Program control, differential, abutted seam sewing machine

1. It's controlled the upper and lower differential feeding by program, can sew ruffling effect and finish abutted seam sewing.

2. The operator can choose non-ruffling(abutted seam sewing), one layer ruffling or double layer ruffling by the touching screen. It can also set the ruffling densit for up and down layer on the screen. It realized the standardization of ruffling density.

3. Three parts compound feed construction make sure feed smoothly while sewing heavy or complicated material, and difficult to move for upper and lower material.

4. With the functions of auto back tacking, pneumatic presser foot lifting, adjusting alternating amount of presser foot instantaneousl, it makes the sewing operation more relaxed and higher efficiency.