In general, selection of cashew gate insert size would be the same as designing a custom submarine or edge gate in a mold, feeding off of a runner. If you are designing a mold and are unfamiliar with designing with submarine gates, we recommend that you consult a knowledgeable mold design house or shop who has experience with designing molds with submarine gates that feed off of runners. If you wish to have a Mold filling analysis performed by DME for your molded part design, this is a service that DME can provide at a fee. Please contact your DME Sales Representative or call us for details on the Mold Filling Analysis Service that we offer.
Some very general rules of thumb include feeding one or two cashew gate inserts off of a single runner. In the case of two cashew gates being fed off of one runner, the length and size of runner feeding each cashew gate insert should be balanced with the same cross section and length. It is also not recommended to feed more than two cashew gates off of one runner, and not in a star pattern or partial star pattern, as this can affect how the molten plastic flows to along the runner that feeds each cashew gate insert. For more details on designing with submarine gates, please consult an experienced mold design house or shop.