Chief has introduced an all-new squeeze-type resistance inverter spot welder for repairing high-strength steel. Chief states that the MI200T with lightweight transformer pliers is more powerful, more efficient and more maneuverable than other spot welders. And with a list price below that of many spot welders with older cable-based technology, it’s more affordable, too.

The MI200T’s high-performance transformer pliers draw up to 40 percent less power than many cable pliers, further enhancing its energy savings and long-term cost-effectiveness. This high-efficiency design also means that the amperage service required for the MI200T is one of the lowest in the industry, typically requiring only a 40A service. In addition, the MI200T’s duty cycle is so high that the technician can operate the welder continuously without having to slow down to let the welder cool off. Liquid cooling to the tips is standard.

The MI200T offers “worry-free” welding through the TrueAutoMode automatic welding system. TrueAutoMode detects the metal type and thickness, as well as the presence of adhesives and insulation, and then automatically adjusts and sets the welding parameters accordingly. It provides instant feedback to the technician about the weld result, while simultaneously logging the results into memory. At the end of a job, with the use of a common SD card, the technician can print out a report that includes information on the settings, messages and actual weld parameters of every weld, enabling the shop to document that its welds were made correctly.

Technicians interface with the MI200T through a compact control panel featuring an LCD screen and easy-to-follow graphical controls. Changing arms is a fast and easy process: pop off the cooling line, flip a lever and remove the arm. Reverse the steps to install the new arm and get back to welding.