Stack mold is a mold with a series of same cavities and cores to produce the same parts in one mold.
Compared to conventional single-face molds, stack molds can virtually double the output of an injection molding machine by distributing the plastic melt into two or more separate mold parting surfaces. The defining characteristic of a stack mold are the two (or more) mold parting surfaces or mold split lines.
A stack mold does not require much more clamp force than a single face mold because the projected part surface areas of the cavities on both sides of the center block cancel out each other's force.
If you want to double your production per molding machine, then stack molds might be for you. Please do not hesitate to contact us!
The article comes from China injection mold manufacturer - Mold Best Assurance Company Limited, website is www.mbamoldanddesign.com