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Thermoplastic Injection Molding for Precision Manufacturing

Polymar Injection Molding offers thermoplastic injection molding services for precision manufacturing applications in accordance with ISO 9001 quality management standards. These services utilize 15+ different thermoplastic resins, including traditional materials such as ABS and PVC, as well as more complex resins such as ECTFE, ETFE, PEEK, and PVDF.

Thermoplastic molding requires specialized expertise that goes well above regular manufacturing capabilities. For over forty years, Polymar has provided advanced processing techniques that meet our clients’ demands and set the industry standard. Our team understands these different guidelines, including UL-certified injection-molded parts, and applies the correct temperature profiles, injection pressures, and cooling cycles to achieve optimal part quality in high-volume production runs of complex plastic parts and components.

Thermoplastic Injection Process: Material Review, Tooling, & Testing

At Polymar, we’re more than just a “shoot-and-ship” injection molding manufacturer. Our team is invested in the success of each plastic part that leaves our facility and works collaboratively with client engineering and design teams to refine production methods that result in high-quality parts with fast turnaround times and competitive pricing. When working with our team, we assist in the following areas:

  • Material Review: Our team matches thermoplastics to required part performance
  • Tooling Strategy: Optimize molds and tooling for maximum efficiency and quality
  • Process Setup: Spend time optimizing equipment before production, not during
  • Testing Phase: Produce sample parts, inspect tolerances, and match specifications
  • Production: Seamless transition from prototype to production phases

Our process follows proven ISO 9001 quality management protocols that deliver consistent results for our customers, with comprehensive documentation to ensure the first batch and the final batch of parts are identical.

Value-Added Thermoplastic Molding Capabilities

We don't just mold parts and ship them out to customers. For many projects, molded components require additional work such as inserts, assembly, and secondary operations that can all be handled under one roof without requiring additional service providers and logistical headaches.

  • Insert Molding: Metal inserts positioned exactly where your drawings show them
  • Multi-Material: Two-shot and overmolding for complex assemblies
  • Secondary Ops: Machining, sonic welding, pad printing, whatever you need
  • Assembly Work: Put components together so they arrive ready to use
  • Packaging: Retail-ready packaging (RRP) for direct factory-to-distributor production

Some projects require specialized approaches, and our team is capable of meeting specific production or post-molding requirements depending on the industry. For example, thermoplastic medical parts need different handling than automotive components. Even for something as challenging as plastic parts for chemical environments, our manufacturing services include fluoropolymer processing and specialty materials that few injection molding companies are willing to work with.

Injection Molding Equipment & Press Capacity

Polymar Injection Molding operates an extensive collection of injection molding equipment that offers anywhere from 28 to 720 tons of clamping force, offering customers the flexibility required to manufacture small precision parts, mid-sized technical components, and larger molded thermoplastic products.

With available shot capacities that range from 0.8 to 86.3 ounces and screw diameters from 18 to 92 mm, our team can easily match available injection molding equipment to the material volume, part geometry, mold design, and production requirements of your plastic parts. Our injection molding equipment includes:

  • Equipment Brands: ARBURG, ENGEL, HPM, and Van Dorn
  • Press Capacity: Operational forces ranging from 28 to 720 tons
  • Volume Flexibility: Equipment suited for low-volume and full-scale production runs
  • Shot Size: Small-shot precision molding capabilities and large shot capacity
  • Availability: 18 injection molding machines mean expedited production times

We manufacture over 10,000,000 thermoplastic components annually, and nearly half a billion parts in our company history. Everything from medical devices and automotive assemblies to industrial equipment and aerospace parts. We’re confident that we possess the necessary injection molding equipment to bring your thermoplastic parts and components to market.

Quotes for Thermoplastic Molding Production Projects

Here's how it works. You tell us what you need. We figure out the best approach. Materials, processing, timeline, and costs. To make it an easy and seamless process, we lay it all out clearly.

At Polymar Injection Molding, we pride ourselves on taking an individualized approach to every project that comes through our doors. We’re more than a “shoot-and-ship” company; we act as an invested partner in our clients' success and strive to learn how they operate, their challenges, how they want to solve these problems, and the end goal. From prototyping to full-scale production runs, we value every relationship and treat all situations as though they were our parts.

FAQs About Thermoplastic Injection Molding Services

01What thermoplastic resins can Polymar injection mold?

We regularly process and mold 15+ different thermoplastic resins, including many that other injection molding companies can not or will not process. This includes engineering thermoplastics, high-performance polymers, and challenging fluoropolymers. We mold ABS, PC, PET, PBT, PPO, PPS, PA6, PP, POM, ECTFE, ETFE, PEEK, PVC, PVDF, and CPVC.

02What size thermoplastic parts does Polymar specialize in molding?

Our injection molding equipment ranges from 28 to 720 tons of clamping force with shot capacities from 0.8 to 86.3 ounces. This extensive molding capability allows us to take on small precision molding jobs, mid-sized technical parts, and larger molded thermoplastic components or assemblies.

03What tolerances can Polymar hold on injection-molded plastic parts?

With our combination of experience and equipment, we can hold tolerances as tight as ±0.001” on qualifying features and profiles. Actual achievable tolerances may vary based on the specific resin, part geometry, tooling, wall thickness, feature location, and overall production specifications.

04Do you offer any value-added post-molding services to reduce logistics and costs?

Yes. We offer insert molding, two-shot and multi-material molding for specialized applications. Our value-added post-molding services include overmolding, machining, sonic welding, pad printing, assembly, and even custom packaging to provide more comprehensive start-to-finish injection molding capabilities that reduce production costs and turnaround time.

05What industries does Polymar regularly work with for thermoplastic molding projects?

Given our experience, ISO certification, UL certification, and molding equipment, Polymar is an ideal partner for virtually any industry. Since 1979, we’ve specialized in thermoplastic molding for customers in the medical, automotive, construction, electrical, and industrial OEM sectors.