LETUMOTOR 3130 Marine-Grade BLDC Motor — IP67 Waterproof for Submerged UAV & ROV Propulsion
LETUMOTOR 3130 Marine-Grade BLDC Motor — IP67 Waterproof for Submerged UAV & ROV Propulsion - Image 2
LETUMOTOR 3130 Marine-Grade BLDC Motor — IP67 Waterproof for Submerged UAV & ROV Propulsion - Image 3
LETUMOTOR 3130 Marine-Grade BLDC Motor — IP67 Waterproof for Submerged UAV & ROV Propulsion - Image 4

LETUMOTOR 3130 Marine-Grade BLDC Motor — IP67 Waterproof for Submerged UAV & ROV Propulsion

Compact Power for ROV & Underwater Robots. The LETUMOTOR 3130-280KV is an IP68 fully sealed brushless motor engineered for submerged operation — 12N16P, 220°C winding, MR126 bearings, and a compact 205g build for precise, efficient underwater propulsion.

  • Motor Size: Ø37.5 x H54 mm

  • KV: 280 | Voltage: 24V

  • Weight: 205g | Shaft: 6mm

  • Protection: IP68 | Winding: 220°C

  • Magnet: 150°C | Configuration: 12N16P

  • Bearings: MR126 (686ZZ)

  • Dynamic Balance: ≤10mg

Category:

Description

选项二（更短，突出水下定位）： IP68 waterproof drone motor for ROV and underwater robots — LETUMOTOR 3130, 24V, 280KV/170KV, 205g, 12N16P, MR126 sealed bearings 选项三（强调工业可靠性和双KV灵活性）： Subsea brushless motor specifications — IP68 sealed, 24V, dual KV options 280KV/170KV, 220°C winding class, high torque density, designed for long-term underwater operation LETUMOTOR 3130 underwater motor KV selection guide — 280KV vs 170KV comparison, both IP68 waterproof, 24V, 205g, 37.5x54mm, 220°C winding, 150°C magnet, 6mm shaft, for ROV and underwater robot propulsionLETUMOTOR 3130 underwater motor IP68 protection and performance overview — fully sealed, AC500V withstand voltage, 220°C winding, 150°C magnet, 280KV max, 0.17 N·m torque, 24V, 205g, 85% max efficiency, built for ROVs and underwater robotsLETUMOTOR 3130 underwater motor drive design and KV selection — 12N16P smooth rotation, 6mm shaft, 37.5x54mm compact body, 205g, IP68 waterproof, 220°C winding, 280KV and 170KV options with key dimension drawings for ROV integrationLETUMOTOR 3130 underwater motor installation and integration specs — 37.5x54mm, 6mm shaft, 4xM3-D24 prop and motor mounts, PCB solder board output, 205g, IP68 waterproof, designed for easy ROV and underwater robot integrationLETUMOTOR 3130 underwater motor complete specifications comparison — 280KV vs 170KV, both 37.5x54mm, IP68 waterproof, 24V, 205g, 12N16P, 220°C winding, 150°C magnet, AC500V withstand voltage, 686ZZ bearings, ≤10mg dynamic balance, PCB solder board output

Built for Underwater Missions

The LETUMOTOR 3130 series is a compact, IP68 fully sealed brushless motor purpose-built for underwater robots, ROVs, AUVs, and submersible thruster applications. With a 12N16P high-pole configuration, 220°C winding insulation, and precision-balanced rotor, it delivers smooth, efficient, and reliable propulsion in wet and submerged environments.

Key Specifications

Parameter 3130-280KV 3130-170KV
Motor Size Ø37.5 x H54 mm Ø37.5 x H54 mm
Stator Size Ø31 x H30 mm Ø31 x H30 mm
KV Rating 280 170
Rated Voltage 24V 24V
No-load Current 0.45A 0.35A
Internal Resistance 195 mΩ 525 mΩ
Motor Weight 205g 205g
Configuration 12N16P 12N16P
Dynamic Balance ≤10mg ≤10mg
Bearings MR126 (686ZZ) MR126 (686ZZ)
Shaft Diameter 6mm 6mm
Prop Mount 4x M3-D24 4x M3-D24
Motor Mount 4x M3-D24 4x M3-D24
Winding Insulation 220°C 220°C
Magnet Grade Temp 150°C 150°C
Withstand Voltage AC500V AC500V
Protection Level IP68 IP68
Lead Type PCB Solder Board Output PCB Solder Board Output
Max Efficiency Speed 6000 rpm 3900 rpm
Max Efficiency Current 5.2A 2.2A
Max Efficiency Torque 0.17 N·m 0.11 N·m

IP68 Built for Underwater Missions

  • Fully Sealed IP68 Protection: Engineered for continuous submerged operation. The integrated sealed housing blocks water, dust, and debris for reliable long-term underwater performance.

  • AC500V Dielectric Withstand: High-voltage insulation ensures safe and stable electrical operation in wet and conductive environments.

  • 220°C Winding & 150°C Magnet: High-temperature materials maintain consistent performance under sustained underwater loads.

  • ≤10mg Dynamic Balance: Precision-balanced rotor delivers smooth, low-vibration operation for stable underwater control and extended service life.

  • MR126 (686ZZ) Bearings: Premium dual-shielded bearings provide smooth, low-noise rotation and long service life in submerged conditions.

Smooth, Efficient Underwater Drive

  • 12N16P High Pole-Count Design: Stable magnetic structure ensures smooth rotation, low cogging, and reliable performance in precision underwater maneuvers.

  • 6mm Precision Steel Shaft: Delivers reliable torque transfer and long service life in demanding subsea environments.

  • Compact 37.5 x 54mm Body: Small footprint and short length make integration simple in tight underwater spaces.

  • PCB Solder Board Output: Direct solder board connection for clean wiring and easy system integration.

Two KV Options for Flexible System Matching

  • 3130-280KV: Optimized for higher speed and efficiency — ideal for light to medium payload ROVs and underwater robots.

  • 3130-170KV: Optimized for higher torque at lower RPM — ideal for heavy payload or low-speed precision underwater missions.

Ideal Applications

  • ROVs (Remotely Operated Vehicles)

  • AUVs (Autonomous Underwater Vehicles)

  • Underwater robotic thrusters and manipulators

  • Submersible inspection and survey platforms

  • DIY marine and underwater robotics projects

Customization & Bulk Orders

We understand that off-the-shelf specs don’t fit every underwater project.

Available customizations include:

  • Custom KV winding

  • Shaft diameter and length modifications

  • Mounting pattern adjustments

  • Lead length and connector type (including wet-mate connectors)

  • Bell housing color and laser-engraved logo

Contact our engineering team with your requirements for a tailored solution and volume pricing.

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