Hi-Rel Plastics delivers precision insert molding services for medical devices, aerospace, industrial, and other demanding applications. From engineering to production, we manufacture high-quality plastic components with encapsulated inserts — combining materials with the consistency, accuracy, and compliance your project demands.
Hi-Rel Plastics & Molding Corp. provides insert molding services for medical devices, aerospace components, industrial parts, and other precision assemblies that require metal or other substrates encapsulated within plastic. From part evaluation and prototyping to tooling, molding, assembly, and production, we support every stage of the manufacturing process with quality and consistency.
With more than 40 years of experience, we partner with manufacturers across the United States to produce complex insert molded components in ISO-certified environments for highly regulated industries.
Hi-Rel Plastics & Molding Corp. provides insert molding services for manufacturers across the United States. We produce precision components with encapsulated metal, threaded, or other inserts for medical devices, aerospace, industrial, and other regulated applications where structural integrity, material bonding, and production consistency are essential.
Our insert molding process supports complex geometries, tight tolerances, and demanding multi-material requirements for critical applications. Backed by ISO 13485, ISO 9001:2015, and AS9100D certifications, we combine advanced molding expertise with rigorous quality systems to help ensure reliable, repeatable production.
From prototype through full-scale manufacturing, Hi-Rel partners with customers nationwide to deliver dependable insert molding solutions for critical industries.
Manufactured to meet the strict quality and regulatory requirements of medical, aerospace, and industrial applications.
Produces repeatable, high-quality insert molded components with tight tolerances for critical applications.
Encapsulates metal, threaded, and other inserts within plastic for stronger, more functional components.
Supporting low and high volume manufacturing with expert engineering from concept through delivery.
Whether you’re developing a component that requires encapsulated inserts or evaluating insert molding partners, our team is here to help. Below are answers to common questions about our insert molding capabilities and manufacturing process.
Insert molding is a process where a pre-formed insert — typically metal, threaded, or another substrate — is placed into a mold cavity and encapsulated with plastic during the injection molding process. The result is a single, integrated component with improved strength and functionality.
We work with a wide range of inserts including threaded metal inserts, pins, bushings, electrical contacts, and other substrates. Our engineering team can evaluate your design and recommend the best approach for your application.
Hi-Rel Plastics is certified to ISO 13485, ISO 9001:2015, and AS9100D, supporting medical, aerospace, defense, and other quality-critical manufacturing programs.
We serve medical device, aerospace, defense, industrial, and other manufacturers that require encapsulated insert components with certified quality systems.
Yes. Our engineering team and quality systems are designed to consistently produce insert molded components that meet demanding dimensional and performance requirements.
Yes. We support projects from part evaluation and prototyping through mold design, tooling, production, and assembly to help streamline development.
Production timelines vary based on part complexity, tooling, materials, and order volume. Our team will provide a detailed schedule during the quoting process.
To begin, contact our team with your project details, including CAD files or drawings, material requirements, estimated quantities, and application information. We'll review your project and prepare a detailed quote.
Minimum order quantities depend on the manufacturing process, material selection, and project requirements. Contact us to discuss the best production plan for your application.
Yes. In addition to insert molding, Hi-Rel offers assembly and value-added secondary services to help simplify your supply chain and reduce production steps.
