Pyradia offers a complete line of surface unwinds and winders, ideal for handling a wide variety of webs, from dense large paper rolls to delicate tension sensitive textiles, nonwovens and foam materials.
Surface winders can be divided in two categories: Drum surface winder where wound roll weight is either supported on bedrolls or drums, and Linear Displacement winder where it is supported by a central shaft.
Linear Displacement winders are the perfect solution for tension sensitive materials, such as foam, nonwovens, and paper. These winders allow for continuous operation, with airshafts being automatically loaded, contacting the substrate at initial winding position, on the fly transfer and final winding at the secondary position. The secondary winding position moves linearly during roll build-up, keeping pressure constant against the nip roller, independently from product roll weight variations.
