For years, the silver contact manufacturing industry has faced a persistent challenge: traditional cold heading molds lack adaptability and are difficult to control with high precision. Since mold accuracy directly determines the dimensional consistency, structural strength, and electrical conductivity of contacts, these limitations have hindered flexible production and compromised batch quality across multi-specification requirements. Manufacturers have long sought a solution that can accommodate varying contact sizes while maintaining strict tolerance control.
A breakthrough solution arrived on January 13, 2026, with the official granting of a utility model patent titled "A Mold for Cold Heading Molding of High-quality Copper-Silver Contacts" (Patent No.: CN223789483U). Featuring a modular structure, this patented mold enables precise fine-tuning of cavity height and molding accuracy, while an integrated limiting structure ensures stability during adjustment. The design is compatible with producing copper-silver contacts of various sizes and shapes, effectively resolving long-standing industry pain points of poor adaptability and difficult precision control. This innovation brings dual improvements in both precision and adaptability to the contact manufacturing industry.
The significance of this patent extends beyond the mold itself. Cold heading remains one of the core processes in silver contact manufacturing, and this adjustable cavity design provides important technical support for large-scale, high-quality production. By enabling flexible production of multi-specification contacts while improving molding stability, the technology creates new possibilities for manufacturers seeking to balance efficiency with precision.
This technological advancement comes at a critical time. The rapid development of power equipment, new energy vehicles, and industrial automation has placed higher demands on the precision, reliability, and customization capabilities of silver contacts. As core components for circuit switching and signal transmission, solid silver contact rivets directly affect conduction efficiency and service life in low-voltage electrical switches, relays, and contactors. The industry is increasingly driving solid silver electrical contacts toward higher precision, stronger performance, and more flexible customization.
Against this industrial trend, Xiamen Apollo Electric Co., Ltd. has deeply rooted itself in the field of solid silver contacts. Focusing on precision conductive demands in low-voltage electrical appliances and new energy applications, the company provides high-quality pure silver and silver-alloy solid contact products. Relying on mature cold heading molding and precision machining processes, the company strictly controls dimensional tolerance, material purity, and surface quality, making their products suitable for applications with different current loads, switching frequencies, and working environments.
To meet the industry's demand for high precision and reliability, Xiamen Apollo Electric Co., Ltd. has carried out targeted optimizations across three key areas. In material selection, high-purity silver and silver-based composite materials such as silver-nickel and silver-tin oxide deliver excellent conductivity and arc-erosion resistance while complying with RoHS and other international environmental standards. In molding processes, drawing on the new cold heading mold technology, the company optimizes molding parameters and mold matching to control contact dimensional tolerance within ±0.05 mm, ensuring batch consistency. In surface treatment, polishing and anti-oxidation treatments reduce contact resistance fluctuations and enhance adaptability in harsh environments such as humidity and corrosion.
Today, solid silver contacts from Xiamen Apollo Electric Co., Ltd. are widely used in low-voltage electrical switches, relays, contactors, and circuit breakers. By providing stable and efficient core conductive component support for downstream OEMs, the company helps electrical equipment achieve performance upgrades and quality breakthroughs. Looking ahead, with continuous iteration of key processes such as cold heading molding, Xiamen Apollo Electric Co., Ltd. will further deepen technological innovation, optimize product performance and delivery efficiency, and deliver solid support for the high-quality development of power equipment and new energy industries.
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