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Tooling, Design Assistance, ThermoPlastic Molding & Assembly

When you need to find a plastic injection molding supplier that can grow and morph as your needs grow, then get to Infinity.


Infinity Molding & Assembly is the go to injection molding supplier in the midwest to larger contract manufacturers, medical device OEMs and start-up companies who need medical molding expertise.

This includes having the largest Class 7 clean room manufacturing facility in the Midwest. 

design support
  • CAD

  • Mold Flow

  • Mold Cool

  • Prototyping (internal FDM)

Infinity has supported global OEM design and development of major programs with modern equipment and veteran technical staff. Strong internal engineering capabilities combined with our outside tool partners have created a niche to address complex geometric shapes requiring multiple cavities and class 'A' surface requirements across multiple industries. Developing engineering solutions for complex programs requires organizational priority and commitment to an advanced quality planning process.


At Infinity, this process encompasses a cross-functional approach combined with an understanding of customer criteria. From the moment our engineering group receives a new program opportunity, technical analysis drives the interface with our customer. Defining the critical dimensional requirements combined with an acute understanding of the molding process delivers a tool with integrity that meets our customer's needs.


Infinity Molding & Assembly maintains a fully staffed tool room with full time journeyman toolmakers and technicians. The shop is 4,000 sq ft and is primarily for engineering changes, repair and preventive maintenance. Additionally, we have developed close relationships with multiple tool sources in the local area. Infinity has also worked with international tool sources and takes full responsibility for managing the tooling process. EDM, Surface Grinders, Bench Mills, Lathes, Ultrasonic Cleaning, CNC Machining Center and MoldTrac Database are among the many assets we utilize.

some of the types of molding materials we use:
  • PA (Polyamide (nylon))

  • PPS (Polyphenylene sulfide)

  • PBT (Polybutylene terephthalate)

  • POM (Polyoxymethylene (acetal))

  • PVC (Polyvinyl Chloride)

  • ASA (Acrylate Styrene Acrylonitrile)

  • CAB (Cellulose Acetate Butyrate)

  • HDPE (Highdensity Polyethylene)

  • LCP (Liquid crystal polymer)

  • MMA (Methyl methacrylate (acrylic))

  • PC/ABS (Polycarbonate / Acrylonitrilebutadienestyrene Copolymer alloy)

  • ABS (Acrylonitrilebutadienestyrene)

  • PC (Polycarbonate)

  • PPA (Polyphthalamide)

  • PP (Polypropylene)

  • TPE (Thermoplastic elastomer)

  • EVA (Ethylenevinylacetate)

  • PS (Polystyrene)

  • TPO (Thermoplastic olefins)

  • AES (Acrylonitrile Ethylene Styrene)

  • CA (Cellulose acetate)

  • PVDF (Polyvinylidene fluoride)

  • PES (Polyethersulfone)

  • PET (Polyethylene terephthalate)

  • TPU (Thermoplastic polyurethane)

  • PPO (Polyphenylene oxide)

  • SAN (Styrene acrylonitrile)

  • HIPS (High impact polystyrene)

  • MDPE (Medium density polyethylene)

  • PE (Polyethylene)

  • PEI (Polyetherimide)

  • PSU (Polysulfone)

  • PET/PC (Polyethylene terephthalate / Polycarbonate)

Call us today to see how we can help you!

 Strong Tooling Capabilities     

 Molding and Sterile Packaging   

  Class 10,000 Clean Room Molding    

Plastic Injection Molding



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