ISO 9001 : 2015 Certified  |  CE Certified  |  SGS Audited Special Transformer Production Base in China

About Us

Aerial panoramic view of Suzhou Boyuan Special Transformer factory

Suzhou Boyuan Special Transformer Co., Ltd.

Suzhou Boyuan Special Transformer Co., Ltd. is a high-tech joint-stock enterprise integrating scientific research, development and manufacturing. The company is located in the industrial zone of Fenghuang Town, Zhangjiagang — an emerging modern port city in Jiangsu Province, China.

The company covers a site area of 12,800 m², including 9,800 m² of modern standard production workshops, with fixed-asset investment of RMB 25 million. Engineering and technical personnel account for 35% of the total workforce (100+ engineers), and the annual comprehensive production capacity is approximately 5,000,000 kVA.

We are a member unit of the China Electrical Equipment Industry Association and an AAA-level credit enterprise. Product processing is strictly managed in accordance with the ISO 9001:2015 quality system standard, verified by an SGS on-site audit and EU CE certification — ensuring that product quality always satisfies customer requirements. Suzhou Boyuan is one of the special transformer production bases in China.

Production Strength

Standardized production processes, complete inspection equipment and advanced production lines guarantee reliable quality on every unit.

Production workshop of Boyuan transformer factory

Production Workshop

Standard modern production buildings equipped with a full set of manufacturing facilities.

Company technical meeting

Technical Team

100+ engineering and technical personnel driving continuous product improvement.

Transformer production and testing laboratory

Advanced Testing

Precision test instruments ensure 100% of products meet customer requirements before delivery.

Transformer coil winding process

Winding Process

Precision winding workmanship for stable electrical performance and long service life.

  • Automatic silicon steel sheet cutting line — precise core laminations with low loss and low noise
  • Variable-pressure vacuum drying system — thorough moisture removal for dependable insulation
  • Class H insulation vacuum pressure impregnation (VPI) equipment — superior dielectric and thermal performance

Quality Certificates

Quality philosophy: "Boyuan Transformers, Striving for Perfection." Brand culture: "Create the Boyuan Brand, Develop National Industry."

ISO 9001:2015 quality management system certificate

ISO 9001:2015

Quality management system certification covering the whole product processing procedure.

EU CE certificate of Boyuan transformers (1)

EU CE Certificate

Compliance with EU health, safety and environmental protection directives.

EU CE certificate of Boyuan transformers (2)

CE Certificate (Product Range)

CE approval extended across our main transformer product families.

Our Products at a Glance

Power transformer project case

Power Transformer Projects

Energy-saving power transformers in service at substations and industrial plants.

Rectifier transformer project case

Rectifier Transformer Projects

Rectifier units for electrolysis, electrochemistry and DC drive applications.

Electric furnace transformer project case

Furnace Transformer Projects

Furnace transformers powering arc furnaces and submerged arc furnaces.

We Welcome Customers from Home and Abroad

With reliable quality, honest cooperation and a win-win philosophy, we sincerely look forward to your visit and cooperation.

Get in Touch