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For over 20 years, LongFor Energy has been a leading R&D-based high-tech group designing, manufacturing, and exporting vacuum oil filtration machines, transformer oil purifiers, lube treatment systems, and electrical testing equipment for global industrial applications.
A trusted name in oil purification and transformer maintenance technology with over two decades of innovation and OEM manufacturing excellence.
For more than 20 years, LongFor Energy has served as the original factory behind numerous oil purifier brands exported globally by Chinese suppliers. As a leading R&D-based high-tech group, we specialize in designing, developing, manufacturing, and exporting a comprehensive range of vacuum oil and fluid filtration machines, oil treatment systems, oil regeneration units, transformer evacuation systems, dry air generators, electrical testing equipment, and oil testing kits.
Since 2020, LongFor Energy has transitioned from exclusive OEM manufacturing to direct global exports under our own brand. Our mission is to deliver high-efficiency, reliable, and innovative solutions to power utilities, industrial plants, and maintenance service providers worldwide.
High-performance oil purification, filtration, and transformer maintenance systems engineered for reliability and efficiency.
High-efficiency dual-stage vacuum system for deep dehydration and degassing of transformer oil.
Advanced purification for insulating oils with automatic control and high flow rate.
Complete vacuum system for transformer drying and moisture removal.
Compact and mobile unit for on-site oil filtration and maintenance.
Precision dielectric strength tester with digital readout and safety features.
Full-cycle regeneration system to restore used oil to near-new condition.
Designed for steam and gas turbines, removing water, gases, and particulates.
Provides moisture-free air for transformer preservation and maintenance.
Maintains lubricant quality in industrial machinery and hydraulic systems.
Specialized system for electro-hydraulic control fluid reconditioning.
Removes contaminants and water from diesel fuel for optimal engine performance.
High-capacity filtration for large volume industrial oil processing.
Our commitment to innovation, quality, and customer support sets us apart in the industrial oil treatment industry.
Backed by two decades of OEM manufacturing and R&D innovation in oil purification technology.
Comprehensive solutions from oil purifiers to testing kits and spare parts for all maintenance needs.
Direct export capability with multilingual support and international compliance standards.
Our machines are designed for transformer insulating oil, turbine oil, lubricating oil, EH hydraulic fluid, diesel fuel, and other industrial oils.
Yes, we provide OEM/ODM services and can customize machines based on specific flow rates, voltage, and operational requirements.
Standard models are typically shipped within 15-20 working days after order confirmation.
Yes, we offer comprehensive technical documentation, remote support, and on-site training upon request.
Yes, we supply all critical spare parts including filter cartridges, heaters, pumps, and control components.
For product inquiries, technical support, or partnership opportunities, contact us directly.
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