Jack A4B
Bottom thread clampping to anti Bottom thread clampping to anti thread-off while starting sewing
Jack brand new patent for bottom thread clamping, effectively reduce the probability of thread-off while starting sewing
High precision stitch
Stitch length can reach 0.1mm controlled by stepping motor. Stitch length adjustment function can be locked just in case operator’s mis-operation.
Stepping motor control, Stepping motor control, presser foot heigtht adjustable
The height of the presser foot can be adjusted within the range of 0-13mm basing on the thickness of the fabric, saving time and convenience.
Variable stitches, fashionable and Variable stitches, fashionable and beautiful
The height of the presser foot can be adjusted within the range of 0-13mm basing on the thickness of the fabric, saving time and convenience.
Technical Parameters
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