Unitrol has been deeply involved with RESISTANCE WELDING TECHNOLOGY since 1970. Systems developed at Unitrol are the direct result of our original roots as a production sheet metal fabricating and welding shop dating back to 1946. We truly understand the real world balancing act between quality and quantity output from a welding department. Products manufactured: Resistance (Spot) Welding Controls Soft Touch Spot Welder Pinch Point Safety System Water Chillers and Coolers Temperature Feedback Resistance Brazing Resistance Welding Technology