Unique smooth: Electronic puller

With PFAFF’s electronically powered puller (via stepper motor) the feed of the puller cylinder and the contact pressure of the cylinder may be directly and simply adjusted via the operator panel. In contrast to traditional (mechanically powered) pullers the stitch length does not change when the speed is increased or decreased – it adjusts to the speed. The puller works intermittently i. e. the puller only feeds, if the machine feeds. The material is pulled/stretched less. Even in difficult materials (e. g. silk or drape fabric) smooth and distortion-free seams can be achieved.