Precision Stamped Metal Coil Spring Terminals

Cylindrical metal components with continuous helical teeth, typically used as male pins or contacts in connector systems. The sidewalls feature uniform longitudinal elastic slots formed through a coiling process, providing radial resilience. This ensures stable positive force when mating with female sockets, maintaining low contact resistance and preventing signal interruption.

The manufacturing process utilizes high-speed progressive die stamping and coiling to transform strip metal into tubular structures. Key controls focus on outer diameter consistency, opening gap, and overall straightness. To address springback and deformation issues common in thin-walled tubing during high-speed forming, production relies on high-precision molds and high-speed presses with 0.005mm accuracy. Optical image measuring instruments are used for 100% inspection of micro-features to guarantee dimensional stability in mass production.

Our factory holds dual IATF 16949 and ISO 9001 certifications. We support processing of conductive and elastic materials such as brass, phosphor bronze, and stainless steel, with optional plating options including gold, silver, nickel, and tin to meet corrosion resistance and low impedance requirements. Quotations are evaluated based on specific 3D drawings, material grades, plating specifications, and expected order volumes. These terminals are ideal for precision connection needs in communication equipment, automotive electronics, and industrial control sectors.