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Critical Systems’ Lightning Series (LS) heads feature our patented Super Cooling Technology. The LS heads were designed from the ground up for high amperage applications like copper welding and heavy wall pipe or tube, where a homogeneous single pass weld is preferred. In fact, the weld head body remains cool to the touch even when the cassette and collets reach and exceed temperatures of over 400 degrees Fahrenheit!

For the last 27 years, Critical Systems has been providing and servicing orbital welding equipment and supplies. Join the Boise Shop Lead, Corwin Throngard, as he explains more about the products and services that CSI offers.

At Critical Systems Inc., we don’t just make welding equipment, we make welding better. From our compact CSI Mini Pendant to our breakthrough Red Metal Welding technology, every product is engineered to solve real problems, boost productivity, and deliver consistent, high-quality results. Whether you’re looking to extend equipment life, improve precision, or take on new materials like copper, CSI has the tools to keep you ahead of the curve.

At Critical Systems Inc., shop lead Xavier plays a hands-on role in keeping the team focused and the shop running efficiently. From planning workflows to troubleshooting complex repairs, his management is key to keeping the Arizona shop ahead of schedule. come take a closer look behind the scenes!

For the first time ever, Critical Systems has developed orbital fusion welding for copper! Red Metal Welding represents a major leap forward in orbital welding technology. From hospitals to HVAC, data centers and plumbing applications, this proprietary process delivers next level precision and reliability.

Critical Systems Inc. is proud to announce our participation in the 2025 United Association’s Instructor Training Program in Ann Arbor,...