Engineered to handle high current loads and strict mechanical tolerances, supporting modern EV infrastructures in Hai Phong and beyond.
As northern Vietnam's premier port city and an industrial powerhouse, Hai Phong has transformed into a critical hub for the global new energy and electric vehicle (EV) supply chains. Hosting large-scale manufacturing campuses like the Dinh Vu-Cat Hai Economic Zone, Deep C Industrial Zone, and the massive VinFast automotive plant, the region requires a steady, reliable stream of ultra-high precision electrical pins, shafts, connectors, and switchgear hardware.
The demands of this regional cluster are exceptionally high. Connectors for EV charging systems, high-conductivity pins, and miniature circuit breaker (MCB) components must withstand tropical environmental conditions, high humidity, continuous duty cycles, and strict safety guidelines. Our specialized manufacturing facility delivers custom brass, copper, and alloy pins directly to assemblers and Tier-1 automotive suppliers operating in Hai Phong, ensuring zero-defect production pipelines.
By integrating advanced automation and strict ISO 9001 quality controls, we ensure that components such as cylindrical copper head parts and Molded Case Circuit Breaker (MCCB) shafts fit seamlessly into global electronics export programs from Haiphong Port.
Understanding the critical performance metrics that international procurement managers demand from modern industrial component suppliers.
EV fast chargers require copper pins with minimal electrical resistance to prevent thermal runaway. We employ oxygen-free pure copper (C1020) and tellurium copper alloys to ensure high conductivity and excellent machinability.
With electronic modules growing smaller, component deviations must be virtually eliminated. Our fully automated Swiss CNC lathes and high-speed stamping presses maintain strict dimensional stability batch after batch.
Coastal manufacturing zones like Hai Phong experience high relative humidity and salt-laden air. Our products are treated with advanced nickel, tin, or silver plating to prevent oxidation and maintain electrical integrity over decades.
Meeting the high-precision requirements of global infrastructure networks with validated manufacturing certifications.
| Component Type | Primary Material Choice | Typical Surface Treatment | Primary Application Area |
|---|---|---|---|
| EV Charging Pins & Sockets | C3604 Brass / C1100 Electrolytic Copper | Silver Plating (3μm - 5μm) / Gold flash | AC/DC Fast Charging Stations & Inlets |
| MCCB Internal Shafts | Carbon Steel / Stainless Steel SUS304 | Nickel Plating / Passivation | Molded Case Circuit Breaker Pivots |
| Miniature Circuit Breaker Rivets | High-Ductility Copper / Mild Steel | Bright Tin Plating / Zinc Galvanizing | MCB Structural Fastening & Terminal Links |
| Solenoid Valve Core Accessories | Electromagnetic Iron / Specialized Ferritic Alloys | Anti-corrosion coating / Chrome Plating | Automotive & Water Filtration Actuators |
Precision Component Foundations Built Over 25 Years of Systemic Innovation.
Zhejiang Jifeilong Instrument Technology Co., LTD. (formerly Yueqing Feilong Instrument Factory) was established in September 1999. Located strategically at the Oujiang Port in Wenzhou City, the company boasts complete production, processing, grinding, and quality testing departments.
We focus on the integrated manufacturing and wholesale of premium electrical switches, pins, shafts, hardware components, and precision plastic parts. Our high-conductivity terminals and robust mechanical rivets find extensive application in new energy vehicles, high-voltage solenoid valves, home appliance relays, and industrial filtration networks.
By transitioning to a fully automated manufacturing model, Jifeilong has succeeded in improving production output and removing manual variation. Our commitment to strict material qualification checks and post-machining validation guarantees compliance with international safety protocols.
Our operational framework is validated by ISO 9001 certifications and verified engineering processes.
ISO9001 Certificate
Factory System Certification
Material Quality Report
Explore our highly adaptable components built for low-voltage switchgears, automotive wire assemblies, and industrial control modules.
The rapid expansion of direct-current (DC) ultra-fast charging points requires our R&D department to continuously push material limitations. Current developments in automotive fast charging (480kW and above) necessitate pin connectors that support upwards of 500 Amperes. Under these extremes, traditional contacts experience micro-arcing and heating, which accelerates component breakdown.
To counter this, our future product development incorporates multi-point crown band spring structures within the female receptacle pins. This innovation increases the contact surface area, which dramatically reduces contact resistance to less than 100 micro-ohms (μΩ). Furthermore, our partnership with advanced electroplating factories allows us to deposit wear-resistant hard-silver overlays that survive more than 10,000 insertion/extraction cycles without mechanical degradation.
For electrical distribution grids, the introduction of IoT-enabled smart miniature circuit breakers demands micro-pins and mechanical trip links with sub-millimeter measurements. Our investments in high-end optical sorting machinery verify that every rivet shipped to Hai Phong’s electronics factories is measured for profile conformity, protecting high-speed assembly lines from expensive downtime.
Engineering heavy-duty copper cylindrical parts capable of sustaining 1000V/1000A profiles for heavy commercial vehicles.
Transitioning to lead-free copper alloys to meet forthcoming European RoHS environmental updates ahead of schedule.
Providing raw material batch tracking and dimensional logs on-demand for automotive OEMs.
Technical guidance and sourcing support for international purchasing managers and electrical design engineers.
Jifeilong
