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Specification — 72V 3000W

72V 3000W Brushless DC Motor For Large EVs, Electric Boats And Heavy-Duty Industrial Equipment.

3000W at 72V represents serious electric traction power — equivalent to a 4 HP combustion engine but with instant torque from standstill, zero emissions and near-silent operation. This power class drives full-size electric vehicles, propels commercial workboats and replaces small diesel motors in industrial equipment. At 42A rated current, the electrical system uses standard industrial-grade components without special high-voltage precautions. Shenghe manufactures 72V 3000W BLDC motors in 130mm and 150mm stator frames with heavy-duty planetary gearboxes rated for continuous industrial operation.

  • Rated voltage 72V DC (60V–84V operating range)
  • 3000W continuous rated power, 5000W peak
  • Heavy-duty planetary and worm gearbox options
  • Hall sensor + encoder standard for precision control
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Why 72V 3000W

Benefits Of The 72V 3000W Power Class

  • 4 HP equivalent — replaces small gasoline and diesel engines in many applications
  • 5000W peak power for acceleration, hill climbing and high-inertia startup loads
  • 42A rated current — industrial-grade connectors and 10AWG wiring sufficient
  • 130–150mm frame offers exceptional torque density for the weight (8–12 kg motor)
  • Full torque from zero RPM eliminates clutch, torque converter and gearbox complexity
  • Field weakening extends usable speed range to 150% of base RPM for highway-capable EVs

72V 3000W Motor Specifications

ParameterValue
Rated voltageDC 72V (60–84V)
Rated power3000W (5000W peak)
No-load speed3000 – 4000 RPM
Rated torque (motor)9.0 – 10.5 Nm
Gear ratio options5:1 – 30:1
Output torque (geared)Up to 280 Nm
ProtectionIP54 standard, IP65 optional
FeedbackHall sensor + 1000-line encoder standard

Common Applications For 72V 3000W BLDC Motors

  • Large electric vehicles: Multi-passenger sightseeing buses, enclosed delivery vans, airport ground support vehicles up to 1200 kg
  • Electric boat propulsion: Commercial fishing boats, patrol vessels and passenger ferries in the 5–8m range at 8–12 knots
  • Heavy-duty industrial drives: Large conveyor systems, industrial centrifuges, commercial grain mills and pellet presses
  • Electric forklifts and stackers: 2–3 ton capacity electric forklifts — both traction and hydraulic pump motors
  • Diesel engine replacement: Retrofitting generator drives, water pumps and compressors from diesel to electric power
  • Amusement and recreation: Go-kart drives, bumper car motors and small amusement ride propulsion systems

Technical Details For Integration

  • Battery sizing: 20S Li-ion 60Ah+ or 24S LiFePO4 80Ah; pack must support 60A+ continuous discharge
  • Controller requirements: 72V/60A FOC controller with field weakening, regenerative braking and CAN bus interface
  • Thermal management: Class H (180 °C) insulation recommended; forced-air or liquid cooling for continuous duty above 2500W
  • Mounting: IEC B5 flange with centering spigot; foot mount with anti-vibration pads; custom vehicle chassis adapter plates
  • Shaft options: 25mm keyed standard; splined, hollow and marine propeller taper configurations available
  • Operating temperature: -20 °C to +50 °C ambient; liquid-cooled version rated to +55 °C continuous

Need A 72V 3000W Brushless Motor?

Tell us your vehicle gross weight, boat hull specifications or industrial machine duty cycle. We will design the complete 72V 3000W powertrain — motor, gearbox, controller and thermal solution. Custom windings, shaft configurations and IP ratings available. Quote within one working day.

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