HJ-DYJ proofing machine is especially designed for checking the quality of a newly made gravure cylinder before assembling it into the production line. It is equipped with cylinder pneumatic clamping, clockwise or counter-clockwise rotation, rubber roller positioning and movement pneumatic control, and also blade lifting, pressure and angle adjustment system, photo focusing lens, 14 inch monitor, fine tuning of cylinder position so as to guarantee satisfactory printing and precise registration.