About

Milwaukee-Area Contract Manufacturer of Precision Plastic and Metal Parts and Components, With Value-Added Services

Dielectric Manufacturing is your single source for plastics and non-ferrous metals contract manufacturing service. We are committed to delivering turnkey, world-class solutions for parts and components – including mission-critical parts.

We offer machining, fabrication and value-added services on a wide variety of materials, including thermosets, thermoplastics, carbon fiber composites, and non-ferrous metals at three locations across Wisconsin and Iowa.

Our Centerline Machine business in central Wisconsin excels at machining ferrous metal parts.

In addition to machining parts and making assemblies, we are a distributor of unfinished materials, including a wide variety of thermoset plastics and thermoplastics.

Contract Manufacturing Service Advantages

The advantages of plastic contract manufacturing service include:

• access to specialized expertise,
• reduced costs and reduced time-to-market,
• improved production efficiency, and
• scalability.

Contract manufacturing allows companies to focus on business strategy and their core competencies – leaving the plastic parts manufacturing to the experts, such as Dielectric Manufacturing.

Along with fabrication, we offer design collaboration, material selection guidance, prototyping, assembly, kitting and packaging, and inventory management.

Plastic Contract Manufacturing
in Wisconsin for More Than 55 Years

Founded by Ray Esser in 1966 under the name Dielectric Corporation, we have extensive experience in the fabrication and machining industry. In 2019 we modified our name to Dielectric Manufacturing to better reflect our breadth of plastic contract manufacturing and metal machining capabilities. We remain privately owned by the Esser family, and continue to grow.

Modern Milwaukee-Area Facility
Increases Capacity, Efficiency, Productivity

In 2020, we opened a newly built 100,000-square-foot headquarter facility in Richfield, WI, just northwest of Milwaukee. With this new facility, we are able to offer even greater production efficiencies and provide room for future expansion. Read more. Additional manufacturing plants are in Waupaca, Wis. (handling ferrous metals), and Lake Mills, Iowa.

Plastics and Metals Contract Manufacturer
for Diverse Industries – No Matter the Business Size

Dielectric Manufacturing customers rely on our community of employees to deliver unparalleled, value-added solutions in design collaboration, prototyping, component manufacturing, assembly, packaging, and inventory services for plastic parts and non-ferrous metal parts. Click here to see samples of our work.

A Standout Among Plastic Manufacturing Companies

The highly knowledgeable Dielectric Manufacturing team is known for being a reliable and attentive contract manufacturer to a wide variety of businesses, including Fortune 500 companies. Among the various plastic manufacturing companies, Dielectric Manufacturing stands out for its reliability and performance.

Custom precision components and assemblies that we manufacture are used in equipment for these leading industries:

• Aerospace
• Agriculture
• Defense
• Electrical
• Food Processing
• Gas & Oil
• Health Care – Medical Equipment
• Power Generation and Distribution
  • including Wind Power
• Power Sports

When you are considering plastic manufacturing companies for parts or components, contact Dielectric Manufacturing for a quote on a project, or to learn more about our full range of services. Call 800-367-9122, use our Quick Contact form, or our Request a Quote form for plastic parts.
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