Norlake Manufacturing Company is a designer and manufacturer of a wide variety of custom-made magnetics. Whether you need Power Transformers, Isolation Transformers, Current Transformers, Filter Reactors, Buck Boost, Ferroresonant, Water-cooled, MIL-T-27 or K-Factor you have come the right place. At Norlake you can find everything from Autotransformers to Zig-Zag.

Our Past & Future

In 1963 Mr. Bruce Diehl established Norlake Manufacturing Co. in Norwalk, Ohio as a magnetics supplier to the telecom industry. The company moved several times in the 1960's from Norwalk, to Avon Lake, to Lorain, Ohio settling in Elyria, Ohio in 1970. Mr. Diehl’s partner, Howard Roe, then bought Norlake Manufacturing. Mr. Roe recruited James Markus from a competing magnetics manufacturer in 1968. Mr. Markus was named the president of Norlake and eventually took over ownership. Norlake expanded to three buildings totaling 27,000 square feet in Elyria, Ohio. Norlake continued to experience substantial growth and moved into a new 51,000 square foot, state-of-the-art facility, in North Ridgeville, Ohio. Norlake became ISO certified in August, 2000 and ISO 9001:2000 certified in January, 2004. Today, James Markus continues his commitment to Norlake’s success as president and majority owner.

Norlake welcomes change and challenges. Over the years Norlake has partnered with customers and grown from 4 employees producing 10VA sized magnetics with annual sales of $100,000 to 95 employees producing over 3500KVA sized magnetics and $14,000,000 in annual sales. This growth comes from strong leadership, skilled engineers, a dedicated work force, high quality and affordable products.

In 2000 Norlake accepted customer requests to expand product offerings and added design and production capacity for medium voltage units. A significant capital improvement effort changed the production space and added a larger crane, varnish tank and larger walk in oven.

Norlake responded to growing customer needs for custom products shipped within 24-hours and in 2006 leased the adjacent building eventually purchasing it in 2008 to support various build-to-stock programs.

In 2008 to better support Norlake's customer's need for lower cost products at shorter lead-times, Norlake acquired a local metal fabricator. Norlake still maintains an in-house machine shop for prototypes, small run and expedited orders.