Wisconsin Oven designed and manufactured an electrically heated belt conveyor oven for a manufacturer of assorted mechanical steel springs used in a variety of products and industries. The oven, which is designed to temper several shapes and styles of springs, has a maximum temperature rating of 850°F with a normal operating temperature of 800°F. The system uses a ½-inch x ½-inch flat wire belt made of high-carbon steel and a variable-frequency AC drive with electronic torque limiting, adjusted and centered on a speed of 9 inches per minute.
The oven chamber is 1 foot, 8 inches wide x 15 feet long x 9
inches high, and the temperature is controlled by a Honeywell UDC2500
temperature controller. The supply air is delivered through a fully adjustable
boxed duct in a top-down airflow design for optimum efficiencies. The NEMA
12 control enclosure includes IEC-style motor starters, push buttons and pilot