Precision Contact Solutions for Global Industries
Over 10 years of expertise in silver alloy wires, contact rivets, electrical contact tips, and advanced CNC machining parts.
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Over 10 years of expertise in silver alloy wires, contact rivets, electrical contact tips, and advanced CNC machining parts.
Explore ProductsShanghai ZHJ Technologies Co., Ltd. was established in 2007 with a singular mission: to focus on contact material innovation. As a national torch plan hi-tech enterprise, we are committed to solving complex challenges in electrical contact materials using modern science and technology.
With over 20 years of experience in precious metals processing and deep expertise in current-carrying electrical connections, SHZHJ has become a trusted partner for companies across diverse industries and global markets.
From material development to final delivery, we offer comprehensive solutions tailored to your needs.
Sustainable solutions through advanced recycling of precious metals, ensuring cost-efficiency and environmental responsibility.
High-precision and flexible metal stamping capabilities for complex contact geometries and tight tolerances.
Complete contact assemblies with integrated plastic molding, reducing supplier interfaces and improving reliability.
High-performance contact solutions for demanding electrical applications
High-conductivity wires for electrical contacts, available in various diameters and compositions including AgCdO, AgSnO2, and AgNi.
Trimetal, bimetal, and solid contact rivets for switches, relays, and circuit breakers with superior arc resistance.
Precision tips for high-current switching applications, engineered for long life and stable contact resistance.
AgW, AgC, AgWC, and other composite materials manufactured through powder metallurgy for consistent performance.
Complete welding and riveting assemblies with integrated design for simplified integration and enhanced reliability.
Rail vehicle contacts including EMD 8441833, GE 3X6660, EMD 8409388, and other OEM replacements.
Custom precision components for electrical systems, manufactured with tight tolerances and high repeatability.
High-melting-point tungsten-based contacts for extreme temperature and high-current interruption applications.
Compact contact solutions for push buttons, control panels, and user interface devices.
Engineered for dynamic applications requiring consistent contact pressure and wear resistance.
Spring-loaded contact systems for reliable connection in connectors, battery holders, and test equipment.
Tailored contact geometries and material compositions to meet unique application requirements.
From concept to delivery – a proven development process
Understanding your specific application requirements and performance expectations.
Developing a customized technical solution based on material science and application engineering.
Detailed design and simulation to ensure optimal performance and manufacturability.
Rigorous testing of prototypes under real-world conditions to validate performance.
Small-scale production run to verify process stability and quality consistency.
Full-scale production and on-time delivery with complete traceability and documentation.
We specialize in silver-based alloys including AgCdO, AgSnO2, AgNi, AgW, AgC, and AgWC, as well as tungsten and bimetal/trimetal composites for electrical contacts.
Yes, we provide full custom development from technical scheme to prototype testing and mass production based on customer requirements.
Our products are used in power distribution, rail transportation, industrial automation, automotive, and renewable energy systems worldwide.
We perform 100% inspection on all products before shipment and provide a test certificate with every delivery.
For inquiries about our products or pricing, please visit our official website to contact us directly.
Visit Official Website
No.1234, Xinsongjiang Road, Songjiang
Shanghai, China
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