* With automatic pile-lift control system * The use of Photo-electric controlled knife ensures high speed and reliable * High quality sheet separating feeder is adopted for sheet transmitting . * Combined with metred buckle plates, easily operated and adjustable. * PLC and transducer speed regulator are adopted * Man-machine interaction is adopted to set data, detection trouble and display help information. * Parrallel folding can be operated four times with the buckle plate * Modes of folding include parallel fold, concertina fold and letter fold * In case, knife folding is adopted, vertical folding can be operated two times * Perforating, creasing and slitting can also be operated during folding process as required