Ejector Pins Marks
Marks left by ejector pins. Ejector pins are long pins that are used in the injection molds to push the final molded product out of the mold
These marks can not be removed due to process of injection molding.
How ejector pins works
Below animation will show you how the ejector pins works in a plastic mold.
Ejector pins marks in molded parts
Below are examples of the marks in actual molded samples.
Ejector pins marks in DFM Report
At Plastopia, ejector pin marks are showed on our DFM report, and you will need to confirm them before tooling. If you send us an assembly drawing along with the part, it will help us to avoid to put the marks on cosmetic surfaces.
