Engineering reliability for global power circuits
Guizhou Yunrui Electronic Technology Co., Ltd. was established to address a persistent challenge in power electronics: providing hardware engineers with capacitors that maintain their rated capacitance, withstand high ripple currents, and resist dry-out over years of continuous operation.
Our manufacturing operations integrate automated winding, electrolyte impregnation, and aging lines for Conductive Polymer Aluminum Solid Capacitors and Aluminum Electrolytic Capacitors. By synthesizing proprietary electrolyte formulations in-house, we control quality directly at the chemical level, delivering reliable components for servers, industrial drives, renewable inverters, and automotive systems worldwide.
Facility specifications & testing protocols
Solid & Electrolytic Capacitors
Conductive polymer & high-ripple aluminum formulations
ISO 9001 & ISO 14001
Automated end-of-line parameter sorting
Proprietary electrolyte chemistry
Stable ESR behaviour across the operating temperature range
Direct engineering accountability
Traceable lot codes with full parameter test sheets on every production batch.
Production & Facilities
Guizhou Yunrui operates a fully integrated in-house manufacturing infrastructure established in 2018. From proprietary chemical synthesis to automated assembly and end-of-line verification, every stage is maintained under unified quality systems.
Dedicated high-reliability capacitor manufacturing
Integrated manufacturing footprint in Zhenyuan, Guizhou
Winding, impregnation, assembly and test lines
Aluminum electrolytic and conductive polymer families
Registered intellectual property rights
Pieces per day, approximate
In-house conductive polymer formulation and functional electrolyte synthesis, ensuring precision chemistry control directly upstream of assembly.
- In-house synthesis control
- Pure chemical formulation
- Direct feed to automated winding
High-speed automated winding rows engineered for tight layer alignment, stable dielectric properties, and uniform foil tension across high-volume batches.
- High-speed automated lines
- Uniform winding tension control
- Strict mechanical tolerances
Finished capacitors pass through automated electrical parameter testing before packing, so out-of-spec components are pulled from the lot.
- Automated end-of-line screening
- Automated ESR & capacitance test
- Leakage current inspection
Production facilities and operating workflows maintain certified compliance with established international quality and environmental management standards.
Self-developed electrolyte technology
The electrolyte determines how a capacitor behaves after thousands of hours under ripple current. Yunrui develops its electrolyte technology in-house, so conductivity, stability and long-term performance are controlled at the formulation stage rather than inherited from an outside supplier.
That chemistry know-how is combined with aluminium electrolytic and conductive polymer aluminum solid capacitor manufacturing, and with automated end-of-line parameter testing that verifies capacitance, ESR and leakage current before components are packed.
In-house electrolyte formulation
Electrolyte chemistry is developed and synthesised in-house instead of being bought as a finished formula, which keeps performance consistent from batch to batch.
Materials & component engineering
Foil, separator and sealing materials are specified against the electrical duty of each capacitor family, from conductive polymer aluminum solid capacitors to aluminum electrolytic capacitors.
Electrical performance verification
Capacitance, ESR and leakage current are measured on automated end-of-line test equipment, and lot data is retained for traceability.
Traceable production lots
Component lots carry traceable lot codes so test data can be matched back to the production batch.
Certified quality management across every line.
Review our ISO 9001 and ISO 14001 certified management systems. All official certification files and compliance documentation are maintained and available upon request.
International system certifications
Quality management system standard
Certification documentation available upon request.
Environmental management system standard
Certification documentation available upon request.
Certificate artwork shown above is reproduced from the documents issued to Guizhou Yunrui Electronic Technology Co., Ltd. Use the links above to download the original PDF files, or contact us for procurement review copies.
Require certification documentation for procurement review?
Official ISO certification documentation is available upon request for procurement evaluation.
Intellectual property
Intellectual Property & Innovation
Yunrui holds 25 intellectual property rights covering capacitor construction, electrolyte formulation and manufacturing tooling. The certificates below were issued by the National Intellectual Property Administration of the People's Republic of China to Guizhou Yunrui Electronic Technology Co., Ltd. and are reproduced from the client's own files.
25
IP rights held
11 certificates shown below
Invention patent
ZL202110227304.1
Invention patent
ZL202210484238.0
Invention patent
ZL201710403021.1
Utility model
ZL202022398357.3
Utility model
ZL202022374416.3
Utility model
ZL202023006088.8
Utility model
ZL202023006017.8
Utility model
ZL202023006097.7
Utility model
ZL202023009601.9
Utility model
ZL20202404420.X
Utility model
ZL202022374391.7
Certificate artwork is reproduced from documents issued to Guizhou Yunrui Electronic Technology Co., Ltd. Full-resolution copies are available on request for procurement review.
From Guizhou to global markets
Capacitor manufacturing in Zhenyuan County, Guizhou, supplying electronics manufacturers, industrial equipment builders and power supply makers in six confirmed overseas markets.
Key markets served
Key markets served include Vietnam, India, Turkey, Egypt, Brazil, and Dubai / UAE.
Building 1, Phase III Plot 2, Return Home Entrepreneurship Park, Qiandong Economic Development Zone, Zhenyuan County, Qiandongnan Miao and Dong Autonomous Prefecture, Guizhou Province, China
International inquiries & samples
Connect with our team for component datasheets and sample evaluations.
Simplified illustrative map. Country outlines are indicative only.