World Class Plastics, Inc. (WCPI) offers custom plastic injection molding services and is one of the leading injection molding solution companies in the United States. Our extensive range of product capabilities includes high-precision, multi-component, class-A surfaces, both small and large component parts. As a one-stop shop, we also provide numerous additional services, including engineering, product development, material selection, prototyping, mold making, tooling, warehousing, logistical support, and maintenance.


Injection Molding

WPCI delivers specialized injection molding services, including tight tolerance molding and expert color matching. Our state-of-the-art equipment not only ensures your visual and dimensional tolerances are met, but also allows us to create a product that adheres to critical details and intricate shapes.

Tight Tolerance

As plastic injection molding technology and innovation continue to advance, part tolerances are becoming increasingly tighter. Typically, a tight tolerance is defined as +/-.002 inches, and a very tight tolerance is +/-.001 inches. Many factors influence tight tolerances, including part size and complexity, raw material selection, as well as tooling and process conditions. Due to this fact, choosing the right design is crucial for products that require tight tolerances. At WCPI, our knowledgeable team will ensure your component features the design and materials required to meet your application demands.

Color Match

WCPI runs a large catalog of custom colors to meet various required L,a,b specifications. Selecting the right color is a crucial aspect of the injection molding process. Several factors go into color selection, such as whether the component needs to be a certain color for safety reasons as well as branding and aesthetic considerations. The right color is critical to either differentiate your product from your competitor, or to match to a product or model color code



At WCPI, our injection molding expertise enables us to use filled materials, such as talc, mica, calcium carbonate, glass bead and glass fiber, to name a few. We are capable of molding parts with clamping forces ranging from 50 to 750 metric tons, using materials that include:

  • Acrylic
  • Acetal
  • Acrylonitrile Butadiene Styrene (ABS)
  • Copolymer Polypropylene
  • Glass Filled Plastic
  • High Density Polyethylene (HDPE)
  • Low Density Polyethylene (LDPE)
  • Polyethylene Terephthalate Glycol (PETG)
  • Nylon, Filled and Unfilled
  • Polycarbonate
  • Polyester
  • Polyethylene Terephthalate (PET)
  • Polyethylene (PE)
  • Polyphenylene Sulfide (PPS) (Ryton┬«)
  • Polypropylene (PP)
  • Polystyrene
  • Polyurethane
  • Polyvinyl Chloride (PVC)
  • Thermoplastic
  • Thermoplastic Elastomer (TPE)
  • Thermoplastic Polyurethane (TPU)
  • Thermoplastic Vulcanizate (TPV) Santoprene┬«



WPCI features a 85,000 sq. ft. facility that is well-equipped with material handling systems, multi-axis servo robots, water temperature controllers, blenders, granulators, dryers, chillers, and backup compressors. We support orders ranging from prototype to high or low-volume production and blanket orders, with lead times quoted on a job-by-job basis.

World Class Plastics, Inc. also meets the needs of emergency and rush orders. We use Kaizen/5S methods and are lights-out and lean manufacturing-capable. The specific types of equipment we use include:

  • Conair material handling system, including two 70,000 lb silos, with a central vacuum and hopper loaders on all presses
  • Yushin Netliner multi-axis servo robots
  • Multiple Screw Style air compressors
  • 4-component Maguire blenders
  • Whaley and Cincinnati chillers
  • Una-Dyn dryers
  • Advantage water temperature controllers
  • Plastic granulators

Additionally, all of the products we produce are subjected to rigorous quality control monitoring. We use a range of inspection equipment, including a fully automated OGP Smartscope FLASH 500 video measuring system, a coordinate measuring machine, a BYK-Gardner handheld spectrophotometer, and more.

Plastic Injection Molding Services from World Class Plastics, Inc.

Whether your component must adhere to challenging tolerances or precise color-matching specifications, WCPI has the equipment and experience necessary to meet your needs. Our highly automated, ISO 9001:2015-certified facility allows us to deliver even emergency and rush orders according to your deadlines. For more information on our capabilities, contact us today.

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