WJ Series Electric Water Jet

WJ Series Electric Water Jet is a compact and lightweight electric waterjet propulsion system developed by Kunpeng Power. Based on a mature structural design and long-term market validation, the WJ Series has become one of our most widely adopted solutions. The WJ series is specifically designed for electric surfboards, kart boats and other compact watercraft, offering fast acceleration, stable output and high system reliability. It is an ideal choice for customers seeking a balanced solution between performance, stability and cost efficiency.

our Advantages

Ultra-Lightweight

Weighing just 10kg, the system can be fully assembled in as little as 30 minutes, significantly improving installation efficiency and getting you on the water faster.

2-Second Rapid Response

Powered by low-inertia direct-drive technology, the system reaches full speed in just 2 seconds, delivering ultra-responsive, smooth, and linear acceleration.

Intelligent System Protection

Equipped with comprehensive built-in protection, including real-time monitoring of speed, current, communication, and battery health to ensure safe, stable, and reliable operation at all times.

Superior Protection & Corrosion Resistance

Rated IP67 and built with an industrial-grade stainless steel body, the system is engineered to withstand harsh marine environments—delivering reliable performance even under extreme seawater conditions.

Multi-Voltage Compatibility

Seamlessly compatible with a wide range of battery systems, offering maximum flexibility for custom integrations and scalable deployments, perfect for both tailored upgrades and large-scale applications.

Stable Heat Dissipation

Maintains stable working temperature even under continuous high-load conditions to extend service life.

Technical Specifications

ModelWJ8
Energy TypeElectric
Voltage RangeDC40V-DC90V
Current Range90-200 A
Rated Power8 KW
Gasoline Equivalent11 HP
Speed Range3000-5500 rpm
Control SystemThrottle Lever / Throttle Pedal
Communication485 / CAN / buletooth
Operating Env. / Storage Env.20℃ ~ 50℃ (68℉ ~ 122℉)
Cooling MethodWater Cooling
Ingress Protection (IP)IP67
Weight10 KG
Dimensions(Length * Diameter)545.5 X 108(mm)

Supported Battery Specifications

Battery Model L6058
Battery Type NMC Lithium Battery
Nominal Capacity 58 AH
Rated Energy 3.5 KWH
Operating Voltage Range DC48V-DC68V
Continuous Discharge Current 225 A
Dimensions (WHL) 365mm X 135mm X 410mm
Charger Specifications 70V 15A
Battery Weight 22 kg
Charging Time 4 H

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