This automatic tube to tubesheet welding machine is a precision orbital TIG welding system engineered for efficient, high-quality tube-to-tubesheet joining in boiler, heat exchanger, and pressure vessel fabrication. Designed with one-button operation, the welding head positions quickly and accurately, significantly reducing setup time and minimizing operator dependency. The automatic tube to tubesheet welding machine supports multiple joint configurations—including tube extension, tube flush, and tube recess—and offers both autogenous (self-melting) and filler-wire welding modes to accommodate a broad range of process requirements. Compatible with carbon steel and stainless steel materials, the machine delivers consistent, repeatable weld quality across production batches.