Top 10 Copper Busbar Manufacturers in China (2025)
The global electronics industry is developing towards high power, high density, and miniaturization. End products (such as home appliances, new energy vehicles, power modules, and smart devices) are constantly increasing their performance requirements for connection, conductivity, and elastic structural components, which directly drives the growth demand for precision metal components such as springs, PCB terminals, and copper busbars.
The rapid growth of new energy vehicles has led to a significant increase in demand for high-current, high-reliability conductive components, such as high-current PCB terminals, high-conductivity copper busbars, and fatigue-resistant springs, all of which are entering a stage of rapid growth.
The demand for metal contact components in the home appliance and power module industries has remained stable for a long time. In particular, after the improvement of energy efficiency standards, the requirements for materials, current carrying capacity, temperature resistance and reliability are higher.
China remains the global center for electronic component manufacturing, possessing a complete industrial chain from copper materials, stamping, turning, electroplating to assembly, with significant advantages in manufacturing costs and supply chain speed.
Company Introduction：
Established in 2005, Dongguan Haocheng Hardware Spring Co., Ltd. is a highly specialized manufacturer dedicated to precision metal springs, stamped components, CNC-machined parts, busbars, and automotive assemblies.
Over the years, the company has built a robust quality management system and has been accredited with ISO9001:2015, IATF16949, and the AAA Measurement Management System. Products also comply with CE and UL requirements, supported by more than twenty national invention patents.
manufacturing campus covers 20,000 square meters, including over 10,000 square meters of fully equipped production facilities. workforce of more than 200 highly trained technical professionals, Operate advanced automated production equipment and maintain rigorous quality control processes to ensure consistency, precision, and long-term reliability.
They serve a broad spectrum of industries, including home appliances, new energy vehicles, power modules, and intelligent devices. With strong engineering expertise and robust manufacturing capabilities, they provide customers with high-precision components and customized connection solutions that meet stringent global standards.
Company Introduction: Founded in 2005 and headquartered in Wuxi, Jiangsu Province, the company focuses on the R&D and manufacturing of high-precision copper busbars and special copper alloys. It possesses a German SMS rolling production line and Japanese OTC continuous extrusion equipment, with product conductivity ≥101% IACS and tolerance control down to ±0.5mm. The company provides ultra-thin battery connectors for new energy vehicle manufacturers and low-loss grounding copper busbars for data centers. Annual production capacity is 80,000 tons, and it has passed IATF16949 automotive-grade certification.
Company Introduction: The first domestic enterprise to industrialize the production of aluminum alloy composite busbars. Its independently developed “aluminum core copper clad” busbar reduces weight by 40% and cost by 30% compared to pure copper products, while achieving a conductivity of 85% IACS. Products are used in photovoltaic power plants, rail transportation, and other fields. The company holds 23 invention patents and participated in drafting the GB/T standard for “Composite Busbars”.
Company Introduction: A provider of Industry 4.0 bus solutions. Their products integrate online monitoring systems for temperature, current, and power quality, transmitting data wirelessly to a cloud platform via LoRa. Their “predictive maintenance” system can provide 48-hour advance warning of joint overheating risks. They have partnered with Huawei Digital Power to develop intelligent busbars for data centers, reducing PUE by 0.05.
Company Introduction: One of the few domestic enterprises specializing in special busbars for offshore platforms and ships. Products are certified by DNV-GL and CCS classification societies, with salt spray resistance exceeding 5000 hours and vibration resistance rating of 10-2000Hz. Provided the entire shipboard power distribution busbar system for the “Xuelong 2″ polar research vessel and the South China Sea drilling platform.
Company Introduction: A specialist in photovoltaic energy storage busbars. Its “intelligent DC busbar” integrates PID protection and arc fault detection (AFCI) functions, reducing the fire risk of photovoltaic power plants; its flexible connection busbars for energy storage support ±5mm misalignment of battery clusters. A strategic supplier to leading companies such as CATL and Sungrow Power.
Company Introduction: A provider of high-power charging connection solutions. Their liquid-cooled supercharging bus supports a continuous current of 1000A, and with an active cooling system, the temperature rise is controlled below 35K. Products are used in Tesla V4 Supercharger stations and NIO battery swapping stations. Supports a “plug-and-expand” modular design, enabling charging pile power upgrades in 15 minutes.
Company Introduction: A busbar expert serving cleanrooms in the semiconductor and biopharmaceutical industries. Our products feature 304/316L stainless steel casings, an internal positive pressure design to prevent particle intrusion, and a surface roughness Ra≤0.8μm. The non-leaching, low-volatile materials meet ISO Class 1 cleanliness standards. We provide cleanroom power distribution solutions for SMIC and WuXi Biologics.
Company Introduction: A military-to-civilian technology company specializing in high-current busbars. Products can withstand short-time currents up to 400kA/1s, used in electromagnetic catapult test platforms and pulse power supplies for large laser devices. In the civilian sector, they provide special short-network busbars for electric arc furnaces in steel plants and electrolytic cells in aluminum plants.
Company Introduction: The first domestic enterprise to industrialize the production of aluminum alloy composite busbars. Its independently developed “aluminum core copper clad” busbar reduces weight by 40% and cost by 30% compared to pure copper products, while achieving a conductivity of 85% IACS. Products are used in photovoltaic power plants, rail transportation, and other fields. The company holds 23 invention patents and participated in drafting the GB/T standard for “Composite Busbars”.
We suggest that when selecting metal connectors such as springs, PCB terminals, and copper busbars, you should focus on product consistency and long-term reliability.
Haocheng has significant advantages in its quality system:
These certifications and technical strengths ensure that the products we provide can operate stably even in harsh environments.
For customers requiring long-term supply, stable production capacity is crucial. Your advantages can be summarized as follows: Factory area: 20,000㎡, Production workshop: 10,000㎡ Over 200 professional technicians Automated production lines ensure large-volume supply and stable delivery times.
We excel at customization based on customer drawings, samples, or current requirements. From material selection (brass, copper, beryllium copper) to structural optimization, our engineering team can:
We highly recommend Dongguan Haocheng Hardware Spring Co., Ltd.!