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 Rolls are either received by commercial freight or by our own fleet of trucks, which covers an extensive area across the Midwest and beyond. Our quality procedure starts with an incoming inspection of the roll. This inspection includes reviewing a checklist which when completed is affixed to the roll. Any necessary core or journal repairs are reported to the customer. Once approved, these repairs are economically completed in our in-house machine shop.
After the rolls have been approved for recovering, they are stripped clean of all previous material, degreased thoroughly, and a bonding agent applied to ensure permanent bonding between metal and urethane. Universal Urethane can recover rolls with the bearings and couplings in place. Since the bearing and couplings are not removed, you save money on replacement and journal changes.
Following setup in a fitted mold and preheating in an oven to achieve proper casting temperature, the urethane is applied from one of our precision MAX/Metering/Dispensing machines. This technologically advanced equipment produces high quality cast rolls without porosity, cracks or voids.
The roll is then cured in a curing oven before the mold is removed. Curing time and temperature are carefully monitored. Proper curing time is critical to achieving a quality roll covering. The roll is also allowed a proper ambient cure time. This ensures the chemical curing process has been completed.
The roll is rough cut before being finished in one of our many grinders and lathes. The grinders and lathes are capable of accommodating rolls up to 60 inches in diameter and 20 feet in length. A roll finish is then applied according to customer specifications or our recommendation.
Before any finished project is shipped, it is subjected to a thorough final inspection process. This process ensures customer specifications have been met. Size, T.I.R., taper and durometer are among the many specifications noted. A copy of this inspection report is attached to each finished roll for customer records and a copy is kept on file at Universal Urethane for future reference.
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