One drive three(patented technology): A stepping motor controls the stitchlength, thread trimming and presser foot lifting functions to achieve subversive innovation. With the function of locking for start and after trimming, effectively shorten the stitch length, prevent off-thread.Adopt step motor to drive , stable.light noise and convenience on maintenance.

Optional---Thread take-up lever patent versatile for thick and thin fabrics both

New mechanism for double round cutter

Control stitch length，Trimming，Presser foot up/down