Automatic swing needle machine specially designed to operate as an integrated part of sealing system such as with the NEWLONG KS Sealers. Features continuous motion feeding; the timed needle moves in epicyclical rotations as the bag passes through the sewing head. Power driven feed rollers ensure accurate feeding of the bag and avoid damage to the sack, which can sometimes be caused by a feed dog. Model DS-7C is equipped with pneumatic guillotine type crepe-tape cutter.