Wisconsin Oven Corp., East Troy, Wis., has shipped two steam-heated batch ovens to a leading manufacturer of industrial products for curing a water-based adhesive applied to rolls of sandpaper. The adhesive is needed for the sand to stick to the paper, and curing the adhesive provides for a more durable product. These ovens are a duplicate of a previous order, and were needed to meet increased production demands.
The curing ovens have a maximum operating temperature of 300°F and work chamber dimensions of 17.5×21.3×7.5 feet. The customer required temperature uniformity of ±5°F at 240°F for each batch oven, with uniformity verified by a twenty-point profile test. These ovens have sufficient capability to heat 35,000 pounds of product from 70°F to 240°F within two hours, and cool the load down to 140°F within three hours.
These batch ovens feature top-down airflow that is distributed through the work chamber by factory preset nozzles. Jumbo suction fans draw hot air through all the layers of the sandpaper rolls. The airflow arrangement provides optimum air flow efficiencies along with maximizing heating rates and temperature uniformity.
“At Wisconsin Oven, we pride ourselves on new and innovative designs,” says Tom Trueman, Application Engineer. “For this project, large suction fans were used in the design to ensure that the hot air was drawing through all layers of the roll for a uniform cure of the adhesive.”
