This chain stitch bag closer sewing machine is a semi-automatic sewing machine used for sewing the seams of garment bags, especially accessories or accessories. It is equipped with a double thread chain stitch regulating device and can be adjusted freely according to the different weights of objects. It can be used for closing the open side seam on the back of the package. It features a double thread chain stitch that ensures the high productivity of sealing bags. The design enables you to shift from single to double stitching without switching the machine on and off. This semi-automatic sealing machine for fast finishing at a high output rate, using special safety needle heads.