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Custom Plastic Injection Molding

Our injection molding solutions support everything from early design refinement to full-scale production. With 19 molding machines—including injection blow molding capabilities—and Class 8 cleanroom capacity, we bring medical plastics to life collaboratively, confidently, and without surprises.
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From Concept to Complex Components

Our plastic injection molding services are built for precision, flexibility, and compliance. With 16 injection molding machines and 3 injection blow molding machines, we provide ISO 13485, high-volume medical plastic injection molding for diagnostic, research, and medical OEMs.

Complex Mold Capabilities

We build and run everything from simple single-cavity prototypes to complex, multi-cavity molds for vials, sample prep, and caps & closures.

Cleanroom Manufacturing

We support sterile and non-sterile custom plastic injection molding in a Class 8 cleanroom—ideal for PCR kits, reagents, and biopharma packaging.

Material & Process Expertise

We mold polycarbonate, polypropylene, polyethylene, and custom blends—balancing strength, compatibility, and sterilization needs.

Flexible Medical Plastic Injection Molding

Whether you’re scaling an established product or launching something new, our injection molding solutions flex to fit your needs, offering smart tooling, responsive support, and room to grow.

Parts That Fit-and a Partner That Gets It

From specimen storage to centrifugation, our plastic injection molding services support a wide range of components—vials, caps, reagent containers, tissue grinders, diagnostic housings—you name it.

But we don’t just manufacture—we collaborate. Our team works with OEMs to refine designs, adapt quickly, and deliver the parts you need, exactly when you need them.
Resin & Process Optimization

We help you choose the right material or consult with our vendors to custom formulate a polymer blend, then fine-tune cycle parameters for consistent part performance.

Molding & In-Process Handling

Our 16 injection molding and 3 injection blow molding machines run high-precision programs with cleanroom-compatible handling to protect part integrity during production.

Traceability, Testing & Scale-Up

Get custom plastic injection molding with full traceability, batch documentation, and support for production, validation, and medical plastic injection molding scale-up.

A+ in Class I, II, and III

We’re an FDA-registered medical device manufacturer, experienced in producing components for Class I, II, and III devices. Our custom plastic injection molding services are backed by ISO 13485 certification and supported by RNase/DNase-free and cleanroom manufacturing, ensuring regulatory, validation, and component compliance from pilot to high-volume production.

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Our Approach

We’re more than a supplier—we’re a strategic partner. As a family-owned company, we move fast, stay flexible, and invest in what matters.

Our collaborative mindset and technical depth help OEMs turn great ideas into manufacturable solutions.

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Ready to discuss your project?

We help OEMs bring complex molded components to life—with the care, speed, and flexibility they depend on.
  • “They make us feel like we’re their only customer. Their responsiveness and willingness to work through challenges make them a great partner.”

    Pharmaceutical packaging customer

  • “We’ve been working together for close to 30 years. That relationship has lasted because they are responsive, supply what we need, and we trust their expertise.”

    Medical custom molded closures customer

  • “I see BMP as a partner, not just a vendor. I want a supplier that actively looks for ways to bring costs down while maintaining quality, and BMP does that.”

    In-vitro diagnostics (IVD) & specimen collection and transport customer

  • “We were trying to develop a new part, and BMP worked with us every step of the way. Their ability to customize and refine designs helped us bring it to market faster.”

    In-vitro diagnostics (IVD) & specimen collection and transport customer

  • “Unlike most molders, BMP doesn’t just take orders and quote jobs—they invest with us. We buy tools, they buy machines. We’re in it together.”

    Medical custom molded closures customer

Read Our Success Stories

Frequently Asked Questions

We don’t build molds in-house, but we work with trusted local toolmakers in central Massachusetts, long known for their plastics expertise. While we outsource mold building, our 4,500 sq. ft. tool room supports mold maintenance and repairs for custom plastic injection molding programs.

Most plastic injection molds are rated for 1 million shots, but with proper maintenance, they can last much longer. At BMP Medical, we’ve run tools for over 25 years by performing in-house preventative maintenance to support long-running plastic injection molding services.

We support volumes from 10,000 to over 10 million parts annually. Our custom plastic injection molding services are scalable, efficient, and designed to meet the unique demands of medical component manufacturing and injection blow molding.