UUV Thruster Manufacturer for Deep-Water Underwater Vehicles
HELI is a direct manufacturer specializing in high-power-density electric thrusters for Autonomous Underwater Vehicles (AUVs) and Unmanned Underwater Vehicles (UUVs). Engineered for demanding subsea missions, our systems deliver exceptional thrust-to-weight ratios, reliable closed-loop speed control, and multi-thousand-hour operational endurance. We support global system integrators with comprehensive custom voltage specifications, communication interface adaptations, and bespoke mechanical integration for streamlined deployment.
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Compact UUV ThrusterCompact UUV thrusters integrate high-power-density brushless motors, built-in drive electronics, and streamlined hydrodynamic nozzles into a modular footprint engineered for space-constrained
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High-Power-Density UUV ThrusterDesigned for deep-sea autonomous and remote-operated vehicles, this high-power-density UUV thruster delivers maximum thrust within a compact envelope, integrating advanced electromagnetic topology
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Long-Endurance UUV ThrusterEngineered for extended underwater missions, this high-efficiency propulsion system delivers sustained thrust output while minimizing electrical energy consumption, ensuring maximum operational range
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Deep-Sea UUV ThrusterEngineered for demanding subsea robotic platforms, this deep-sea UUV thruster integrates a handmade high-slot-fill brushless DC motor, a magnetically coupled non-contact transmission architecture,
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High-Efficiency UUV ThrusterEngineered for demanding subsea deployment, this high-efficiency unmanned underwater vehicle thruster delivers optimized hydrodynamic thrust while minimizing electrical power consumption to extend
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High-Thrust UUV Propulsion ThrusterEngineered for demanding subsea robotics, the High-Thrust UUV Propulsion Thruster delivers heavy-duty vectored thrust and precise speed control for unmanned underwater vehicles operating in deep or
Why Choose HELI
Vertical Integration
Complete in-house control over motor winding, CNC precision machining, magnetic assembly, and systematic pressure testing.
Extended Endurance
Industrial-grade durability designed for continuous long-term deployment in corrosive marine environments with minimal service intervals.
Responsive Engineering
Direct technical collaboration with manufacturing engineers, delivering protocol adjustments and mounting designs within 24 hours.
Optimized Scheduling
Efficient production workflows ensuring dependable delivery timelines for standard series and custom project rollouts.
Technical Specifications
|
Parameter |
Specification |
|
Rated Power |
12.5 kW |
|
Rated Voltage |
300 VDC |
|
Maximum Speed |
1200 rpm |
|
Forward / Reverse Thrust |
236 kg / 236 kg |
|
Nozzle Outside Diameter |
400 mm |
|
Overall Thickness |
697 mm |
|
Propeller Material |
Stainless Steel |
|
Housing Material |
Aluminum Alloy / Titanium Alloy |
|
Drive Configuration |
Built-in / External |
|
Control Interfaces |
Analog Voltage / CAN Bus / PPM / RS485 |
|
Feedback Options |
Pulse / Analog Voltage / CAN Bus / PPM / RS485 |
|
Signal Power |
12 VDC ±5% |
|
Sealing Mechanism |
Magnetic Coupling |
|
Depth Configurations |
850 m, 1500 m, 3000 m, 6000 m, Full Sea Depth |
|
Service / Storage Temp |
-5°C to +40°C / -40°C to +70°C |
Key Advantages for UUV Integration
High Thrust in a Compact Design: Combines 12.5 kW rated power with 236 kg forward and reverse thrust in a 400 mm nozzle configuration, perfect for space-constrained UUV platforms.
Bidirectional Equal Thrust: Forward and reverse thrust are both rated at 236 kg, enabling seamless reversible propulsion control without altering the mechanical arrangement.
Non-Contact Magnetic Coupling: Transfers torque magnetically without a conventional rotating shaft penetrating the housing, eliminating traditional dynamic shaft seals to prevent leaks.
Multiple Control Interfaces: Native compatibility with analog voltage, CAN Bus, PPM, and RS485 control and feedback options to fit diverse vehicle architectures.
Flexible Depth Configurations: Supports operating depths ranging from 850 m to full sea depth, with housing materials and pressure compensation tailored to specific environmental conditions.

UUV Thruster Architecture Breakdown
Brushless Motor: Converts electrical power into efficient rotational output, developed and manufactured in-house by HELI.
Drive System: Manages motor speed and direction while providing electrical protection; available in built-in or external configurations.
Magnetic Coupling: Separates the motor and propeller sides while reliably transmitting torque across the pressure boundary without a physical shaft.
High-Strength Propeller: Built from durable stainless steel to convert rotational output into powerful underwater thrust.
Nozzle and Housing: Directs water flow and provides a robust structural envelope using high-grade aluminum or titanium alloys.

UUV Propulsion Applications
Seafloor Mapping
Delivering stable propulsion for long-range AUVs conducting bathymetric and geophysical survey grids.
Energy Infrastructure Monitoring
Powering inspection vehicles servicing subsea pipelines, platforms, and renewable energy foundations.
Oceanographic Research
Providing low-noise, vibration-free propulsion for marine ecosystem observation and data collection.
Defense & Security
Supporting long-duration autonomous patrol, mine countermeasure operations, and harbor surveillance tasks.
Motor & Drive Integration
Brushless DC Core
High-efficiency BLDC architecture optimized for subsea duty cycles, delivering high torque at lower RPMs.
Electronic Safeguards
Built-in protection against over-temperature, over-current conditions, and electrical isolation failures.
Back-EMF Suppression
Onboard capacitor networks designed to absorb transient voltage spikes during abrupt deceleration or shifts.
Reliability & Deep-Sea Testing

Hydrostatic Verification
Rigorous pressure testing replicating deep oceanic conditions to confirm zero leakage and structural integrity.

Endurance Validation
Extended runtime testing under full rated loads, validating mechanical stability beyond 3,000 operational hours.

Stress Screening
Component-level checks ensuring resilience against high-frequency vibration and thermal cycling.
Electrical Protection and Depth-Rated Solutions
Comprehensive Electrical Protection
Features integrated over-current protection, over-temperature protection, power isolation, and stable adaptation to voltage fluctuations.
Multi-Tier Depth Options
Standardized pressure-resistant solutions for 850 m, 1500 m, 3000 m, 6000 m, and full sea depth, supporting up to 3000 hours of continuous running.
Customized Engineering Solutions
Fully supports tailored adjustments regarding electrical parameters, mechanical dimensions, housing materials, and control interfaces.
Manufacturing & Quality Assurance
In-House Workflow
Complete vertical capabilities covering precision CNC machining, specialized winding, vacuum potting, and final assembly.
Advanced Machining
Multi-axis milling and turning centers ensuring tight tolerances for subsea hardware fits.
Traceable Inspection
Dedicated quality teams performing dimensional, insulation, and dynamic tests at every production stage with full batch documentation.
Packaging & Global Logistics
Protective Export Casing
Shock-absorbing foam matrices, moisture barriers, and reinforced export-grade wooden crating to eliminate transit damage.
Export Compliance
Complete documentation package including commercial invoices, packing lists, and material compliance sheets for customs clearance.
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Frequently Asked Questions

Request a Custom UUV Thruster Quote
Provide your platform parameters below to receive a customized technical and commercial evaluation:
Required Thrust
Rated Voltage & Power Range
Operating Depth
Vehicle Type & Installation Space
Control Interface & Quantity
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