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Plastic Injection Molding Service

Precision Plastic Injection Molding: Your Trusted Partner for High-Quality Manufacturing Solutions

Stelray Plastic Products is a leading global custom plastic injection molding company providing cost-effective solutions across a wide range of applications and industries.

We have an outstanding supplier record of providing precision plastic molding, post-molding and prototyping services to an array of industries and Fortune 500 companies. We take pride in knowing that our customers rely on our team for consistent quality, superior plastic injection molding service and on-time delivery. Our facility is fully prepared for large part injection molding, ensuring precision and efficiency at scale.

Clean Room Molding

Plastic Injection Molding Services

Our specialty production shop is equipped to take on short, mid and large-volume runs, and offers white room services for medical, dental and bioscience applications. Among our capabilities:

  • Clamping force of 22 tons - 620 tons
  • Shot size of 1 ounce - 45 ounces
  • Production volume of 100 units to 100 million units
  • Tolerance of (+/-) .001”
  • Conventional & Rotary injection horizontal molding machines Insert molding, overmolding & multi-material molding
  • Large part injection molding
  • Hot runner injection molding

Custom Plastic Injection Mold-Making Services

Stelray offers complete custom injection mold-making services as well as accepting mold transfers of existing tooling all managed by our expert engineering team, who will work with you to achieve optimum performance and cost-effective savings. As part of our service, we offer in-house design and long-term mold service maintenance, as well as on-site tool room resources for mold enhancements or new product needs.

As a full-service company, we offer in-house design, tooling and engineering support as part of our custom mold-making services. All tooling design and manufacture is done by our team—for a complete custom application. Our engineering staff and molding technicians are experienced in commodity, engineering, and exotic, high temperature resins, to assist you in the proper plastic resin selection while developing the mold best suited to take on the material selected for your project.

Post-Mold Services

At Stelray, we offer a range of post-molding value-added services for our customers that require more than just a molded part. Pad-printing, hot stamping, painting, plating and shielding services are available for decorating and coating requirements. In addition, ultrasonic welding, and heat-staking resources are available to accommodate your molded joining needs. If your program requires packaging or assembly, we offer bagging options to complete full-service packaging services.

Engineering & 3D Prototypes

At Stelray, we are often asked to assist in the plastic part design development and prototyping of new product ideas for our customers. If “speed to market” is your concern, Stelray’s in-house 3D printing services can be the solution, or consider the development of a quick turn soft tool constructed in our in-house tool room. As a full-service plastic injection molding company, we offer a number of product design and engineering services to help develop form, fit and function of your part for successful plastic injection molding.

Precision Quality Assurance

Our creative approach to streamlined manufacturing and problem-solving allows us to manufacture high-quality complex components and assemblies economically. Our Quality Management System incorporates the principles of ISO-9001:2015, with a comprehensive plan and system of procedures in our daily tasks and for every production run. Every new project at Stelray begins with a comprehensive Program Review which includes a deep dive into the inspection requirements for the given components to ensure that we understand your product quality needs from the beginning. Additional services offered at Stelray Plastic Products through our QA Department include complete Product Validation, Process Capability Studies and PPAP investigations.

White Room Molding

At Stelray Plastic Products, Inc., we take pride in our advanced manufacturing capabilities, including our separated white room molding cell. Our commitment to precision and quality extends to every aspect of our production process, and our white room molding is no exception. This room caters to healthcare components that necessitate a more controlled environment than a standard production room, but where an ISO standard clean room is not required. This will enable our partners to get their precision parts manufactured with the necessary cleanliness and attention to detail, all without the heightened costs typically associated with clean room facilities.

What Sets Us Apart:

  • White Room Standards: Our white room molding cell adheres to cGMP quality standards, ensuring a controlled environment free from contaminants. This dedication allows us to meet the strict requirements of medical devices and electronics industries.
  • Precision Molding: Our white room molding processes facilitate precision and consistency in every product. We understand the importance of maintaining a controlled environment to produce components that meet the most demanding specifications.
  • Employee Training and PPE: Stelray employees are trained in following clean area procedures, limiting the risk of contamination. In addition, our PPE requirements when working in the white room further reduce the possibility of cross-contamination. This includes garments like hair coverings, gloves, and gowns.


Our white room molding capabilities find application in various industries, including healthcare, oral care, electronics, and other sectors where maintaining a controlled environment is required. From intricate medical device components to precision electronics, we ensure that our white room molding meets the stringent standards demanded by your industry.

For inquiries or to learn more about our injection molding service, contact us today.

Mold Transfer Service

At Stelray, we take pride in offering a seamless mold transfer service that directly translates into saving companies valuable resources and time. Our expertise in handling complex transitions ensures that businesses can smoothly transfer molds, even in the aftermath of fractured business relationships. Our streamlined process minimizes transition periods, allowing for swift integration and resumption of manufacturing operations. We understand the importance of maintaining product quality and specifications throughout the transfer. Stelray’s full service in-house tool room allows for the ability to quickly address anticipated or unexpected mold adjustment needs. We strive to not only bridge the gap caused by strained partnerships but also to provide a pathway to enhanced efficiency and renewed focus on core business objectives. 

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