CubeMars DW20 Underwater Thruster
CubeMars DW20 Underwater Thruster
Product Description
The CubeMars DW20 underwater thruster is a high-performance propulsion system designed specifically for medium-class remotely operated vehicles (ROVs) and autonomous underwater vehicles (AUVs).
Rated at 48 V, it delivers a maximum static thrust of ≥20 kgf and is rated for operation down to a depth of approximately 350 meters. The thruster features a precision-cast aluminum alloy housing, a dual-chamber independent sealing structure, and a low-friction dynamic shaft seal—collectively reducing hydrodynamic drag while enhancing propulsion efficiency and long-term reliability in demanding subsea environments.
Core Specifications
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Dimensions: Φ152 × 191 mm
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Weight (in air): 1630 g
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Maximum Static Thrust: 20 kgf
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Continuous Rated Power: 910 W
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Operating Depth: 0–350 m
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Cable specification: TPU (Matte) φp9mm-3*13AWG-1.5M
Product Highlights
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High-Thrust Output: Delivers ≥20 kgf static bollard thrust—ideal for propulsion of medium-sized unmanned underwater platforms
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Deep-Dive Capability: Validated for use down to ~350 m, suitable for underwater inspection, maintenance, and survey missions
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High-Strength Housing: Precision-cast aluminum alloy shell offers excellent corrosion resistance and impact durability
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Dual-Seal + Low-Drag Shaft Seal: Advanced sealing architecture effectively blocks sand, dust, and water ingress, significantly extending service life and operational reliability
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Streamlined Nozzle Design: Optimized hydrodynamic profile reduces underwater drag, improves thrust efficiency, and lowers electrical load on the power system
Packaging Contents
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DW20 Underwater Thruster ×1
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Certificate of Conformance ×1








| PRODUCT PARAMETERS | |||
| Parameter | Value | Parameter | Value |
| Rated power | 910W | Main shaft sealing method | Low-resistance dynamic seal |
| Rated voltage | 48V | Main body structure | Two-stage sealing chamber |
| Maximum mooring thrust | ≥20kgf | Cable specifications | TPU(Matte) φ9mm- 3*13AWG- 1.5M |
| Applicable water depth | 0-350M | Driver | External |
| Material of the nozzle | POM | Applications | Unmanned surface vehicle, Electric surfboard, ROV,etc. |
| Material of the propeller | Aluminum alloy | Weight | 1670g(in the air) 960g(in the water) |
| Material of the shell | Aluminum alloy | Environmental conditions | 0-50°C(Storage) 0-40°C(Operating ) |
| Propeller specifications | φ126mm | Usage tips | Rinse with clean water promptly after use. |
| Motor rotor pole number | 20P | Recommended ESC matching | TW-80A-12S |





