The heavy material sewing machine adopts a special upper and lower feeding mechanism and a presser foot cross-lifting mechanism, which can ensure that the feeding volume of the upper layer and the lower layer are consistent when sewing bulky sewing materials and medium-heavy materials with large creeping properties; During overlapping sewing and climbing sewing, the material feeding is smooth, the needle distance is stable, and the stitches are smooth and beautiful.
The heavy material sewing machine can easily sew extremely heavy material items such as sofas, container bags, seat belts, and leather. It adopts single straight machine needle, hook opening with shuttle hook, and feeding material up and down to form a double-thread lock stitch.
The extra-heavy material sewing machine is equipped with a reverse sewing device, which is easy to operate. Main technical parameters: the maximum sewing speed is 800 stitches/min, the stitch distance adjustment range is 12mm, the lifting height of the presser foot is 14mm with manual control and 22mm with knee control. The extremely heavy material sewing machine is aimed at relatively bulky and thick fabrics. The more user-friendly design here is the operating space of 200× 420mm.