Principal Manufacturing Corporation has been delivering engineered solutions to automotive, industrial, and OEM customers since 1980. We’re a family-owned company with deep technical expertise, low employee turnover, and a strong track record of helping manufacturers meet challenging specifications with speed and accuracy.

Our team takes pride in being accessible, collaborative, and consistent. We’ve built long-term relationships by staying responsive and adaptable, traits that are often missing in today’s fragmented supply chains. From complex geometries to just-in-time delivery, our focus is always on what moves your production forward.

Fine Blanking, Custom Sheet Metal Stamping, & Overmolding In-House

At our 170,000 sq. ft. facility in Broadview, IL, we manage the entire lifecycle of your part or assembly.

We are certified to IATF 16949:2016 and ISO 14001:2015, reflecting our commitment to both quality and environmental responsibility. Our measurement lab includes advanced inspection technologies to verify performance at every stage.

We Offer

  • Fine blank stamping up to 700 tons
  • Quality metal stamping up to 700 tons
  • Plastic injection overmolding
  • In-house tooling design and build
  • Secondary operations like CNC machining, grinding, automated assembly, tapping, and more

This integrated approach allows us to streamline production, reduce lead times, and deliver ready-to-use parts that meet tight tolerances and demanding performance criteria.

With decades of hands-on experience and a proactive engineering team, Principal Manufacturing offers strategic support. Our engineers engage early to help identify cost-saving opportunities, resolve design complexities, and improve manufacturability before production begins.

Ready to work with a custom metal stamper that values efficiency and precision as much as you do?

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