With bult-in direct drive servo motor to achieve the accuracy of the machine’s rapidstart-up and braking; a significant reduction in noise and vibration, and reduce energy consumption, compared with conventional drive unit, battery depletion of 35% or more, suitable for sewing various shirts, suits or similar garments, especially it’s collar,breastand other parts, inverted send high-speed sewing material pitch to be completelyconsistent, side cutter device sewing and knife trimming procedures in one time efficiency.