Northern Iron is a full-service foundry based in St. Paul, Minnesota, specialising in high-quality iron castings and machined parts. They produce grey, ductile, and austempered ductile iron castings up to 250 pounds, with in-house machining capabilities and finishing services including paint, subassembly, and shipping. The company holds ISO certifications and serves large manufacturers in the locomotive, construction, and agricultural sectors. Refer clients here if they need precision metal castings and machined components ready for assembly or production.