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A Day Inside a High Current Connector Factory From Reel to Finished Part

MedlonUploaded:2026-07-10Browse:3


This blog article takes readers through a typical day inside the Shenzhen Medlon Hardware Product Co., Ltd. (MEDLON) factory, showcasing the journey of a high current connector from raw material to finished product. The narrative begins with the reception and inspection of high-conductivity copper alloys and thermoplastics, followed by design engineering where MEDLON’s R&D team applies proprietary technology to develop connectors like the YRT series, capable of 250A and 600V. The production process includes high-speed stamping of contact blades, precision plating (gold, silver, or tin), and injection molding of thermoplastic housings. Automated assembly lines then integrate components, with customization options for pin count, layout, and materials. Rigorous testing follows, including dielectric strength (3000V AC), insulation resistance (≥5000MΩ), contact resistance (≤2mΩ), and environmental durability across -55°C to +125°C, IP67 rating. Quality control systems ensure compliance with UL, IEC, and RoHS standards. Finally, connectors are packaged and shipped globally within 7-20 days. The article highlights MEDLON’s core competitive advantages: professional R&D, strict quality control, full-chain customization, multi-industry coverage (industrial automation, data centers, renewable energy, etc.), and global customer support. The summary encapsulates the factory’s commitment to precision engineering and reliable performance in demanding environments.




Step inside the bustling facility of Shenzhen Medlon Hardware Product Co., Ltd. (MEDLON), a leading manufacturer of power blade connectors, and witness the intricate journey from raw material to a fully finished high current connector. Established in 2006 and headquartered in Shenzhen, China, MEDLON has built a reputation for precision engineering and robust quality. This article takes you through a typical day at their factory, located at Room 302, Building C, Baoan New Generation Information Technology Industrial Park, where every connector is crafted with meticulous care.

Morning: Raw Material Reception and Inspection

The day begins with the arrival of raw materials. High-conductivity copper alloys, high-temperature resistant thermoplastics, and precision-stamped contact blades are delivered and inspected. MEDLON’s quality control team rigorously checks each reel of material against specifications. For instance, the copper alloy used in power blade connectors must meet conductivity standards to ensure low contact resistance (<2mΩ). The materials are stored in climate-controlled areas to prevent oxidation or contamination.

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Design and Engineering Precision

Before production, MEDLON’s R&D team, which holds proprietary technology and comprehensive product model naming systems, finalizes designs using advanced CAD software. The YRT series, supporting up to 250A and 600V, is a flagship line. These connectors are designed with high-conductivity copper alloys and thermoplastic housings that withstand -40°C to +125°C. Engineers also optimize pin layouts for low voltage (≤60V), medium (60-600V), and high voltage (>600V) applications, ensuring compliance with UL, IEC, and RoHS standards.

Stamping and Forming

Once designs are approved, the production floor springs to action. Metal strips from reels are fed into high-speed stamping presses. The stamping dies, crafted in-house, shape contact blades with extreme precision. Each stroke produces hundreds of parts per minute. For the YRT series, the blades are made of high-conductivity copper alloy and then undergo deburring and cleaning. The process is monitored by automated vision systems to detect any defects.

A Day Inside a High Current Connector Factory From Reel to Finished Part

Plating and Surface Treatment

The stamped blades move to the plating line. Depending on the application, they receive gold, silver, or tin plating. MEDLON uses eco-friendly plating solutions to meet RoHS requirements. The plating thickness is controlled within microns to ensure optimal conductivity and corrosion resistance. For signal connectors, advanced shielding technology is applied to minimize EMI/RFI interference.

Midday: Plastic Molding and Assembly

Meanwhile, the thermoplastic housing is injection molded. High-temperature resistant materials are fed into molding machines that produce housings with precise dimensions. For the YRT series, the housing is designed to achieve IP67 protection rating when mated. The molded parts are cooled and inspected for warpage or flash.

Automated Assembly

After plating and molding, the components converge on automated assembly lines. Robots place contact blades into cavities, stake them securely, and then insert locking mechanisms. For customized connectors, manual assembly stations handle unique pin counts or layouts. MEDLON’s flexibility allows for customization of pin count, layout, rated current, and material – from copper alloy to various plating options.

Afternoon: Rigorous Testing

Every connector undergoes a battery of tests. Dielectric strength testing at 3000V AC ensures insulation integrity. Insulation resistance is measured at ≥5000MΩ. Environmental durability tests simulate extreme conditions, including temperature cycling (-55°C to +125°C) and humidity. The YRT series passes these with flying colors, maintaining performance in harsh environments. Additionally, contact resistance is verified to be ≤2mΩ, ensuring efficient power transmission.

A Day Inside a High Current Connector Factory From Reel to Finished Part

Test Specification
Dielectric Strength 3000V AC
Insulation Resistance ≥5000MΩ
Contact Resistance ≤2mΩ
Operating Temperature -55°C to +125°C
Protection Rating IP67 (mated)

Quality Control Systems

MEDLON adheres to a strict quality control system. Each lot is traceable through a proprietary labeling system. Products are sampled for dimensional accuracy and functional tests. The company’s commitment to precision engineering ensures that every connector meets international safety standards. The factory floor features visual management boards displaying real-time quality metrics.

Late Afternoon: Packaging and Logistics

Once approved, connectors are packaged in anti-static bags and placed into boxes with custom foam inserts. MEDLON offers global services with a delivery cycle of 7-20 days, depending on order complexity. The logistics team prepares shipments for customers in industrial automation, data centers, renewable energy, automotive electronics, telecommunications, medical devices, and aerospace.

Customization and Customer Support

MEDLON’s customization capabilities are a core advantage. The company works closely with clients to develop tailored solutions, from voltage rating to mounting style (panel, PCB, or cable). Their technical support team provides 24-hour after-sales service and maintains a comprehensive online database with white papers and case studies.


Conclusion

A day at MEDLON’s factory reveals the blend of advanced technology and skilled craftsmanship that goes into every high current connector. From the reel of raw copper to the finished part, each step is optimized for quality and performance. With product certifications like UL, IEC, and RoHS, MEDLON stands as a trusted partner for industries demanding reliability. Whether it’s a power blade connector for a data center or a customized signal connector for medical equipment, MEDLON ensures that every connection is secure and efficient.

A Day Inside a High Current Connector Factory From Reel to Finished Part



Copyright 2006 © Shenzhen Medlon Hardware Product Co.,LTD
Contact window and Tel:Sally , 138 2886 2712,  E-mail:sally@medlonchina.com
Office Address:Room 302, Building C, Baoan New Generation Information Technology Industrial Park, No. 3, North 2nd Lane, Chuangye 2nd Road, Xin'an Street, Bao'an District, Shenzhen, Guangdong, China 
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