Waupaca Foundry

Waupaca Foundry has a reputation as solid as the castings we create. They are the largest producer of gray, ductile, austempered ductile, and compacted graphite iron in the world, melting more than 9,500 tons a day. Our castings are produced using our custom built vertical green sand molding machines and created by a workforce that puts generations of expertise to work for our customers every day. Those customers trust Waupaca Foundry for high quality gray cast iron and ductile cast iron parts that are consistently the most durable, reliable, and innovative products on the market.