Three Stepper Motor Up And Down Compound Feed Synchronous Lockstith Machine
ST-2640
Altemating amount of inner and outer presser foot
The stepping motor controls the adjustment of the altem ateamount of the presser foot,easy sewing fom thin to thick.
Step motor bidirectional driven technology
One step motor control trimming and pressing foot lifter work，to make the stable trimmer and quiet presser foot.
Stepper motor needle stitch adjustment
The stitch length is accurate, the set value is the actual value; the stitches overlap accurately, the reinforcement stitches are beautiful, decorativestitches can be sewn, and the back stitching sound is light.
