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The Design & Engineering Team at  River Valley Plastics offers complete mold design.  We will help you turn ideas into Prototypes and see them through to production by working with you in the earliest stages of your  injection mold development to discuss material selection, mold design options and  manufacturability.  Contact one of our experienced team members today to discuss your needs or to get a  free quote on an existing project or prototype. 

Our Tool & Die Shop is equipped with CAD/CAM, CNC , and a full complement of machine tools.  In addition to the engineering of custom plastic injection molds, our tool shop will diagnose  and make repairs to your existing molds or tooling to get your business up and running again fast and affordably.


Our production facility is dedicated to the manufacture of highly engineered, premium quality  custom plastic injection molded parts.   We supply products to a wide range of  industrial and consumer markets.  Our manufacturing capabilities include Insert Molding and Thermoplastics and incorporate many secondary operations into our products, including but not limited to:   

  • Heat Staking

  • Thread Tapping

  • Overmolding

  • Assembly

  • Sonic Welding 

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