Big Motors > SeaDrive (Underwater/Industrial)
The F5085 is a high-performance waterproof brushless motor designed for pool cleaning vessels and marine thrusters. Featuring IP68K-rated epoxy potting and corrosion-resistant construction, it ensures reliable operation in chlorinated/saltwater environments up to 15 meters depth. Optimized for continuous duty cycles with efficient power delivery and minimal maintenance.
| Parameter | Specification |
| Motor Type | 3-Phase Sensorless BLDC |
| Protection Rating | IP68K (15m Depth, 72hrs Submersion) |
| Rated Voltage | 24V-36V DC |
| Continuous Power | 550W @ 24V / 1190W @ 36V |
| Max Thrust | 8.5kgf (Forward) / 4.0kgf (Reverse) |
| Speed Range | 2400-3620 RPM (PWM Adjustable) |
| Resistance | 0.025Ω (Phase-to-Phase) |
| Shaft Diameter | 6mm (316L Stainless Steel) |
| Weight | 680g |
| Mounting Pattern | 35×35mm / 40×40mm |
• Epoxy Potting: Full encapsulation resists chlorine/saltwater corrosion (50,000hrs lifespan)
• Low Vibration: Precision-balanced rotor with <0.5mm dynamic runout
• Smart Control: PWM/RS485 protocol compatibility (±2% speed accuracy)
• High Torque: 14-pole design delivers 1.8Nm continuous torque @24V
• Quick Installation: Integrated M5 threaded shaft with anti-rotation keyway
| Voltage | No-Load Speed | Max Thrust | Current Draw |
| 24V | 2400 RPM | 6.0kgf | 25.5A |
| 36V | 3620 RPM | 8.5kgf | 37A |
*Active cooling required for >80% duty cycle
• Autonomous pool cleaning robots (up to 50m² pools)
• High-flow circulation pumps
• Underwater scrubbing arm actuators
• Dock-cleaning thrusters
• Floating debris collector propulsion
• Solar-powered skimmer drives
• Continuous Operation: 65°C @30°C ambient (passive cooling)
• Thermal Protection: Gradual derating from 75°C, hard cutoff at 95°C
• Certifications: CE, RoHS, ISO 20653 compliant
Note: All data validated in pH 7.0-7.8 pool water. Apply anti-corrosion grease monthly for saltwater use.

