A Core Insert is a vital component of a mould used in injection moulding, designed to form the internal shape of a part—such as threads, necks, or hollow sections in preforms and containers. Made from hardened tool steel or wear-resistant alloys, core inserts ensure dimensional precision, smooth ejection, and high durability. These inserts are replaceable, allowing for easy maintenance and extended mould life. They are crucial in industries like packaging, automotive, and medical where internal geometry is critical to part performance.
