Using the built-in direct drive servo motor,realized computer control quick start and stop precision,greatly reduces the noise and vibration,and reduces the energy consumption,and the compared with normal type ,it can save poer consumption more than 70%.With automatic thread trimmer,thread niper,and auto reverse stitch function,make operation more simple, convenient,greatly improves the work efficiency.it can improve more then 15% production efficiency,put into use two years of the saving work resouces to recover the machine into capital.