what is the ejector PIN ?
it is a steel spare in plastic injection mold . the surface is very smooth ,it look like a pen , so we call the steel parts is “pen “.
what’s the function in the plastic injection mold ?
it can eject the plastic products from the mold .it avoid the plastic products gule in the mold .
how much kind of the ejector PIN ?
standard mold spare parts ,the size from R1-R20
you also make it according your 2D drawing !
