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Waupaca Foundry, Inc., North America's leading supplier of iron castings to the automotive, commercial vehicle, agriculture, construction, and industrial markets, produces gray iron castings, ductile iron castings, HNM™ series high-strength ductile iron, and austempered ductile iron castings using state-of-the-art processes and technology. The manufacturer also specializes in precision machining and assembly. Waupaca Foundry is Headquartered in Waupaca, Wisconsin and operates six iron foundries located in Waupaca, Wisconsin, Marinette, Wisconsin, Tell City, Indiana, and Etowah, Tennessee. The company operates machining and assembly in Waupaca, Wisconsin and Effingham, Illinois. Waupaca employs approximately 4,500 people.  

Waupaca Foundry has a rich history that started long before operations began in 1955 when Clifford Schwenn purchased Pearson Foundry Machine Shop in Waupaca, Wisconsin. During this period the foundry employed 13 and poured 2-3 tons daily. Today, Waupaca Foundry employs 4,500 people and melts 9,500 tons of iron daily at plants located throughout the US. It is also operates two vertically-integrated machining operations for air disc brakes in Waupaca, WI. and automotive suspension components in Effingham, IL.