Mold Gates

While injection molds tools are hard to design and manufacture, their core concepts are easy to understand. The mold itself consists of two faces, between which is the cavity and core set into which the plastic is injected. The plastic – which, like its namesake implies, is injected into the mold through a sprue that feeds the runner plastic enters the mold’s cavity through the gate. The gate is the literal gateway of plastic into a cavity/core and therefore can make or break a mold. Too small and the mold cannot fill completely; too large and the plastic is too hard to shear. [Read more…] about The Importance of Gate Design and Gate Size in Injection Molding