Drying Solutions for High Precision Wide-Web Applications

Drying Solutions for High Precision Wide-Web Applications

Customer specification; “high precision drying and curing for a coated web that is 16 feet wide and moving at 1200 fpm”. The side-to-side air temperature variation was critical for achieving even drying/curing and subsequent product performance. The spec called for a variation that did not exceed +/-5°F. Special emphasis was put on this criterion in the design phase which included computer modeling via Finite Element Fluid Flow software and scale model testing. During the performance trials of the installed 100 foot dryer, the customer was astonished (it happens a lot!) to verify the side-to-side temperature variation of +/-0.6°F across the 16 foot wide web!!