Opinion

Square Robot's SR-3 and Side Launcher Earn Hazardous-Area Certifications

Archive editionRyan OkaforFeb 7, 2025· 7,757 views

Square Robot's SR-3 submersible and Side Launcher receive C1D2 and C1D1 certifications, enabling robotic inspections of low-flashpoint tanks.

In context

In early 2025, the industrial robotics sector was increasingly focused on automating hazardous environment inspections to improve safety and reduce downtime. Robotic tank inspection had emerged as a key application, but many tanks containing volatile products still required manual, offline inspection due to safety concerns.

What was reported

Square Robot announced that its SR-3 submersible robot received NEC/CEC Class I Division 2 (C1D2) certification, while its Side Launcher received Class I Division 1 (C1D1) certification. These certifications were issued by FM Approvals, a Nationally Recognized Test Lab, confirming the systems are safe for use in hazardous locations.

The C1D1 certification for the Side Launcher is particularly significant as it validates safe deployment and retrieval of the SR-3 robot in floating roof tanks that often contain low flashpoint products. The SR-3 and Side Launcher have been commercially available since fall 2023, following milestone testing with ExxonMobil.

These certifications expand Square Robot's service portfolio, enabling inspections of tanks that previously had to be taken offline. The company claims to be the first to safely inspect a new group of low flashpoint product tanks using robotic technology.

Why it mattered

This development marked a step forward in robotic inspection for hazardous environments, potentially reducing the need for manual entry and tank shutdowns. It demonstrated how certifications can unlock new markets for robotics in industrial maintenance, aligning with broader trends toward safer, more efficient automation in manufacturing.

“We’re proud to be pioneers in this industry, and continue to develop new technology based on our clients needs.”

Source: Robotics & Automation News (roboticsandautomationnews.com) · Published 2025-02-07 · “Square Robot makes further progress with its robotic tank inspection system”