Proud To Be Wisconsin's Leading Provider of Plastic Injection Molding

High-Quality Plastic Gears - Midwest Precision Molding

On January 1, 2021, Plasti-Coil Tri-Tec Corporation changed its name to Midwest Precision Molding

MPM Has Offered Custom Molded Plastic Parts For the Last 40 Years

We Offer the Highest Quality Plastics at the Lowest Possible Prices

Our Onsite Tool Room is Ready to Create Your Plastic Injection Mold

True Custom Molder Focused on Tight Tolerance and Precision Plastic Parts.

MPM is Home to Over 40 machines, including Seven New Sodick Presses

Plastic Injection Molding for Wisconsin

For over 40 years, Midwest Precision Molding (MPM) has served as Wisconsin's leading provider of plastic injection molding. If you can dream it, we can create it. Our Lake Geneva facility is home to some of the most dynamic equipment arrangements in the Midwest; including over 40 injection modeling machines, 11 new Sodick presses, and new automation equipment.

When it comes to custom injection molds, we're your people. At MPM, we specialize in creating top-of-the-line gear, insert, and bobbin molding. We are Wisconsin's only true custom molder focused on tight tolerance and precision plastic parts. From initial design to post-production, our team is here to guide you every step of the way. There is no project too small or too big. Our onsite tool room is ready to create your plastic injection mold on time and propel your business or project forward.

Message us today to receive your personalized quote!

What's New with MPM Plastics?

Midwest Precision Molding Supports Williams Bay High School

Local Outreach

Midwest Precision Molding Supports Technology Resources at Williams Bay High School Midwest Precision Molding is honored to support the advancement in technology resources for manufacturing practices at Williams Bay High School. This will allow for kids to learn, grow, and develop skills to prepare them for a stable career while earning certifications, credits, and technical

Proud Member of AGMA

Midwest Precision Molding is now a proud member of AGMA! AGMA, or the American Gear Manufacturers Association, is the global network for technical standards, education, and business information for manufacturers, suppliers, and users of mechanical power transmission components. MPM is now proudly listed alongside is a growing list of companies, consultants, and academicians with a

MPM Welcomes Big Foot Recreation District

Midwest Precision Molding was proud to recently welcome members of the Big Foot Recreation District for a factory tour. Members got to view the facility and learn about our processes from start to finish. We enjoyed showing them, “How it’s made!”

MPM Plastics Honored As a Future Top 50 Company

MPM Plastics Honored As a Future Top 50 Company Midwest Precision Molding (MPM Plastics) is proud to announce its recent designation as a 2022 Future 50 company by BizTimes Media in partnership with the Metropolitan Milwaukee Association of Commerce. The Future 50 program, now in its 33rd year, recognizes privately-owned companies in the Milwaukee region that

Coil Winding Bobbins

Since MPM's beginning, coil winding bobbins have been at the core of our business. Partnering with hundreds of manufacturers over the years has elevated us to “Experts” in the realm of custom bobbins. Read More....

Terminal Pin Insertion

At MPM, not only do we produce millions of plastic injection molded bobbins annually, but provide many secondary operations such as terminal and pin insertion. We operate many specialized machines that makes this process possible. Read More...

Insert Overmolding

Plastic insert molding is a custom molding process where plastic is injected into the mold to encapsulate (either fully or partially) a part that was placed into the mold just prior to the injection of plastic. Read More...

Molded Plastics

At MPM, “custom” is an everyday term in what we achieve for our customers. When it comes to custom plastic molders, we are simply the best!

MPM is a Proud Member of AGMA

Midwest Precision Molding is now a proud member of the American Gear Manufacturers Association. The global network for technical standards, education, and business information for manufacturers, suppliers, and user of mechanical power transmission components.