two-plate mold and three-plate mold are basic mold structure, at first, the features of two-plate mold are:

1) simple structure, easy to operate, and satisfactory to have the plastic part to drop off freely.

2) minimal operational problems, long lifespan, and shortened molding cycle.

3) inexpensive mold cost.

4) easier to choose gate shape and location.

5) other than direct gates, gate location is limited to the side of the plastic part, with certain exceptions.

6) after molding, there is a need to cut off the gate from the part.