Gate
Gate is also known as gate location or filling gate. It refers to the portion of the mold where resin enters the mold cavity.
It plays a role of the link between the part and the runner system.
Gates in injection molded parts
Below pictures are to show you where you can see the gates in molded components.
The “white marks”showed on the above photos are called Gate Vestage, which were left by the cold runners. They are usually trimmed manually or cut off automatically by injection machines.
Types of Gates
There are 4 common types of gates for mold design:
Edge Gate
Sub Gate
Direct Gate
Hot Tip Gate
Design Guide for Injection Molding
Gates in DFM Report
At Plastopia, we provide a DFM report to suggest where the gates should be. You don’t have to analyze the gates yourself, but need to confirm them before tooling. Here are 2 examples:
*Notes: