It equipped with inner diret-drive servo motor to bring out the smooth start and the sewing of stable performance, and the speed can be adjusted. Applicable for cotton, wool, elastic mechanical fibre and medium-heavy leather with light and medium-heavy material. It is equipped with convenient-operation, long-life, nice appearance, besides, it adopts automatic oil lubrication system and oil control making the material clean. Adopting universal spare parts in international standard, which are convenient for users in purchase. It is the ideal sewing equipment for garment, shoes and cops industrial.