ZYHD660D Combi_folding machine is a bisected full automatic mixing folding machine, the first fold group of ZYH660D product is 4 pieces of railing beards and the first fold group of ZYHJ660D is 2 pieces of railings beard, which can combine with FD accumulated paper feeder or RD ring wrapped paper feeder, ZYH660D can carry out the four times parallel folding, the way of which is parallel type, organ type and reel type, ZYHJ660D cary out the twice parallel folding, and complete punching and pressing at the same time.The electrical system of the folding machine adopts PLC and frequency convert speed control, and posseses the automatic stepping device in case of double sheet and paper jamming.