OptiDry Chill web cooling

Effective non contact web cooling

OptiDry Chill web coolers offer excellent runnability and high cooling capacity due to their efficient nozzle technology. Maintenance costs are low because of the few wearing parts.

Excessively high paper web temperatures often cause problems when the paper enters the coater. These problems affect the coating process and the quality of the finished product. Valmet's web coolers offer solutions to such problems.

Main benefits of the Valmet web coolers:

• Optimized runnability
• No problems with condense
• Effective cooling with proven PowerFloat nozzle technology
• Warm return air exhausted out of machine hall
• Excellent control of air flows

OptiDry Chill air cooling units are used in the new bulk saving calendering technology, which is called Aqua cooling calendering. The sizes of the cooling units are very compact and the web passes the units twice. The benefits in this double-pass cooling are:

• Double-pass cooler with integrated air turn section has a long cooling section with a compact design
• Efficient PowerFloat Plus nozzle technology offer excellent web runnability and cooling efficiency

OptiDry Chill double-pass units: