The machine adopt upper and lower compound parts feeding ,it brings upper and lower parts feeding into correspondence with in the sewing time ,adopting big rotary shuttle ,reduce the tinme of change underline,specially suitable for thick thread sewing product ,specially backstitch function,uneasy broken thread features ,link parts feeding mechanism make stitch adjust easily .it is suitable for sewing of thick thread product.

Prolongs service ife by adopting automatic lubrication system.