Automatic line for pad printing of polystyrene crates with 1 color, complete with conveyor belt and locking system of the piece during printing. Hermetic inkcup with ceramic ring 140 mm diameter, Slide system, automatic and programmable pads cleaning device, adjustable hot air Hot Wind 200. The machine is designed to be inserted into the production line immediately after the injection molding machine; the crates are conveyed from there directly on the pad printing line and after printing can be stacked and palletized. On request you can add a print head to print on both sides of the crate. Suitable for crates of different sizes. Output about 1000 pieces/hour.