Combined feeding thick material lockstitch sewing machine lengthened, adopts large vertical rotary hook thread hook and slide bar thread take-up. It is a heavy material sewing machine with single needle and double needle models. The upper and lower shafts are supported by bearings and driven by synchronous toothed belts.
It adopts the synchronous feeding method of needle bar swing, presser foot and cloth feeding dog. In terms of comprehensive performance, the whole machine has smooth transmission, low noise, high durability, and large operating space. It is also equipped with a clutch device to protect the hook from overload, ensuring the safety of the sewing products and the hook. It is suitable for sewing automotive accessories such as seat cushions, safety belts, and airbags, and it is also suitable for sewing large appliances such as tents and parachutes.
It can also choose a 550-watt electronic speed-regulating motor and add special accessories to achieve the functions of automatic presser foot lifting, automatic reverse sewing, and automatic needle positioning.