In the high-precision landscape of Industrial Automation, the terminal block is far more than a simple connector; it is the fundamental bridge for signal integrity and power stability. Cixi Lupu Electronics Co., Ltd., established in 2017, has emerged as a cornerstone manufacturer for the automation sector. Our commitment to engineering excellence is reflected in our 15EDG and 2EDGK plug-in terminal block series, which are designed to meet the rigorous demands of PLC systems, CNC machinery, and robotic control modules.
Engineering Precision: 15EDG and 2EDGK Series
The core of our industrial catalog lies in the modular flexibility of the 15EDG and 2EDGK series. Available in multiple pitches—including 3.5mm, 3.81mm, 5.0mm, and 5.08mm—these connectors facilitate rapid assembly and maintenance. By utilizing high-conductivity Phosphor Bronze for our contact materials, Lupu ensures that electrical paths remain stable under continuous vibration. In industrial environments where machine uptime is paramount, the ability to swap control modules without de-soldering is a significant advantage provided by our plug-in architecture.
Our 15EDGVC and 15EDGRC headers are engineered for both vertical and horizontal mounting, providing PCB designers with the versatility needed for high-density layouts. Since 2017, we have refined our CCD visual inspection protocols on our automated production lines, which now boast a monthly capacity of 8.5 million poles. This scale allows us to provide consistent quality to Tier-1 automation OEMs globally while adhering to ISO 9001:2015 quality management standards.
Material Science: T2 Copper and PA66 Integrity
The longevity of a terminal block in an industrial cabinet is dictated by its material composition. Lupu Electronics exclusively uses T2 Electrolytic Copper for all conductive components. Unlike recycled brass found in lower-tier products, T2 copper provides superior electrical conductivity and prevents localized overheating, which is critical for long-term reliability. Our housings are forged from high-grade Polyamide 66 (PA66), which offers exceptional dielectric strength and aging resistance, ensuring that the terminals do not become brittle or lose their tensioning force over decades of service.
The LP128 series terminal blocks are engineered to redefine the limits of mechanical endurance through superior metallurgy and precision engineering. The screws utilized in the LP128 series undergo a proprietary thermal hardening process, ensuring they can withstand high-torque applications without thread deformation. Leveraging an internal manufacturing tolerance of ±0.02mm, the engagement between the screw and the terminal cage is nearly perfect, distributing clamping pressure evenly across the wire. While global standards like UL and VDE set specific torque benchmarks, Lupu’s internal testing protocols require our components to withstand 130% of the rated torque, providing a critical safety margin for field installations in high-vibration environments.
Environmental factors—humidity, salt spray, and chemical vapors—are the primary enemies of electrical conductivity. The LP128 series employs a sophisticated Matte Tin (Sn) plating process to ensure decades of reliable service. Unlike traditional bright tin, which is prone to "tin whiskers" that cause microscopic metallic growths and electrical shorts, our Matte Tin finish provides a stable, whisker-free surface ideal for high-density PCB mounting. Each component features a high-purity T2 Copper core protected by a nickel underlayer. This layer prevents copper-tin intermetallic growth, maintaining low contact resistance even during continuous high-temperature operation. The Matte Tin surface forms a dense, self-healing oxide film that blocks oxygen penetration, making the LP128 series particularly effective in renewable energy and medical infrastructures where atmospheric chemical resistance is mandatory.
Cixi Lupu Electronics has evolved from a precision workshop in 2017 into a global manufacturing powerhouse. Our history is a testament to the pursuit of absolute consistency through technology. Founded with a focus on in-house mold R&D, we achieved a ±0.02mm precision standard that serves as the DNA for every product we manufacture. As demand increased, we transitioned from manual assembly to a fully integrated, modular automation system, allowing us to scale to a monthly capacity of 8.5 million poles while eliminating human-induced variables. Our current production lines are equipped with 100% CCD automated visual inspection. Every terminal is scanned in real-time against a digital master blueprint; any unit with a microscopic defect is automatically quarantined, ensuring a zero-defect shipment to our global OEM and ODM partners.
