Scope of application：Sofa, luggage, car cushion, tent, leather goods, shoes and other thick material products.

The characteristics of：The large vertical rotary hook is used for thread hooking, the presser foot, cloth feeding teeth and needle are fed synchronously, and the sliding rod is used for thread take-up. The upper and lower shafts are supported by roller bearings, driven by synchronous toothed belt, plunger oil pump and automatic lubrication system. The utility model has the advantages of light and smooth transmission, low noise and high durability. It is also equipped with a clutch device to protect the overload of the rotary shuttle, so as to ensure the safety of sewing products and rotary shuttle.