Plastic Injection Molding is involved in Stack Molding

To be found anywhere, Stack molds are some of the most amazing production tools. Truly a marvel is craftsmanship and engineering that goes into a stack mold.

It might look like a big and fancy piece of machinery that produces plastic widgets for the layman, who has never built a plastic injection mold for overmolding plastic part. Yet representing a very high level of expertise from the perspective, stack molds and a plastics mold maker are useful.

A stack mold

Stack molds are expensive

Stack molds are quite costly. Required to justify their expense, a high volume is required. However, the ROI is quickly realized in cosmetic or medical molding especially.

The expense is understandable, considering the tremendous amount of mold making and engineering involved. Mold makers who cut corners or build and Designing a stack mold are not for beginners! Plastic injection molding is on an entirely new level, and stack molding for overmolding plastic part supplier is not easy.

The applications for stack molds

For consumables and cosmetics such as toothpaste or deodorant containers, the common applications are these because they are for high production products. Produced using stack molds, medical and automotive products are also frequently.

To use soft over-molding, such as hairbrushes or toothbrushes, more and more products are being designed. For stack molding, these are perfect applications. In production costs and sequential cycles, it can be minimized because the part is ejected, over-molded, injection-molded and cooled.

The benefits of stack molding

The stack molding process offers many benefits like:

• Reduces the number of machines needed
• Enhanced productivity of overmolding plastic part manufacturer
• Without clamp tonnage or increasing press size, produce twice as many parts, which greatly reduces part costs
• Multi-cavity single face molds vs. Lower machine size requirement
• A good example of an application is producing the back and front parts of a key fob at the same time is for stack molding
• Run-time costs and Set-up time is divided by all the parts produced
• For everyone, Stack molds are not meant!
• No steps required or additional labor, Mold ejection functions are self-contained.