Erie Bronze & Aluminum

Glass Container Molds

Glass Container Molds

Erie Bronze specializes in bronze glass mold components such as neck rings, bottle molds and bottom plates. These components are cast using proprietary Eballoy® non-ferrous alloys designed to improve wear and corrosion resistance, while offering glass-makers thermal conductivity ranging from 18 to 37 (Btu/sq. ft./ft/hr/°ft) at 850°F.

Erie Bronze produces neck rings in an as cast or semi‐machined condition with the mating faces milled, one or more of the outside diameters turned and ends faced (additional features such as face vents can be included), or finish machined. Our in‐house machine shop measures each set for half on half and verifies the fit between the male and female halves (“shake”).

Upon request, Erie Bronze also offers our high quality neck rings with a nickel insert. The insert is available in Rockwell C hardness ranging from 30 to 44.