November 10, 2026
You know what are the key manufacturing steps for polyester film capacitor terminals?
A reliable WML polyester film capacitor depends not only on its dielectric materials but also on the quality of its conductive connections. Aluminum terminal posts play an important role in connecting the capacitor electrodes to external PCB circuits.
As an experienced audio capacitor supplier, WEET pays close attention to every manufacturing detail. Today, let's take a look at two important processing stages in the production of aluminum terminal posts for our WML Series capacitors.
The first photo shows aluminum billets after CNC turning. Original aluminum rods are cut and machined into uniform cylindrical studs, with burrs carefully removed.
During this process, we strictly control the diameter, length tolerance, and end-face flatness. Consistent dimensions and smooth surfaces provide a reliable foundation for the subsequent welding process, helping reduce the risk of poor connections and conductivity issues.
The second photo shows aluminum studs after precision lead wire welding.
After positioning and drilling, thin conductive lead wires are welded firmly to the end of each aluminum stud, forming a complete terminal assembly.
This delicate process requires careful control of welding position, joint quality, and wire alignment. WEET also performs quality checks to identify potential defects such as cold welding, wire misalignment, wire burn-through, and insufficient welding strength.
CNC turning and lead wire welding are closely connected. The dimensional accuracy and surface quality of aluminum billets directly affect welding consistency and the reliability of the finished terminal posts.
WEET implements process controls to prevent scratches, contamination, and oxidation during workpiece transfer. We also maintain consistent quality across sampling and mass production.
As a professional audio capacitor supplier, WEET focuses on reliable manufacturing and consistent product quality.
Our WML Series metallized polyester film capacitors feature a compact design, high reliability, and excellent self-healing properties. With customizable aluminum terminal posts, WEET can accommodate different customer requirements and capacitor specifications.
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E-mail: sales@weetcapacitor.com
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