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Ultrasonic Crawling System

Manta’s Ultrasonic Crawler, upon completion of certification, was the world’s first integrity inspection ROV to hold a true Class I Div. I Group D Certification. With an array of 8 UT transducers, our Crawler system has the capability to collect mass amounts of UT data for interpretation. The design incorporates a rotary brush which sweeps a path prior to collecting UT data, equipped with high definition white light and infrared technology, our Ultrasonic Crawler is also capable of collecting visual data of the tanks internal condition.

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Deployment of Manta’s Ultrasonic Crawler System into a large AST containing #2 Fuel Oil.


  • Class I Div. I Group D Certification.

  • Designed for large above ground storage tanks.​

  • Equipped with 2 cameras, 1 high definition and 1 infrared.

  • Collects UT data in real-time.

  • Utilizes sonar tracking technology, helping isolate areas of the tank for inspection purposes.

  • Weighs 150lbs.

  • Fits through manway 20” and greater.

  • 4 man crew.

  • 2-6 days to complete typical in-service API 653 inspection.

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