Advantages of Medical Injection Molding

Rapid Turnaround

Using our vetted Partner Network, Xometry is able to produce top quality Injection Molded parts in as little as 10 business days.

Scalability

Injection Molding can be the ideal process for production runs of 250-25,000+ parts.

Strength

Injection Molded parts will generally perform better than the same part CNC Machined from the same material. Careful selection of the resins allow for a wide range of corrosion resistance and chemical and solvent compatibility.

Precision

Injection molds are CNC machined to high precision, high tolerances and are able to produce thousands of identical parts with very small and intricate details.

Efficiency

In higher volumes, injection molding produces significantly less waste than other manufacturing processes.

Part Production

Piece price is significantly lower with Injection Molding vs other processes, particularly as production quantities increase into the thousands.

Medical Injection Molding Processes

Thermoplastic Injection Molding

We are able to deliver top quality plastic injection molded parts in as little as 10 business days. Xometry's Manufacturing Partner Network can help you design and manufacture tools, dies, and molds for rapid tooling for prototyping to advanced mold making for production runs. Full injection molding capabilities including insert molding, overmolding, unlimited undercuts, and internal / external threads are available

Mold Making

Our vetted network of partners allow us to quickly convert your 3D part data into a high quality injection mold at top speed. We offer services from design and manufacturing for tools, dies, and molds for prototyping and production runs. Plastic blow molds, aluminum and steel tooling, 2-shot and 3-shot molding are also available. And with Xometry, you own your own tools, so our partner network also offers mold maintenance services.

Medical Injection Molding Materials

Plastics

  • Acetal (Polyoxymethylene (POM)) [Delrin]
  • Acrylonitrile Butadiene Styrene (ABS)
  • Glass-Filled Nylon
  • High Density Polyethylene (HDPE)
  • Low Density Polyethylene (LDPE)
  • Nylon
  • Polybutylene Terephthalate (PBT)
  • Polycarbonate (PC)
  • Polycarbonate/Acrylonitrile Butadiene Styrene (PC/ABS)
  • Polyether Ether Ketone (PEEK)
  • Polyetherimide (PEI) [Ultem]
  • Polyethylene Terephthalate (PET)
  • Polylactic Acid (PLA)
  • Polymethyl Methacrylate (PMMA/Acrylic)
  • Polyphenylene Sulfide (PPS)
  • Polypropylene (PP)
  • Polystyrene (PS)
  • Polystyrene/Polyphenyl Ethers (PS/PPE)
  • Polysulfone (PSU)
  • Thermoplastic Elastomer (TPE)
  • Thermoplastic Elastomer/Vulcanized (TPE/TPV)

Medical Injection Molding Finishes

SPI B-1

600 Grit Paper. Typical Application: Medium polish parts.

SPI B-2

400 Grit Paper. Typical Application: Medium polish parts.

SPI B-3

320 Grit Paper. Typical Application: Medium- Low polish parts.

SPI C-1

600 Stone. Typical Application: Low polish parts.

SPI C-2

400 Stone. Typical Application: Low polish parts.

SPI C-3

320 Stone. Typical Application: Low polish parts.

SPI D-1

Dry Blast Glass Bead. Typical Application: Satin Finish

SPI D-2

Dry Blast #240 Oxide. Typical Application: Dull Finish

SPI D-3

Dry Blast #24 Oxide. Typical Application: Dull Finish

As Machined

No secondary polishing or grinding. Part will show tooling marks.

Applications for Medical Injection Molding

Rapid Prototyping

Although injection molding is best suited for medium to high volumes, the use of low cost tooling allows injected molded parts to be produced very rapidly and cost effectively. In almost every case, an injection molded part will outperform the same 3D printed or machined part from the same material. And depending on the part geometries and the material selected, low cost tooling can last for many tens of thousands of parts.

End-Use Production

Injection molding is best known for producing production parts in the many thousands or even millions. With the advent of newer higher strength materials and fillers such as glass and carbon fiber, parts previously made out of metal are being replaced with injection molded parts to save weight and fight corrosion.

Certifications

  • ISO 9001
  • ISO 13485
  • UL
  • ITAR
  • ISO 7 & 8 Medical Clean Room (contact us)

Overview: What is Medical Injection Molding?

Medical Injection Molding With Xometry

Xometry's network has decades of experience with plastic injection molding for parts used in medical applications. Our strength is helping our customers make complex parts that our competitors often can't make.

We offer:

  • ISO 13485 and ISO 9001 registered facilities
  • ISO Class 8 and Class 7 clean room environments
  • 100% US-based tooling and production
  • Overmolding, insert molding, assembly and post-mold heat staking
  • Part sizes ranging from miniature to 300 square inches
  • Expertise with a wide range of medical materials including PEEK, Ultem®, TPEs, Radel®, PSU, Delrin®, Lexan® and more

We also help you navigate the complexities of the injection molding process. Our skilled team of engineers:

  • Understands your end use (prototype, saleable, low to high volume) and helps identify the right manufacturing solution
  • Gives you a detailed tool design review
  • Guides you through multiple tool trials, including managing design iterations

Featured Medical Injection Molding Resources

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