Precision manufacturing · Reliable quality · Focused on demanding applications
Hang Zhou Ou Neng Electric Co., Ltd. (Ou Neng Electric) is a Chinese manufacturer of industrial power capacitors, founded in 2002 and based in Hangzhou, Zhejiang. The company designs and produces pulse capacitors, high-voltage capacitors, induction heating capacitors, DC capacitors, and special-application capacitors to GB/T and IEC standards — integrating R&D, design, production, sales, and service under one roof. Our facility spans 86,000 ft² with an 80,000 ft² production floor.
We manufacture a broad range of capacitor products and related electrical equipment for domestic and international markets. Our strength lies in precision manufacturing, deep customization capability, and a rigorous commitment to quality at every stage of production.
Across our mainstream product lines, Hang Zhou Ou Neng Electric Co., Ltd. holds approximately 40% market share in China — a position built on consistent quality, technical reliability, and long-standing customer relationships.
With an annual output exceeding 100,000 capacitors, our high-purity production workshop is built around automation at every stage. Fully automatic winding machines ensure consistent film layering with zero manual variation. Robotic welding equipment eliminates human error in terminal connections. A fully automated vacuum impregnation system guarantees uniform dielectric saturation across every unit. A dedicated degreasing and purification treatment system maintains strict cleanliness standards throughout.
This level of automation is not just about throughput — it is what drives the consistency and long-term reliability our customers depend on. Every unit that leaves our facility has been processed through the same controlled, repeatable sequence, backed by rigorous in-process quality inspections and industry-leading thermal type testing equipment.
All manufacturing follows ISO 9001:2015 (quality management), ISO 14001:2015 (environmental management), and ISO 45001:2018 (occupational health & safety), with inspection checkpoints at incoming materials, in-process production, and final testing.
We hold 19 granted patents — 2 invention patents and 17 utility model patents — covering capacitor design, manufacturing processes, and production equipment, reflecting our ongoing investment in proprietary technology and continuous innovation.
We export to Europe, North America, and Asia — including Germany, India, the United States, and Southeast Asia. Our products are trusted by industrial operators who demand precision and reliability at scale.
Delivering over 100,000 specialized units to international clients each year, we combine engineering depth with flexible production to meet the diverse requirements of different markets and industries.
Whether you need a standard product or a fully custom solution, our engineering team is ready to help.