Cord: Poly Urethane Bow Roller

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.