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 16.48kg, 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 Instant 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

Model WJ20
Energy Type Electric
Voltage Range DC90V-DC118V
Current Range 170-222 A
Rated Power 20 KW
Gasoline Equivalent 25 HP
Speed Range 3000-9500 rpm
Control System Throttle Lever / Throttle Pedal
Communication 485 / CAN / buletooth
Operating Env. / Storage Env. 20℃ ~ 50℃ (68℉ ~ 122℉)
Cooling Method Water Cooling
Ingress Protection (IP) IP67
Weight 16.48 KG
Dimensions(Length * Diameter) 635.5 X 108(mm)

Supported Battery Specifications

Battery Model L9680
Battery Type NMC Lithium Battery
Nominal Capacity 80 AH
Rated Energy 7.7 KWH
Operating Voltage Range DC90V-DC118V
Continuous Discharge Current 225 A
Dimensions (WHL) 400mm X 200mm X 420mm
Charger Specifications 120V 25A
Battery Weight 38 kg
Charging Time 3.5H

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