With bult-in direct drive servo motor to achieve the accuracy of the machine's rapid start-up and braking; a significant reduction in noise andvibration, and reduce energy consumption, compared with conventiona drive unit, battery depletion of 35% or more, suitable for sewing various shirts, suits or similar garments, especially its collar, breast and otherparts, inverted send high-speed sewing material pitch to be completely consistent, side cutter device sewing and knife trimming procedures inone time eficiency.