25kW Inrunner Electric Motor
The 25kW electric motor is a high-power density inrunner designed for demanding marine and traction applications. Originally developed in-house to power the JetX-100V4 jet thruster, this unit combines high torque output with integrated thermal management for sustained operation under heavy loads.
Technical Overview
Advanced Water Cooling: Features internal cooling channels designed to cool the stator windings directly, maintaining lower surface temperatures on the outer shell during high continuous power output.
Integrated Sensors: Built-in Hall sensor for accurate position feedback and smooth low-speed control, paired with an NTC-10k temperature sensor for thermal monitoring and system protection.
Torque Capabilities: Delivers up to 33 Nm peak torque, providing strong startup response and high dynamic performance.
Technical Specifications
| Parameter | Specification |
| Model Type | 25kW |
| Max Power | 25 kW |
| Continuous Power | 15–20 kW (dependent on water cooling flow and temperature) |
| Max Voltage | 84 V |
| Max Current | 300 A |
| Continuous Current | 230 A |
| Recommended ESC | 300 A / 400 A |
| KV Rating | 120 |
| Poles | 6 (3 pole pairs) |
| Max Torque | up to 33 Nm peak |
| Dimensions | 125 mm x 170 mm |
| Shaft Diameter | 12 mm |
| Shaft Length | 35 mm |
| Cooling Connections | Compatible with 8 mm ID / 12 mm OD tubing |
| Net Weight | 7 kg |
Applications
While engineered specifically for the JetX-100V4 thruster system, the motor’s high torque density, liquid cooling configuration, and standard sensor interfaces make it suitable for custom marine electric drives, small watercraft conversions, and high-power experimental projects.
