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Pullers for a great variety of industrial sewing machines for synchronous transport of fabric during sewing process have been manufactured by Jentschmann for many decades. The drive of these pullers occurred from the sewing machine by intermittent gear units only in forward direction.
The new puller generation of Jentschmann is now driven by electronically controlled stepper-motors and allows forward and backward transport for example for back tacking. In addition to the industrial sewing machines the pullers are also used for the ultrasonic welding machines to support transport and to compress the welding or gluing seams.
Due to the independent stepper-motor drive mount of pullers on sewing machines has become much simpler as synchronisation occurs electronically and no more mechanically.
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