Features: Direct drive servo motor provides quick start sewing, precise positioning, low noise and no belt dust. The suction device use the sensor control system. Suction timing is adjustable, It is different from the traditional type working when the machine running always. Effectively save the air consumption. Pneumatic side cutter is different from the traditional type. The traditional side cutter driven by the mechanism part from the machine, the blade is continue moving when the machine is working. Our new side cutter's blade is driven by a small cylinder and operated by a sensor control system, you can adjust the cut timing and the number of cut times. . For example, you you can adjust 2 times or 3 times cut operation at the beginning or ending . It make the blade more durable. This device operated with a thread tension relax device which can adjust the thickness between threads, let thread out from needle plate smoothly then cut off, effectively save threads. And the air blower assist make the thread inhaled easier. This device is easy to operate, no gesture request.