Poly Expander is a roller with PU Cord mounted in the grooved roller. The cord starches in & out as the roller rotates.
→ The amount of spreading is adjusted on each side with separate
→ cam to avoid stretching in the center
→ Designed to remove wrinkles without angular stretching
→ Solution for Thin film where low friction is coefficient cord type
→ design achieves ideal expansion for relatively wide variety of material