The new OptiFlo headbox family brings together our unrivaled expertise and new technology, opening the door to improved quality and increased productivity in all forming applications. Valmet’s high-performance headbox is ideal solution for gap forming applications, in order to meet today’s high papermaking demands on different paper grades.
The key elements of the OptiFlo Gap headbox are its completely redesigned headbox turbulence generator and a slice channel built using composite wedge technology. These innovations allow a consistent and disturbance-free slice jet. The key objectives of the OptiFlo Gap headbox are first to achieve optimal fiber suspension fluidization and then to maintain this optimal fluidization without disturbance across the forming section.
Experiences from several production machines show that homogenous slice jet quality yields excellent paper properties. This gap forming headbox design maximizes the utilization of raw material strength potential, which enables the use of more cost-effective raw materials.
The two-layer OptiFlo Gap headbox can produce a two-ply sheet using a gap forming unit. OptiFlo II and OptiFlo Pro headbox applications are available under the renewed name OptiFlo Gap headbox.
Asia Symbol Paper's two Valmet paper machines, PM11 and PM12 set a reference quality level for the global and Asian markets. Xinhui PM12 is equipped with the latest technology like shoe and blade forming technology to create a competitive edge for Asia Symbol in the future.
The world's largest and fastest woodfree-producing paper machine was started-up at the Zhanjiang Chenming mill in China. The recorded speed was 1,808 m/min. During a 24-hour run, the 11.15-meter-wide PM 1 produced high quality printing paper at a basis weight of 70 g/m2.
“Quality is one of the reasons why our customers trust us. Evenness is vital in art paper production. With the help from Valmet, we started producing the best quality after just three months after the start-up.” explains Wei Li Jun from Shandong Huatai mill.