1.The length of leader pins must meet certain demand

1.1  Leader pins installed on the A side unless customer specified;

1.2  To prevent the collision between cavity and core block when mold closing, the length of leader pins should be paid special attention in the following condition:

2.The pocket for straight side lock,round interlock and other interlocks should be machined simultaneously ( the two mold halves were  assembled together) whenever possible.

3.The fitting length of leader pins should be 1.5 times or bigger than the fitting diameter whenever possible, especially in the case of 3 plate mold or floating A plate design as shown below:

4.For the connector mold, It’s vital to has a precise guiding of mold base to prevent the chance of flashing: