At CSI, we don’t just fabricate components—we engineer reliable processes that support excellence at scale. From rethinking gas purge strategies to standardizing our welding documentation, every step we take is about delivering cleaner, stronger, and more consistent results. When it comes to TIG welding for ArcticMax acetylene traps, we’ve set a new internal benchmark.

One critical weld parameter we emphasize at CSI is bead overlap—the portion of the weld that covers the previous pass during the automated orbital welding process. We uphold rigorous standards when it comes to precision orbital welding. In the world of Ultra High Purity (UHP) gas systems, where contamination control and structural integrity are non-negotiable, weld quality directly impacts system performance, safety, and cleanliness.

At Critical Systems, Inc. (CSI), precision, reliability, and repeatability are the foundation of every electrical harness and cable...

Culture is more than a set of values at Critical Systems Inc., it’s the way we work, grow, and connect every day. At CSI we believe in having core values, collaborating, investing in the people here, and have fun traditions that bring us together.

Critical Systems, Inc. (CSI) is excited to announce that the groundbreaking Lightning Series (LS) Weld Head is coming to California! The industry’s first and only orbital welding solution is engineered to weld copper using our patented technology. Professionals across welding, engineering, and fabrication can now achieve precise, durable, and repeatable copper welds—delivered with exceptional control and safety. Now’s your chance to try it for yourself!

Critical Systems, Inc. (CSI) is thrilled to announce the official launch of the Lightning Series (LS) Weld Head—the first and only orbital welding equipment capable of welding copper using patented technology. For the first time in the industry, welders, engineers, and fabrication specialists have access to a solution that delivers clean, strong, and consistent copper welds with unmatched ease and safety. And now, you can see it in action.