Automatic pad printing machine for the printing of contactors 5 colors. Rotating 90° and 180° workpiece carrier for printing on three sides, independent pads to adapt to different workpiece heights, brushless motorized elliptical feeder 14 stations, hermetic inkcup with ceramic rings diameter 130 mm, automatic and programmable pads cleaning device. The machine is equipped with 2 pick & place devices for the automatic loading and unloading of the pieces, output about 1000 pieces/hour.