Metal Pins — Essential Precision Components Supporting Manufacturing Operations
In manufacturing, metal pins play a crucial role within molds, jigs, and machinery. These pins serve diverse purposes such as positioning, securing, guiding, ejecting, and punching, making them indispensable across industries ranging from industrial machinery and mold tooling to electronic component production.
Metal pins come in various shapes and materials tailored to specific functions and requirements. For example, positioning pins (guide pins) ensure precise alignment of parts and molds, contributing to dimensional accuracy in both processing and assembly. Meanwhile, ejector pins are used to expel finished products or scrap from inside molds, enhancing production continuity and automation.
Additionally, punch assist pins and centering pins are employed for specialized roles in metal processing, plastic molding, press operations, and assembly processes.
Materials
Materials commonly used for metal pins include stainless steel, die steel, and cemented carbide, selected according to the operating environment and required properties. These materials provide excellent wear and corrosion resistance even under demanding conditions.
For applications subject to heavy loads and severe wear, cemented carbide (such as tungsten carbide) is particularly effective. Cemented carbide offers outstanding wear and heat resistance, far exceeding that of standard steels, and contributes significantly to extended service life and sustained precision.
Key Selection Criteria
When selecting metal pins, the following factors are critical:
Appropriate material selection for the specific environment (including cemented carbide options)
Wear and corrosion resistance
Dimensional accuracy and custom shape requirements
By meeting these criteria, metal pins help improve product quality, stabilize manufacturing processes, and extend the longevity of equipment.
Conclusion
Though small in size, metal pins have a substantial impact on the stability and efficiency of manufacturing operations. Whether for machining, assembly, pressing, or injection molding, selecting the most suitable metal pin is essential. For high-load and high-precision applications, we offer proposals that include cemented carbide solutions. If you are considering process improvements for molds, equipment, or overall product quality, please feel free to consult with Taiyo Wire Cloth.
