Max. working speed??000 pcs/hour Thickness of paper??80-130 g/m2 Envelope specification??ax:350?520 (mm) Min:120?200 (mm) Motor power??.5 (kw) Power of vacuum pump??2.5 (kw) Weight of machine??800 (kg) Overall dimension(L?W?H)??2600?950?1800 (mm)