TBT: Setting A Standard in Hot Runner Design

Keeping hot runner system costs down is key to efficient injection mold design.

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Hot runner systems can significantly add to the cost of building a mold, especially when the mold is complex, and parts being molded have intricate features. But don’t let complexity keep you from finding ways to reduce the number of dollars spent on the hot runner system. Today’s Throwback Thursday feature tells you how.

Author Brenda Clark is the engineering manager at HASCO America, Inc. Clark presents some great tips for using standardization to reduce hot runner expenses, and she breaks it down for the reader according to the main components that make up the system. For example, there are several standard sizes of blank hot-runner manifold blocks available off-the-shelf. Clark says that by “limiting machining on the manifold to only the inner melt flow bore, while keeping the outer size and heating values unchanged, allows use of the same stock manifold block in a wider variety of process applications. This also enables manifolds to be completed in days, not weeks.” As time is also money, this alone sounds like a viable option for cutting costs without compromising quality or performance of your molds.

Take a few minutes to read “Setting A Standard in Hot Runner Design,” and then check out another informative feature just released in MMT’s December issue: “Collaborative Hot Runner Design to Improve Mold Performance,” for more on hot runner system best practices. Also, don’t forget about our special hot runner supplement from October, which you can access here.

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