- Needle bar linkage up and bottom feed structure and presser foot alternating elevation to ensure a smooth feed.
- Adopt a big hook to save the time of the bottom-line changes.
- Automatic lubrication system, maximum speed up to 2000 rpm.
- New sewing structure to ensure low tension sewing.
- Automatic sealed lubrication in elevation axis and swing axis in presser foot.
- Heighten design in rear cover to avoid oil leakage.