The highest sewing speed is 1500- 1800 rpm. The stitch pattern is double-line or single-line chain stitch spacing is 6-9mm. The thickness of the joint material is 6 6- 10/0mm. Machine needle specification is 220V/25 # sewing thread specification is 2 1 2×3 polyester thread power supply. The net weight of 36V machine is 4kg. The motor specification is 90W.