About Harbor Plastics

Harbor Plastics, is woman owned company that produces custom plastic injection molding components. We are located in Maple Plain, Minnesota just 15 miles West of Minneapolis.

Our success and plans for growth are based on the recognition that our investment in new manufactur...

Read more

Our Portfolios

  • Plastic Injection Molding of Nylon Mobile Localizer Base & Cover for the Medical Industry

    As a versatile custom injection molding company, at Harbor Plastics, we offer injection molding of a myriad of component types and sizes. This mobile localizer base and cover set was manufactured for a customer in the medical...

    Read More
  • Plastic Injection Molding of Pocket Sprayer Tubes for the Promotional & Retail Industry


    As a leading injection molding provider, at Harbor Plastics, we are capable of providing quality high volume injection molding services at economical prices. Our combination of domestic and offshore...

    Read More
  • Insert Molding of ABS Remote Enclosure for the Retail Industry

    When a customer in the retail industry required custom insert molding capabilities to produce a component of their cart return system, they relied on the service and expertise of our engineers at Harbor Plastics. This red and...

    Read More
  • Plastic Injection Molding of Nylon Air Filter Cover for Motorcycle Engines

    At Harbor Plastics, we can produce precision insert molded components for any custom application. This air filter cover is made of black glass filled nylon and is used on high end motorcycle engines. Threaded brass inserts ar...

    Read More
  • Over Molding of PBT Gear for Diesel Engines

    At Harbor Plastics we provide quality, economical, molding solutions like this custom component over molding project for a customer in the diesel engine industry. The over molding process opens up design possibilities by...

    Read More
  • Electronics and Fuse Housing

    Automotive parts have a lot of special requirements.  At Harbor Plastics we will get you from the initial part and mold design, PPAP process, part production and continual quality documentation.

    Read More