Pinpoint gate

A small gate, generally 0.75mm or less in diameter.

In multi-cavity molds, the dimensions of pinpoint gates must be held within very tight tolerances in order to fill all cavities at the same time. Pinpoint gates leave only a small, easily removed mark on the part, but the melt tends to freeze earlier and a third plate is often required for part removal. Pinpoint gates can also lead to high shear rate and high entrance pressure loss.

An indirect gate is a variant of a pinpoint gate. Indirect gates are used when the injection location must be transferred from the center of the part.