... 0.55kw Voltage:220V ST440 Non-stop Stitching Machine Technical Parameter of Non-stop Stitching Machine Speed:500~5000sheets/ ... 220V Machine size:2280x1060x1320mm Weight:490kgConstruction Feature of Non-stop Stitching MachineIt installs Microcomputer control,original U.S. ... is manual and automatic operation,speed adjusting,calculating,automatically stop while paper jam happened,no stitching without book ...