Zhuhai success story with Valmet’s metal belt calender

In 2007, Zhuhai S.E.Z. Hongta, located in China, added a new ValZone metal belt calender into their folding boxboard BM 2 . Today the calender is renamed into OptiCalender Metal Belt. The investment resulted in better board surface quality and higher bulk, and thus begun the lightweighting trend in China as well.