Separating Metro from other plastic injection molders is the complexity of knowledge and experience on staff.
Our Engineering Team’s standard of operation puts our client and their project first by utilizing our extensive capabilities and resources.
Our Engineers solve problems. Analyzing and determining how things work and applying these conclusions to molding plastic parts is what we do. Custom plastic injection molding means that each and every job is different and no two molds are exactly the same. It is amazing when you think about all the different considerations in building a mold. Our “Tooling Standard” names over 30 considerations for just how a part will be ejected from the mold. It covers everything from minimum ejector-pin diameter to slide interface surface differentials.


  • 25+ presses ranging in size
    from 15-720 tons
  • Prototyping
  • Insert molding
  • Custom packaging
  • Custom automation
  • Welding
  • Inventory management
  • Logistics services


  • Our team’s knowledge of material application takes your project to new heights! We provide you with the necessary specifications to allow you to make the most informed decision for your project.
  • Don’t worry about obtaining the material yourself. We have that covered from years of relational strategy!
  • If you have questions about raw material, additives, or applications as it relates to your project, we can find you answers


  • In-Mold Labeling
  • PolyFuze™
  • Hot Stamping
  • Logo Inserts
  • Engraving

Engineering for plastic injection molding

In addition, Metro’s Engineering Team constantly works to implement improvements. Increased efficiency, cost-reduction and better customer experiences are the result of their due diligence. 2021 put us to the test with the raw material crisis. Read more here about how Metro’s relationships and resilience kept us afloat during the perfect storm.

It’s not just about how much draft a part has or where to gate the part and what resin will work best…it’s also about listening to customer feedback, really putting in the research to formulate solutions that work for our business and yours.

Your plastic injection project, whether it requires a proto-type tool or a complex, multi-cavity tool, will receive the same scope of consideration and resources.

We will guide you in making the best choices from material to packaging; after all, your success is our success.