The machine introduction of Germany advanced core technology, independent research and development of new varieties, the use of the needle bar swing the presser foot, feed dog simultaneously feeding mode, enabling the lower feed speed to reach consensus in the sewing process, the use of the built-in servo motor direct drive to achieve a fast start-up and braking of the machine precision;while the use of advanced computercontrolled technology, stable performance, strong anti-interference ability. On the overall perfo-rmance of the whole drive smooth with lttle noise, high durability. And a rotating spindle overload protection clutch device to ensure product quality and safety sew the hook, With automatic needle positioning, automatic pin number, automatic presser foot lift, auto-matic reverse stitch sewing patterns and other intelligent, suitable for sewing thick material, bags, sofas, leather products.