1. Step motor bidirectional control lift foot and wire cutting, to achieve ultra-quiet more durable ultra-quiet, more durable.
2. Lifting foot and cutting line response time is faster, shorter thread.
3. Optimize the stroke structure of the needle rod, the upper bending needle remote rod, an edging CAM mechanism so that it can really, really ach moot through the bone seam
4. A third light eye is provided at the back end of the side of the needle plate to effectively prevent fabric damage when turning and sewing.
5. Patented built-in handwheel design.