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SAIR Wireless UT Crawler

SAIR is a wireless magnetic crawler robot capable of conducting ultrasonic and visual inspection on various assets like tanks, vessels, pipes and elbows. Its unique and patented design makes it highly maneuverable on curved surfaces from 8” in diameter up to a flat plate. In addition, SAIR is equipped with gas sensors for detecting hazardous and flammable gases.

Inspection of elevated pipes and hard to access locations has never been more convenient. With SAIR, there is no need for costly scaffolding and the whole system weighs less than 15kg, which makes it ideal for On Stream Inspection (OSI) and also during Testing and Inspection (T&I).
The robot is controlled by a rugged tablet where reliable UT thickness data (A-scan and B-scan) can be collected and visualized in real-time on a 10.1” sunlight viewable touchscreen.

Contact us to find out more about the SAIR Wireless UT Crawler or any of our custom robotic solutions.

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Dimensions Length 325mm Width 180mm Height 215mm

Weight 9.5kg

Max Driving Speed 140mm/s (8.4 m/min)

Gas Sensors CH4, CO2, O2 UT Dry coupled wheel probe Thickness 4mm to 40mm

Camera 1 camera, adjustable pan & tilt LED Adjustable brightness LED

Battery Typical life 2 hours Communication Wireless up to 100m

Operating Temp 0℃ … +50℃

Control Module Dimensions

Length 192mm Width 283mm Height 21mm

Display 10.1″(25.5cm)

Weight1.3 kg

Battery 8-hours battery lifeIP rating IP65

Operating temperature -10℃ … +50℃

Versatile and Effective Inspection Solution

Designed to work on a wide range of structures, SAIR is capable of measuring the remaining wall thickness of tanks, vessels, pipes and other steel assets in difficult-to-access locations

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The Process

To solve complex assignments, a strategy that considers both purpose and potential is required. Our hybrid approach maximises the opportunity to solve virtually any design challenge, no matter the industry.  A cross-section of our development process reveals an agile method, which blends science, technology and business. The physical output of our process results in products that meet end-user goals, business objectives and utilise next-generation manufacturing.

Discovery & Opportunity Identification

We actively seek to uncover the most potent opportunity for your immediate position, while considering the most optimal finance, acquisition and support model to complement asset life-span.


With all planning and specifications defined, a complete electrical, mechanical and software prototype is produced and rigorously tested by our dedicated engineering team.

Recommendation & Validation

We collect high-level data from testing, to provide you with the best solution for your inspection, independent of hidden agendas. This ensures that the right technology is applied to the relevant project.

Deliver, Deploy & Support

Your system is delivered ready for deployment, complete with structured training and documentation to assist with immediate usage, backed by our 24/7 support team.

Need a custom solution?

Nexxis focuses on future outcomes, to try and achieve the best possible outcome for clients.