Roll Concept has introduced Corexal, a universal winding core adapter. Corexal is designed to transform a 3" expanding shaft into 6" one without any tubing, mounting nor tools. When expanded, the 3" shaft opens the adapter, which then holds the 6" cardboard core. A spring enables users to remove the cardboard core after deflating of the expandable shaft. Corexal can be used alone (for small-width webs) or by pair. It is designed to cause no damage to the expanding shaft and no specific tools are needed to install it. The adapter is available in different lengths (standard of 300 mm or on request) and delivered in less than one week.