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Hellcat Pipe Crawler

The Nexxis Hellcat is a robust, modular pipe inspection crawler engineered for long-range, submerged, and in-service operations in the harshest environments. Purpose-built for industries such as oil & gas, petrochemical, mining, utilities, and power generation, it delivers high-performance inspection across both onshore and offshore assets.

With a rugged chassis, heavy-duty tethering, and advanced sensing capabilities, Hellcat is designed for endurance and precision. Its modular design supports a wide range of NDT tools and is fully compatible with Argus for SLAM-based localization, path planning, and geotagged inspection. This makes Hellcat a powerful all-in-one solution for pipeline integrity, underwater inspections, and complex remote assessments.

⚙️ Customisation & Integrations

The Nexxis Hellcat is highly customisable and engineered for extreme inspection environments. It operates in flow conditions up to 5 m/s (FEA validated and third-party approved) and is depth rated to 60 m for submerged applications. The system integrates dual UT probes with automated calibration and workflow, a hydrophone for leak detection with individual device shutdown, and a comprehensive visual suite including a 4K industrial-grade PTZ camera, HD reversing camera, and a forward-facing HD camera at the 6 o’clock position. These features make Hellcat a powerful, modular solution for complex inspections across pipelines and underwater assets.

The HellCat also has an option to include Laser scanning to 0.01mm accuracy.

Applications

  • Pipes / Pipelines
  • Sewer / Storm Drains
  • Water Intake and Outfall Inspection
  • Penstock Inspection
  • Submerged Structure Inspection
  • Confined Spaces

Industry Leading Visuals

Hellcat delivers a technical breakthrough in visual inspection with a fully submersible, industrial-grade 4K PTZ camera capable of capturing ultra-clear imagery in the harshest environments. Equipped with variable on-camera LEDs and dual spotlight lighting, it ensures unmatched image quality at any deployment depth.

The advanced visual suite includes the 4K PTZ camera for high-resolution imaging and zoom, an HD reversing camera for precise navigation, and a forward-facing HD observation camera at the 6 o’clock position—ideal for capturing low-angle or bottom-up views inside pipelines and confined spaces.

400V to go Further

The Nexxis 400V Power Supply Unit is a high-voltage extension module designed to integrate seamlessly with the standard JuiceBox controller. This advanced power solution enables 400V transmission over the tether, dramatically increasing the operational range of robotic systems like the Hellcat—allowing it to reach distances up to 3000 m in custom configurations.

By delivering high-voltage power over long distances, the 400V unit supports additional payloads and peripheral devices, including advanced sensors, manipulators, and lighting systems, without compromising performance or endurance. This integration expands the capability of the Hellcat platform for deep-access, long-range, and high-power inspection applications across pipelines, subsea assets, and remote infrastructure.

Endless Sensor and Payload Compatibility

The Nexxis Hellcat supports a wide range of modular payloads, making it a highly adaptable platform for inspection and light intervention tasks. Payload options include ultrasonic testing (UT) probes for wall thickness measurements, extendable control arms and manipulators for precise tool positioning, and a hydrophone for leak detection and acoustic monitoring. It can also be equipped with a laser scanner for high-resolution 3D profiling and mapping.

For active intervention, Hellcat can carry working tools such as grinders, cutters, and samplers, enabling remote execution of tasks like surface preparation, material removal, and specimen collection. These payloads can be configured based on specific mission needs, with the robot’s modular design and powerful onboard power systems supporting custom integration. Whether for inspection or in-situ maintenance, Hellcat offers the flexibility to operate in a variety of complex and hazardous environments.

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