• The Power To Transform™

    In over 40 countries around the world

Welcome to RoMan

RoMan is an industry-leading manufacturer of AC water-cooled transformers and DC Power Supplies and related specialty products used in resistance welding; melting, boosting, refining and forming of glass; and vacuum and atmospheric furnace applications.

As a manufacturer of high-current, low-voltage power sources, we use the finest materials available to offer thousands of design and customized options built to the highest quality standards and to your specific industry and application requirements.

We also provide you value-added, application-centric technical support and industry specific application engineering services.

Our products and services have made us the choice of hundreds of companies throughout the world.

Company Knowledge
MFDC Lightweight 2

Additional Resources

View Articles, Blog Posts, Case Studies, and Whitepapers

Blog Post

Don DeCorte, RoMan’s Vice President—Resistance Welding Products, explains the strengths and weaknesses of using AC, MFDC and CD welding processes for projection welding of nuts and studs.