ABOUT OUR COMPANY

Chongqing Yuneng Oil-Filter Manufacturing Co., Ltd. is a leading high-tech joint-stock enterprise dedicated to engineering-grade oil and gas purification systems. Established on the foundation of the former Yuneng Oil-Purifier Factory, we have grown into a globally recognized manufacturer and solution provider with a history spanning over 30 years.

Our Mission
We partner with utilities, EPC firms, manufacturers, and research institutions to protect critical electrical assets and optimize operational reliability. Our engineering solutions address key risks in transformer commissioning, electrical insulation systems, and gas-insulated equipment maintenance.

Engineering & Manufacturing Capabilities

• A modern facility covering approximately 14,500 m² with full engineering, production, and testing capabilities.
• Over 15,000 systems sold worldwide, demonstrating proven performance across power, petrochemical, rail, and industrial sectors.
• Global quality and safety standards certified (ISO9001, ISO14001, ISO45001, CE).
• Multiple national invention patents and proprietary technologies in oil and gas purification.

Core Product & Solution Portfolio

We specialize in engineered systems designed for reliability, long-term performance, and ease of operation:

• Transformer Oil Purification Systems — High-vacuum, double-stage dehydration and filtration for transformer commissioning and maintenance up to 500 kV.
• Vacuum Pumping Units — High-performance vacuum systems for transformer drying, evacuation, and commissioning applications.
• Dry Air Generators — Reliable dry air supply equipment that improves insulation protection while ensuring safe onsite operations.
• SF₆ Gas Recovery & Purification Equipment — Systems for SF₆ evacuation, purification, storage, and refill with emphasis on cost control and environmental safety.

Engineering Services & Support

Yuneng goes beyond equipment supply — we deliver turn-key solutions including:

• Customized system design based on project specifics.
• Pre-installation engineering support.
• Onsite commissioning and training.
• Lifetime maintenance support and spare parts availability.

Global Footprint & Project Experience

Our systems support a wide range of international projects — from utility installations to industrial maintenance programs. With products exported to more than 80 countries across Asia, Europe, Africa, and the Americas, Yuneng’s solutions are proven in diverse environments and electrical infrastructure applications.

Vision for the Future

Driven by a commitment to technological innovation, service excellence, and sustainable solutions, Yuneng strives to be a preferred global partner for engineering teams seeking reliable oil and gas treatment systems in high-voltage and industrial power environments