Plastic and metal parts contract manufacturer will gain greater capacity, efficiency

MENOMONEE FALLS, Wis.—Dielectric Manufacturing is developing a new plant and headquarters that will significantly expand capacity and enhance the company’s production efficiency for plastic and metal parts, the company announced recently.  The new building will include space for offices, production, quality control, and warehousing.

The new 100,000-square-foot facility in Germantown, Wisconsin, will replace Dielectric’s existing metropolitan Milwaukee location in nearby Menomonee Falls, Wisconsin. The company expects construction to be completed in spring of 2020.

“Our business has grown significantly over the last several years, putting us close to capacity at our current location,” said Mike Esser, president and CEO of Dielectric Manufacturing, in a statement. “A new facility will not only let us continue to meet the expanding needs of our customers for years to come, but also will give us the opportunity to create a highly-efficient production flow.”

Dielectric Manufacturing (, formerly known as Dielectric Corp., machines and fabricates metal and plastic components and assemblies for a wide variety of companies, including Fortune 500 businesses. The company serves a spectrum of industries that include health care equipment, aerospace, defense industry vehicles and vessels, food processing, power distribution, and agriculture.

An Esser family corporation acquired approximately 28 acres for the new building. The corporation will retain just over 13 acres for the Dielectric Manufacturing operations. The remaining acreage is being offered for sale to support other development.

“The closeness of this property to a U.S. Highway 41/45 interchange was a key factor in making the purchase,” Esser said. “Our current facility is similarly close to the highway, and we wanted to retain that accessibility.”

The current Dielectric facility will be offered for lease or sale after it is vacated next summer.

Dielectric’s facilities in Waupaca, Wisconsin (which operates as Centerline Machine), and in Lake Mills, Iowa, will remain operational.

The late Ray Esser founded the company as Dielectric Corp. in 1966. The company moved several times to accommodate increased business and to expand its capabilities as a contract manufacturer for thermoplastic, thermoset, and non-ferrous metal components. The company’s acquisition of Centerline Machine in 2015 gave Dielectric full capabilities to machine ferrous metals.

The company recently rebranded as Dielectric Manufacturing and launched a new website to project its full capabilities as a single-source contract manufacturer. With more than 50 years of experience, Dielectric Manufacturing also provides prototyping, component assembly, packaging, and inventory management. The company is based in metropolitan Milwaukee and holds ISO 9001:2015 certification.

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