The unique fourth sensor, make the thread tail length no longer depends on the operator's skill, and the thread tail within 5mm after trimming, no need extra trimming

It equipped with Jack’s newly upgraded 4th-generation control box, with optimized algorithms and control units, it enhanced the comfortable experience of human-computer interaction.The thread trimming response increased by 40%, the presser foot lifting response increased by 20.8%, and the start-stop response increased by 14.3%.

Easy to adjust the thickness in three levels from thin, medium to thick, suitable for sewing mesh, knitting, denim and other different fabrics and craftsmanship.