as for three-plate mold, it has the following features:

1) it’s gate can be located at the middle of the plastic part.

2) it allows pin-point gates.

3) it may eliminate cutting off the gates manually, when pin-point gates or submarine gates are used.

4) it has to take out both the part and the runner respectively.

5) the injection molding machine should have sufficient mold opening distance.

6) it has a complex structure, more problematic and less durable.

7) it carries a higher mold cost.

8) it has a long molding cycle.