This machine adopts link-typed feeding mechanism, durability, feed balance, expanded class sewing material and creep in the thick of a large sewing materials, make the lower feed speed to reach consensus during sewing. Use the bullt-in servo motor direct drive, to achieve a quick start and brake the machine precision; while the use of advanced integrated computer control technology, stable performance, strong anti-interference ability, Using big hook, reducing the number of change the bottom line, improve work efficiency; automatic lubricating device to increase machine life. With automatic needle positio-ning, automatic pin number, automatic counting inverted seam, automatic cut line, electronic clamp, automatic presser foot,and other intelligent sewing patterns. Suitable for sewing thick material, bags, leather, leather products.