Pelagix AUV line scales from 100 m micro vehicles to 6,000 m deep-sea systems

Sanya Poseidon Ocean Technology has published specifications for its Pelagix autonomous underwater vehicle range, spanning 20 kg portable units to 2,000 kg deep-sea platforms. The lineup shows how navigation, pressure hulls, buoyancy, propulsion and communications change by depth class as demand grows for survey, inspection and intervention missions.

Why it matters: - The Pelagix line is built around a common autonomy stack, then reconfigured for shallow, mid-depth and abyssal missions. - That matters because the biggest AUV design trade-off is space: battery volume, payload bay size and buoyancy material all compete inside the same hull. - The specifications also point to a market shift deeper underwater, where standard commercial ratings often stop short of industrial requirements.

What happened: - Sanya Poseidon Ocean Technology published specifications for its Pelagix autonomous underwater vehicle range on September 29, 2026. - The line runs from a 20 kg portable AUV rated to 100 m to a 2,000 kg platform configurable for operations down to 6,000 m. - Published applications include dam inspection, offshore oil and gas survey, deep-sea mapping, environmental monitoring and subsea intervention.

The details: - The platform family is divided into five working classes: portable micro, nearshore survey, mid-depth survey, deep-sea and intervention. - The AUV-150 and AUV-160 are the smallest vehicles, designed for shore launch, small-boat deployment and net recovery. - The AUV-210 and AUV-260 cover nearshore survey work. - The AUV-324 and AUV-480 handle mid-depth survey missions. - The AUV-533, AUV-600 and AUV-900 make up the deep-sea group. - The AUV-F760 is the intervention platform with dual manipulator arms. - Depth rating is configured by platform variant, not fixed across each model family. - The AUV-533, AUV-600, AUV-900, AUV-324 and AUV-F760 are each offered in multiple depth configurations. - Payload capacity rises from 3 kg on the AUV-150 to 250 kg on the AUV-900. - The AUV-F760 carries a 60 kg payload and uses 6–8 thrusters. - Standard endurance at 3 knots ranges from at least 8 hours on the AUV-150 and AUV-160 to at least 90 hours on the AUV-533 and AUV-900. - Custom endurance reaches 50 hours on the AUV-324, 180 hours on the AUV-533, 270 hours on the AUV-900 and 400 hours on the AUV-F760. - The company lists modular payload bays and sensor integration options including CCD, CTD, altimeter, obstacle avoidance sonar, side-scan sonar, multi-beam sonar, sub-bottom profiler sonar, USBL and hydrophones. - Customization also covers depth rating, battery capacity, endurance, software, AI recognition models, monocular vision docking algorithms, cut-and-clear tooling, branding and documentation.

Between the lines: - The shared foundation across the line is INS + DVL + GNSS. - USBL is added from the AUV-210 upward, while SLAM appears on the AUV-533, AUV-900 and AUV-F760. - That layered approach suggests the company is selling one architecture across multiple mission profiles instead of separate product families. - The 6,000 m class shifts the most on hardware, moving to pressure housings, syntactic foam buoyancy modules and seawater-resistant electronics. - The endurance figures are best read as an allocation problem, not just a battery spec, because longer missions reserve more hull volume for cells and less for payload. - Trade classification may also matter to importers, with a US Customs and Border Protection ruling classifying ROV and AUV units under HS Code 901580.

What's next: - Operators evaluating the line will need to verify the configured depth rating, endurance speed, usable payload after sensor integration, navigation accuracy basis and technical documentation. - Depth options should be checked against the actual configuration. - Endurance should be compared at the stated 3-knot reference speed. - Navigation accuracy should be read as a percentage of range, not as a fixed metre value. - The company reports monthly capacity of 8–10 custom AUV platforms or core components, MOQ 1, and lead times of 60–90 days for standard models or 120–180 days for customised 6,000 m systems. - After-sales support includes remote assistance, sea-trial commissioning, operator training, a two-year warranty for pressure hulls and electronics, and modular spares.

The bottom line: - Pelagix is using one navigation core and scaling the rest of the vehicle around depth-class requirements. - The practical question for buyers is whether the configured depth, endurance and payload numbers match the mission before procurement starts.