Wynnchurch Capital Partners has sold manufacturer Webex to Bertram Capital. The Neenah, WI-based company designs and manufactures engineered rolls and specialized systems for web handling and converting applications, and had been a portfolio company of Wynnchurch since 2007. The deal marks Bertram's second platform investment and third transaction in the plastic processing and web handling equipment industry. In addition to its equity investment, Bertram also provided subordinated debt to finance the acquisition. Livingstone Partners served as the exclusive financial advisor to Webex and Wynnchurch in the transaction.