Sand Castings

From prototype castings to high volume production runs, from one casting to thousands, weighing from ounces to eight hundred pounds Trio Foundry can provide your Aluminum, Bronze, Brass, Copper and Zinc parts. Since 1909 we have produced a myriad of solutions to our customer’s needs.

In House Machine Shop

Our CNC machining department can machine your part requirements for one piece or for many thousands. Sub assembly, heat treating, polishing, burnishing are provided with in house capabilities. In addition anodizing, painting, plating, and honing processes are subcontracted to our partners.


Our castings are produced from certified ingot. We provide x-ray and penetrant inspection, as well as chemical and physical certifications utilizing independent laboratory testing.