Our Oil Immersed Transformers Supplier are engineered for high-efficiency power distribution and voltage regulation in industrial, commercial, and utility sectors. These robust transformers are widely deployed in factories, manufacturing plants, renewable energy facilities, and distribution networks, providing stable energy and reducing downtime.


For decades, Hairui has been dedicated to helping numerous well-known enterprises and institutions customize reliable equipment. With strong production capabilities and professional expertise, we ensure that our equipment is fully compliant and meets your requirements.








We provide single-phase and three-phase transformers ranging from 50kVA to 5000kVA, suitable for industrial, commercial, and utility applications.
Yes, we specialize in OEM and ODM solutions, allowing full customization of voltage, capacity, cooling method, and design to meet client-specific requirements.
Absolutely. We serve distributors, electrical contractors, and industrial buyers with bulk supply, competitive B2B pricing, and flexible shipping options.
Yes, all transformers meet IEC 60076 and GB/T 1094 certifications, guaranteeing safety, performance, and reliability.
Yes, our private labeling and white-label services allow distributors and resellers to market our high-quality transformers under their own brand, supporting OEM and ODM partnerships.
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