Stack Molds are a series of molding faces “stacked” together to create multiple faces or levels for molding.

Each level or face is a parting line and produces molded product.

The benefit of stack molding is to increase the output of a given molding machine and operation.

Special machine considerations are required to run stack molds, however Alpha’s technical team are well versed in providing guidelines and recommendations to ensure success when adopting a stack mold strategy.

Alpha Mold provides stack molds in 2, 3 and 4 level configurations based on part designs and volume requirements. Molds can also be converted from 2 to 3 to 4 levels as volumes increase.

In many cases, parts with a large projected area can be converted or built in a stack mold configuration, doubling the output of a given machine.