RO Upgrade Improves Production, Quality at Texas Finisher
Rangaire produces range hoods with a class A finish at a rate of about 6,500 or more per shift. The cosmetic requirement of this product is high; excellent gloss and zero defects on appearance surfaces are mandatory. Pure water for rinsing is one of the keys to good gloss and adhesion, as well as final removal of particulate contamination after phosphating.
The problem was that the RO system was undersized by design when it was purchased almost 12 years earlier, the idea being that the holding tank would provide enough capacity so that the system could keep up during the day and catch up at night. When Rangaire added a second production shift, the RO immediately was a problem.