Core pins are used in the plastic molding and die casting dies. They are a fixed element used to create a void providing the desired shape in the molded or cast part. It is often easier to machine a core pin as a separate element and add it to the A-side or B-side as needed. Steel core pins are sometimes used in aluminum molds to create tall, thin cores that might be too fragile if machined out of the bulk aluminum of the mold. The pins are also used for part ejection from a die.

Custom Core Pins: PT. Wilisindomas Indahmakmur offers a complete line of standard core pins and has the engineering expertise and experience to provide “special” and “custom” core pins for our customer’s existing as well as new applications. Our “special” and “custom” tooling results in our customers having improved in-plant productivity and quality performance as well as reduced manufacturing cost.