1. Upper differential feed is driven by an independent stepping motor. The upper differential feeding amount can be adjusted to flexibly switch between synchronous and differential modes, enabling uniform pleating and preventing misalignment for smoother sewing results.

2. Front-mounted differential connected with mechanical linkages (Patented product).

3. Up to 15 segments can be programmed for electronic upper differential.

4. Manual switching of differential feed amount and stitch length is available.

5. Electronic back-tacking, electronic thread tension, electronic stitchlength, and built-in presser foot lifter.

6.The stitching is chain-stitch double-needle stitch.

Suitable for women’swear, children’s wear, pleated stretch fabrics, or processes requiring chain-stitch for low-tension sewing.