Water cooling motor QSD180D‑90 is a high‑performance 72V PMSM mid‑drive motor with hairpin winding design, rated power 20 kW and peak power up to 40 kW.

Equipped with high‑precision encoder and KTY83‑122 thermistor sensor, it adopts liquid‑cooled cooling structure, delivering peak efficiency over 93%. It is ideal power solution for high‑speed electric motorcycle and EV conversion projects.

Key Advantages
✅ Hairpin winding & liquid‑cooled thermal solution
Excellent heat dissipation under continuous heavy‑load operation, effectively suppress power thermal degradation for aggressive riding and high‑speed scenarios.

✅ Precision encoder & temperature monitoring
Encoder provides accurate position feedback; built‑in thermistor monitors internal temperature in real time, supports over‑heat protection for safer operation.

✅ Strong power performance
40 kW peak power and 175 N·m peak torque deliver great acceleration, climbing capacity and high‑speed performance.

✅ IP67 waterproof & Class‑H insulation
Reliable performance under various outdoor working conditions.

✅ Customizable performance
We can customize motor performance according to your project requirements after confirming voltage, torque and current parameters.