... per hour. 3,Design with speed adjust and microadjust Electromotive type of ZY-600A Lighten type of double back paper machine/Paper folding machine1,A3 ... ,Speed 7200 papers per hour.3,Dsige with speed adjust and microadjust.4,Lower one save 350 pages.5,Power:220V ... weight:14.5(kg).10,Gross weight:16(kg). Electromotive type of ZY-600A Lighten type of double back paper machine