Automatic exclusively designed line for the pad printing of syringes graduated scales with diameter from 10 to 40 mm and height from 70 to 100 mm. Simple to use and highly productive, it uses a rotary pad printing head with steel cylinder of 100 mm vertical positioned to facilitate the loading and setting of the machine. It is built entirely of stainless steel and aluminum and can be placed in a clean room. The operator panel allows easy programming of all required parameters, and makes the machine suitable for various productions. It is also equipped with a recirculation system and ink mixing, which allows to work for a long time without the need of interventions for the ink dilution. On request an automatic control system of the ink density can also be installed. The machine prints at 360° on the syringe body and is equipped with a vibrator for the automatic loading of the pieces, hot air device Hot Wind 200 on the pads, automatic and programmable pads cleaning. Output about 7000 pieces/hour.