High-efficiency oil-immersed power transformers designed for outdoor and general industrial applications. Featuring 30% lower no-load loss than traditional S9 series, IP65 protection grade, and 30+ years service life. Available in 10kVA to 16000kVA capacity range with multiple voltage configurations.
Backed by professional R&D capabilities, comprehensive service chain and rigorous quality assurance system. Our oil-immersed transformers are trusted by customers in over 30 countries.
32-member professional R&D team with 5 utility patents and 8 software copyrights. 15% of annual revenue invested in R&D. Core products have obtained provincial-level technical appraisal.
End-to-end services covering customized product design, manufacturing, on-site installation, commissioning, technical training and after-sales maintenance. 3-year free warranty and lifetime maintenance policy.
Provincial-level certified testing center with 12 quality checkpoints. 100% full inspection for every unit before delivery, conducting 24+ performance tests with all test records stored for 10 years.
Serving over 30 countries across Europe, Asia, Africa and Oceania. ISO9001, ISO14001, ISO45001, CE certified with 98.7% on-time delivery rate and strategic logistics partnerships worldwide.
Our 28,000 sqm modern production base in Xinzheng, Zhengzhou is equipped with 3 automated production lines and staffed by 120+ skilled workers, with an annual production capacity of 12,000 sets of various transformers. Every unit undergoes rigorous quality testing before delivery.
Raw Material Inspection
Production Monitoring
Final Performance Testing
Find answers to common inquiries about our oil-immersed transformer products, quality assurance, shipping and after-sales service.
We manufacture a complete range of oil-immersed transformers including S11, S13, S20, and S22 series with capacities from 10kVA to 16000kVA. All products comply with IEC 60076 international standards and are available in various voltage configurations (10kV, 20kV, 35kV) to meet different regional grid requirements.
Our S11 series offers 30% lower no-load loss compared to traditional S9 series. S13 series achieves 28% lower loss than S11, while S20 and S22 series meet Level 1 national energy efficiency standards. All products are designed to minimize total cost of ownership over the equipment's 30+ year service life.
Standard production cycle is 15-25 working days for regular transformer models. Custom explosion-proof or high-efficiency models require 30-40 working days depending on specifications. We have long-term strategic cooperation with Maersk, COSCO and other international logistics providers, supporting FOB, CIF, DDP and other trade terms with a 98.7% on-time delivery rate.
We provide comprehensive after-sales service including 3-year free warranty, lifetime maintenance, free installation and commissioning guidance, and long-term technical support. Our professional engineers can provide on-site installation guidance and technical training for local operation staff. We also offer remote technical consultation and troubleshooting support.
Yes, customization is one of our core strengths. Our 32-member R&D team can design transformers to meet specific voltage, capacity, impedance, and connection requirements. We have delivered customized solutions for mining, new energy, traction power supply, and special industrial applications. Share your specifications and we'll provide a tailored design proposal.
All our oil-immersed transformers hold ISO9001, ISO14001, and ISO45001 certifications. Products have obtained EU CE export certification. Mining transformers have China MA Mine Safety Certification. We also have SGS Product Test Reports and National High-Tech Enterprise and AAA Credit Rating certifications.
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