Overview
The CubeMars DW20 Underwater Thruster delivers powerful, efficient propulsion for demanding underwater applications. Operating at 48V with 910W rated power and a maximum bollard thrust of ≥20kgf, it is engineered for depths up to 350 meters. Built from high-strength aluminum alloy with a POM nozzle, it offers superior corrosion resistance, durability, and long-term performance. Designed for ROVs, unmanned surface vehicles, and electric surfboards, the DW20 combines compact size, precision casting, and a low-resistance dynamic shaft seal to ensure stable, maintenance-free operation in challenging marine environments.
Key Features
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High Thrust Output: ≥20kgf maximum bollard thrust for powerful navigation.
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Deep-Dive Capability: Operates reliably up to 350 meters underwater.
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Durable Build: Aluminum alloy shell and propeller for wear and corrosion resistance.
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Sealed Design: Two-stage sealing chamber with low-resistance dynamic seal prevents debris ingress.
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Thermal Efficiency: Heat dissipation via water immersion with thermal conductive materials.
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Compact & Lightweight: 1670g in air, 960g in water for optimal ROV balance.
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Precision Engineering: Streamlined propeller and nozzle design for improved hydrodynamics.
Specifications
| Parameter | Value |
|---|---|
| Rated Power | 910W |
| Rated Voltage | 48V |
| Maximum Mooring Thrust | ≥20kgf |
| Applicable Water Depth | 0–350M |
| Material of Nozzle | POM |
| Material of Propeller | Aluminum Alloy |
| Material of Shell | Aluminum Alloy |
| Propeller Diameter | φ126mm |
| Motor Rotor Pole Number | 20P |
| Main Shaft Sealing Method | Low-resistance dynamic seal |
| Main Body Structure | Two-stage sealing chamber |
| Cable Specifications | TPU (Matte) φ9mm – 3×13AWG – 1.5M |
| Driver | External |
| Applications | ROV, USV, electric surfboard, other underwater vehicles |
| Weight | 1670g (air), 960g (water) |
| Environmental Conditions | Storage: 0–50℃ / Operating: 0–40℃ |
| Usage Tips | Rinse with clean water promptly after use |
| Recommended ESC | TW-80A-12S |
Applications
Ideal for remotely operated vehicles (ROVs), unmanned surface vessels (USVs), electric surfboards, and various underwater exploration platforms requiring high thrust, deep-dive reliability, and low-maintenance operation.
Manual Downloads
Details


CubeMars DW20: 910W power, 48V voltage, ≥20kgf thrust, 0-350M depth. Aluminum alloy propeller/shell, POM nozzle. For USVs, electric surfboards, ROVs. Weighs 1670g (air), 960g (water). Operating temp: 0-40°C.

CubeMars DW20 Underwater Thruster analysis: Speed vs Power, Power vs Thrust, and Speed vs Thrust graphs illustrate performance metrics for forward and reverse thrust operations. Data highlights efficiency across various RPM and power levels.

CubeMars DW20 thruster: 48V, 910W, 20KGF thrust, 0-350m depth, 1630g weight, 152*182mm size. Ideal for underwater applications requiring moderate power and depth capability.

Compact, powerful underwater thruster with ≥20kgf mooring thrust for easy navigation.

Innovative design, cutting-edge engineering. Advanced sealed casing for superior performance.

Designed for depth, multiple specification options. Navigates from 0 to 350 meters, engineered for ROVs. Models: DW10 (≥10kgf), DW15 (≥15kgf), DW20 (≥20kgf), DW25 (≥25kgf).

Alloy precision casting ensures corrosion resistance, durability, lightweight, high-strength aluminum alloy.

CubeMars DW20 Thruster: Sealing, shaft design, streamlined propeller for stability.
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