller size. We recommend a marine-grade BLDC motor matched to your propulsion system and quote within one working day. Or request the catalog to evaluate the full marine drive range.

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