Hubei Dayu Hanguang Vacuum Electric Co., Ltd.H1.B37Hubei Dayu Hanguang Vacuum Electric Co., Ltd. was established in 2007 and is located in the Xiaogan High‑tech Development Zone, Hubei Province. It is a strong technology‑oriented enterprise. The company covers an area of 50,000 square meters with a building floor space of 20,000 square meters, total assets of RMB 140 million, and a staff of over 100, including 15 professional R&D technicians. Leveraging solid technical expertise and innovation capabilities, we are committed to providing high‑quality vacuum interrupters, embedded poles, and vacuum components for the power, rail transit, green energy, and nuclear energy industries.
On March 20, 2009, the first academician expert workstation in Hubei Province was officially established at our company, driving technological innovation with top‑tier intellectual support. We have been awarded numerous honors, including National High‑tech Enterprise, Provincial Science and Technology Achievement Award, National Specialized and Sophisticated “Little Giant” Enterprise, Hubei Intellectual Property Demonstration Enterprise, Hubei Hidden Champion Enterprise, Provincial Sci‑Tech Innovative “Gazelle” Enterprise, and Advanced Enterprise for Social Contribution.
Dayu Hanguang is an integrated enterprise covering R&D, production, sales, and technical services for vacuum interrupters, embedded poles, and various vacuum components. We currently offer more than 180 product models, with voltage ratings from 1.14 kV to 40.5 kV, rated currents from 200 A to 5,000 A, and short‑circuit breaking currents from 6.3 kA to 50 kA. Our main products are vacuum interrupters and embedded poles suitable for indoor and outdoor vacuum circuit breakers, environmentally friendly switchgear, gas‑insulated switchgear, solid‑insulated switchgear, wind‑power circuit breakers and load switches, contactors, and load switches. We also provide custom development based on customers’ on‑site working conditions. Our products are widely used in power, metallurgy, mining, petrochemicals, railways, broadcasting and communications, industrial high‑frequency heating, and other full‑range distribution systems, with complete specifications and strong adaptability. After several production line expansions and upgrades, our annual production capacity for vacuum interrupters has reached 300,000 units. According to statistics from the China Vacuum Electron Industry Association, our vacuum interrupter output has ranked among the top in the industry nationwide for three consecutive years since 2021.
In terms of manufacturing, we have a full set of advanced production equipment and modern assembly lines, adopting leading processes, high‑precision equipment, rapid leak‑detection technology, and specialized aging techniques to fundamentally reduce the leakage rate, effectively addressing common issues such as poor airtightness, short service life, and insufficient stability. The entire production process is standardized and systematized. All key components are sourced from well‑known domestic brands and strictly inspected according to national standards before warehousing. The workshop is equipped with high‑precision measuring and testing instruments, and each process is supported by standardized work instructions. Strict quality control is enforced at every stage—from in‑process inspections and step‑by‑step checks to final tests—ensuring product consistency and reliability, so customers can use our products with confidence. The company has obtained ISO 9001:2015 Quality Management System and ISO 14001:2015 Environmental Management System certifications, and has fully implemented an ERP management system to standardize production, management, and operations.
We regard technological innovation as the core foundation of our development. The company places great emphasis on talent acquisition and development, having built an experienced team of R&D, management, and skilled technicians. We also collaborate with domestic universities, research institutes, and experts from foreign enterprises to form technical advisory groups that regularly tackle challenging technical issues. To date, we have accumulated 52 national patents, including 13 invention patents. Our independently developed vacuum interrupters for capacitive load switching have passed provincial‑level appraisal and are recognized as domestically leading and internationally advanced. The vehicle‑mounted long‑life vacuum interrupter, jointly developed with Xi’an Jiaotong University, has been rated as a national key innovative product. Our new long‑life vacuum interrupter was selected for the Ministry of Science and Technology’s Innovation Fund for Small and Medium‑sized Technology‑based Enterprises. We are committed to translating all technological innovations into real benefits for our customers, safeguarding cooperation with solid technology.
Thanks to excellent quality, superior craftsmanship, and attentive service, our market presence continues to expand. Our products sell well across all provinces and cities in China, with market share growing year by year. We maintain long‑term, in‑depth cooperation with international multinational corporations and well‑known domestic listed companies, while also exporting to Europe, the Middle East, Central Asia, Southeast Asia, South Asia, and other overseas markets, having withstood long‑term operation under diverse and demanding global conditions. Unlike the industry’s low‑price competition model, we adhere to a value‑driven approach, offering cost‑effective products with long service life, low failure rates, and reduced maintenance costs, thus creating long‑term value for our customers. While our initial procurement cost may appear moderate, we significantly reduce equipment downtime and post‑installation maintenance expenses, resulting in a clear total cost‑of‑ownership advantage.
Due to the complexity of core processes and high technical barriers, only a handful of domestic companies can stably produce high‑quality vacuum interrupters at the same level. Our core processes demand extremely high standards in production environment, equipment precision, and operator experience. Some customized products have longer lead times, and our production capacity is kept at a reasonable and controllable level. Nevertheless, we always do our utmost to ensure stable supply and avoid any risk of supply shortages during peak seasons. Our products feature high‑precision machining, compact and rational structural design, excellent insulation performance of solid‑sealed poles, and easy installation—every detail reflects our craftsmanship.
Since our founding in 2007, we have weathered nineteen years of challenges and remain true to our original aspiration. From a startup team, we have grown step by step into an industry benchmark. We consistently uphold the business philosophy of “focus, dedication, and professionalism,” striving to become experts in vacuum interrupter production. We practice the core values of “harmony builds strength, integrity wins markets, and responsibility shapes the future,” and embrace the corporate spirit of “people‑oriented and continuous improvement,” pursuing win‑win development for customers, employees, and the company.
Looking ahead, Hubei Dayu Hanguang Vacuum Electric Co., Ltd. will continue to be guided by technological innovation, underpinned by excellent quality, and connected by honest service. We will keep refining our high‑quality products and integrated solutions, deepen our commitment to the vacuum electric appliance business, and actively support power infrastructure development both at home and abroad, with the goal of becoming a trusted long‑term partner for global customers.
