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Hirel Plastics Quality

Quality Control

Quality Management System is an integral component of our approach to customer service, and we take it very seriously. Hi-Rel Plastics & Molding, Inc. is committed to achieving and maintaining the satisfaction of our customers by meeting or exceeding all of their requirements, delivering defect-free products on time and providing competitive prices.

Standard Operating Procedures

Through the use of Standard Operating Procedures (S.O.P.s), all phases of our customers' jobs including set-up, molding production, in-process inspections and secondary operations are documented to their specifications. Traceability of all production runs are maintained by Quality Staff. Our modern, digitally controlled equipment ensures repeatability of production runs.Dedication to quality and continuous process improvement enables us to provide our valued customers with consistent products at reduced costs.

QA at Hirel Plastics Injection Molding, Inc. is a three-step process:

A visual inspection is performed by our trained machine operators on every part that is made the moment it comes out of our machine using the parameters and critical dimensions set by you, our customer, to identify any rejects.


Once every hour our QA personnel measures critical dimensions of the samples & verifies them with customer supplied prints, and any rejects are logged.


Finally, the acceptable parts are boxed, counted, and moved to our quality control department, where they are randomly inspected once again, and the count is verified. The parts are then ready for shipment.

Our internal compliance with quality specifications reaches 99%, assuring 100% customer satisfaction.

  • As leading plastics industry experts in custom injection molding for engineering application , Hi-Rel fulfills the requirements of the internationally recognized ISO 9001:2008 standard. It is the policy and overall business objective of HI-REL to provide products & services of the highest quality and in compliance with customer’s specified requirements. It is also our mission to enhance our reputation and capabilities in order to gain wider recognition in our field of expertise.

  • HI-REL recognizes that genuine commitment to understanding the present and future needs of its customers is essential to the achievement of these objectives, and continually strives to ensure the needs and expectations of the customer are realized in the quality of the products, and services we provide. To this end in 2010 HI-REL gained the ISO 9001:2008 status, recognizing the quality of our administrative and management systems.

  • HI-REL will constantly monitor its quality performance and will implement improvements where appropriate in order to maintain our quality ethos.


Hi-Rel Plastics & Molding, Inc. offers custom injection molding for all major industries. At Hi-Rel Plastics & Molding, Inc. we serve every facet of the molding process from part evaluation, tool design, prototyping, tool making, sampling and production of quality finished parts. Our commitment to product quality, on-time delivery, and superior customer service has enabled us to forge strong.

Hi-Rel Plastics & Molding, Inc. processes an almost infinite variety of thermoplastic resins, including engineering grade materials such as PEEK, ULTEM, PVDF, LCP, PPS, PES, PC, PBT, ABS, NYLON, ACETAL, PP, HIPS, HDPE, LDPE, ELASTOMERICS (TPE), POLYURETHANES, ACRYLIC, PVC and many other specialty filled / unfilled grades too numerous to list. Since we started the business in 1984, we've built partnerships with every customer on the basic business principles of integrity, responsibility and ingenuity.

Whether you’re looking for complex technical parts for medical, aerospace, military or scientific application or luxury item components for your high end customers, the mold designed & build by Hi-Rel Plastics & Molding are always very high precision.

With more than 25+ years of experience, our employees master technical & practical knowledge of design & building of molds & injection of plastic parts. Our team has acquired a level of technical skill & problem-solving experience that guarantees the delivery of high quality products to our clients. Some of the parts we make here we have to meet tolerances of up to ± 0.001 inch in order to maintain a low rejection rate of less than one-half percent.

We are well-known in our industry, not only for the top quality work we produce, but also for our ability to discover unique and effective solutions to customers' dilemmas. Such difficulties may lie in the areas of design or processing or somewhere in between. Our scope of knowledge is broad and covers many topics. these include, but are not limited to, injection molding, machinery, auxiliary equipment, molds and their components, resins, colorants and additives, processing parameters as well as the numerous types of interactions among these and other factors.

On many occasions through the years when our competitors have been unable to successfully produce a particular part, Hi-Rel Plastics & Molding, Inc. has triumphed. The depth and breadth of our expertise make us an invaluable resource for our customers. Our customers recognize our capabilities and continue to return to us for their custom injection molding needs.

  • 25+ years of thermoplastic injection molding experience.
  • Consistent high-quality parts at competitive prices.
  • Environmentally clean facility.
  • Engineering Solutions for demanding applications.
  • Encompass all of the offerings of the business. ( Part Design, Mold Making, Thermoplastic Molding, Electronic Assembly, Value Added Secondary Services)
  • We offer JIT ( KANBAN ) orders.
  • We utilize our own fleet of delivery vehicles to ensure accurate just-in-time delivery.
  • We invest in training associates through a full-time trainer and pay-for-knowledge training system to ensure associates continue to learn and maintain industry skill levels.
  • We are a team of dedicated Associates ready to serve your custom thermoplastic injection molding needs.
  • Our quality is superb, price is competitive, and delivery is the best in the industry.
  • Hi-Rel Plastics Molding, Inc. is serious about providing customer service.