About Ejector Pin Introduction

Ejector pins are available with a variety of features depending on the application for which they were designed. Some common ejector pin features include:

Material: Ejector Pins are usually made from hardened steel, or other high strength alloys. This is to meet the requirements of injection molding.

Ejector pins are available in different shapes for the tip, including flat, beveled or pointed. This allows them to meet specific ejection needs and minimize damage.

Surface Treatment: Ejector pins can be treated with nitriding, or coated with titanium nitride for increased hardness, reduced friction, and wear resistance.

Head Design: The head of ejector pins is often shaped like a shoulder or a head, which allows them to be attached securely to the ejector plates or other mechanisms for ejection in the mold.

Size and Length Ejector pins are available in a variety of sizes and lengths that suit different part geometries and mold configurations.

Pin Retainers : Ejector pins may be fitted with sleeves or pin retainers to prevent movement and ensure correct alignment.

Venting: Certain ejector pins have venting features such as grooves and channels to release trapped gas or air during ejection.

Ejector pins may be polished to reduce the likelihood of scratching and marking parts during ejection.

Anti-Corrosion: Ejector pins can be coated with special materials or coatings that have corrosion-resistant properties. This ensures longevity and prevents degradation caused by exposure to chemicals or moisture.

Not all ejectors pins have all of these features. Their availability can vary depending on their manufacturer and product line.