Injection Molding

If you're seeking a World Class Injection Molding Partner, Sturgis Molded Products is your solution. SMP has built a "Best-in-Class" reputation through the combination of our centuries of in-house molding expertise with leading edge equipment, the latest scientific molding technology, and our dogged application of Lean-Six Sigma-TPM tools & techniques that drive our continuous improvement engine. SMP’s culture is wholly focused on maximizing value to our customers as evidenced by the Quality of our products and tooling, reliable on-time Delivery, competitive Lead times, speed time-to-Market, and Efficient operations. SMP offers a wide range of press tonnages (50US ton – 1760US ton), a full spectrum of materials, insert molding capability, light assembly, and full service tooling design & build. SMP is both ISO 9001:2008 and ISO/TS 16949:2009 certified.


Scientific Molding allows SMP to deliver defect free product thru in-process molding verification and process control. SMP is committed to investing in the latest training, equipment & technology necessary to support our world-class molding philosophy and continues to provide the highest quality products to our quality driven customers.

Implementation to Realization

SMP provides services ranging from conceptual design to full production including assembly. Every production part is put through our rigorous NPI (new product introduction)/APQP process to ensure perfect quality at launch. Each customer is assigned to one of our highly trained project managers that provide full program management including timelines, tooling reviews, PPAP documentation and full dimensional reviews. Whatever level of service is desired, SMP is prepared to be your provider.

What’s New?

Sturgis Molded Products attends Xenith’s Media Day in Detroit, MI announcing the Michigan based manufacturing of their Football Helmet Shells at their facility in Sturgis, MI.
Press Release
Three Xenith Adult helmet models ranked in the top six in the NFL and NFL Players Association’s 2017 Helmet Laboratory Testing Performance Results; Sturgis Molded Products is the manufacturer of Xenith’s Adult Football Helmet Shells.
News Article
SMP CEO Mark Weishaar speaks at the 2013 Mackinac Policy Conference - Bringing Manufacturing back to the U.S.
Sturgis Molded Products has manufactured a thermoplastic composite to replace the cast aluminum in the transaxle inspection cover assembly on vehicles built by Mack Trucks Inc. The new cover’s tough aromatic polyamide eliminates the corrosion, lengthens service intervals and reduces part weight and cost.
Link to Full Article
Sturgis Molded Products (SMP) completed a 22,500 sq ft expansion to their high tonnage manufacturing plant and warehouse. SMP’s footprint now exceeds 182,500 sq ft