Caldwell Casting Co., Inc., Cambridge, MD is an aluminum and zinc die casting company which serves a variety of commercial and Department of Defense users. In business for 66 years, we have made millions of parts using all varieties of aluminum and zinc alloys. Based in Maryland's rural Eastern Shore and with a dedicated work force, we offer surprisingly low cost parts made to very close tolerances. For new projects we have extensive product engineering and tool design experience to help you make the product you want at a cost you need.