Decoding Transformers: Johnson Electric’s Manufacturing Process

What makes Johnson Electric a leader in transformer manufacturing? We understand the critical role these components play across various industries, from powering manufacturing facilities to enabling infrastructure development. By seamlessly blending innovation with precision engineering, we not only meet but exceed expectations with our transformers. Through pushing the boundaries of design and manufacturing, we deliver transformative solutions tailored to the diverse needs of various industries and applications.

Design and Engineering:

With Johnson Electric’s dedication to transformer manufacturing, we transcend the ordinary by delivering tailored solutions across a diverse range of products. Leveraging our engineering expertise and state-of-the-art Optimized Program Services ©, we provide transformers ranging from three-phase to 750kVA and single-phase to 75kVA, covering frequencies of 50/60Hz and 400Hz, with various magnetic component options like inductors. Our streamlined processes ensure prompt responses to inquiries and prototype requests, aided by SOLIDWORKS 3D modeling, with comprehensive support provided by our experienced engineers via phone, email, video conference, or text. As a leading transformer manufacturer, precision and efficiency are at the core of our custom designs, meticulously engineered to optimize performance and reliability.


At Johnson Electric, our experts employ advanced techniques to create cores with minimal magnetic losses and wind coils with precise insulation. Our enclosures, crafted from high-grade steel, ensure durability and superior insulation, delivering reliable and efficient performance across various applications.


Each transformer undergoes rigorous pretests to verify its electrical, mechanical, and thermal performance. Our quality control measures are stringent, ensuring that every transformer meets our high standards of quality and reliability. Non-conforming parts are promptly identified and addressed to maintain the integrity of our products.

Quality Assurance (QA):

Johnson Electric operates to the exacting production standards of our Quality Management System. We begin with stringent Training Standards and use continuous improvement methodologies such as kaizen events, the A-3 process, and PDCA to ensure our quality engineering translates to quality, productive, and consistent manufacturing. We take our responsibility to provide high-quality products very seriously.

Excellent Service:

In addition to delivering quality products, Johnson Electric strives to give our customers a “Worry-Free Experience.” We monitor your orders closely so you don’t have to, and we are ready to assist in any way we can. Our team expedites urgent requirements and assists in finding the best freight carriers at the best price. We also provide proactive updates on your order to ensure transparency and peace of mind.

Certification and Traceability:

We adhere to ISO 9001:2015 standards, ensuring meticulous attention to detail in transformer manufacturing. We integrate lean manufacturing and 5S methodologies for efficiency. Our transformers meet UL, CSA, and CE requirements, and comply with RoHS, REACH, China RoHS, Conflict Minerals, EU BPR, EU POP, Low Halogen, and California Proposition 65 regulations for safety and environmental responsibility.

Precision and Expertise:

At Johnson Electric, we take pride in our precision and expertise as transformer manufacturers. Our dedication to our customers and quality assurance ensures that we deliver transformers of the highest caliber, meeting the diverse needs of our customers while upholding the highest standards of safety, performance, and sustainability.

Advancing Transformer Manufacturing: Johnson Electric’s Commitment

Johnson Electric’s leadership in transformer manufacturing stems from our profound appreciation of their indispensable role in diverse industries. We excel by seamlessly blending innovation with precision engineering, consistently surpassing expectations. Our comprehensive design and engineering processes, alongside exacting fabrication techniques, ensure unmatched reliability and performance. Committed to quality, we adhere to rigorous testing standards. With a focus on precision and expertise, Johnson Electric remains the premier choice for transformative power solutions. Contact us today to see how we can help you.