Custom Injection Molding Services hero

Custom Injection Molding in California

Fast turnaround. Full-service production. No minimums.

Tamarack Industries provides high-quality, custom plastic injection molding to businesses across California. Based in Yakima, WA, we deliver fast, affordable service to manufacturers and innovators throughout the West Coast—without the high shipping costs or delays of overseas suppliers.

Manufacturing and distribution machinery

Our Injection Molding Process

  • Tell Us What You Need

    Send us your part drawing, prototype, or design idea. We’ll review and provide a detailed quote for tooling and production.

  • Design Review

    Together with our mold-building partners, we will assess the part for moldability and make any improvements needed to ensure reliable performance.

  • Sample Production

    We’ll build your mold and produce initial T-1 samples. Once approved, we finalize the mold with polish and texturing.

  • Full Production

    We inspect, prep, and run your mold in our facility. After a final sample check, we begin full-scale production.

Make Tamarack Your Injection Molding Partner in California

Ready to work with a reliable, U.S.-based injection molding company that serves all of California? Tamarack Industries offers custom plastic manufacturing with faster delivery, no minimums, and unmatched support.

Why Work with Tamarack for Injection Molding in California?

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    Custom Plastic Injection Molding

    We work with new product designs or existing molds to produce durable, consistent parts. Whether you need 10 units or 10,000, we’ll help you get the right results with no minimum order.

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    Full-Service Capabilities

    Beyond injection molding, we also offer:

    • Part design and prototyping
    • Mold design and testing
    • Secondary operations such as assembly, welding, and drilling
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    Flexible Mold Sizes and Shot Capacity

    Our presses range from 25 to 500+ tons, with shot capacities from 1 to 2,267 grams—allowing us to create everything from tiny components to larger-format parts.

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    Quality Compliance

    Tamarack Industries ensures that all products meet or exceed applicable internal and external quality standards and are free from workmanship-related defects.

Check Out Our Reviews

Stephanie Moore
Meier's Wine Cellars, Cincinnati, OH

VINPAK

I love the boxes and inserts. Haven’t had a damaged order yet, and the wine arrives looking great. My customers love the packaging – looks professional.

Stef Vollmer
Truthteller Winery, Woodinville, WA

VINPAK

We greatly appreciate the reliability VinPak has given us. Knowing that our wines will arrive safely and look great when they get there is priceless. Thank you for everything you do for us.

Montebello Plastics
Montebello, CA

ROLL CRADLES

Tamarack provides the cradles used by our packaging system. They are efficient for packaging bottles securely, reducing waste, and improving delivery times. CradlePak has made our shipping process more efficient.

Alison Thompson
Prairie Berry Winery, Hill City, SD

VINPAK

The VinPak inserts are such a Godsend because they are reliable, convenient, and very cost effective. Not only do they allow us to ship wine without worry of damage, but they also present our brand in a very professional way.

Robbi Ebel
Gramercy Winery, Walla Walla, WA

VINPAK

I have used VinPak before and they do a great job. The finished package looks fantastic and represents our winery very well

Manhasset Specialty Co.
Yakima, WA

CUSTOM INJECTION MOLDING

Manhasset stands have supported music performers worldwide since 1935. Tamarack Industries provides the plastic components used in the stands, helping to continue the tradition for over 85 years.

Industries We Serve in California

  • Manufacturing and distribution machinery

    Manufacturing & Shipping Supplies

    Core plugs, roll cradles, protective caps

  • Agriculture

    Agriculture & Food Production

    Parts for harvesting, irrigation, and food safety equipment

  • Industrial & Heavy Machinery

    Industrial & Heavy Machinery

    Components for OEMs and replacement parts

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    Sporting Goods

    Durable plastic parts for outdoor and performance equipment

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    And More

    We can manufacture custom-molded parts for almost any industry.

Custom Injection Molding

Injection Molding Pricing Factors

Our pricing depends on several factors:

  • Quantity – Larger runs usually offer better per-unit pricing
  • Complexity – Intricate parts tend to be more costly than less intricate parts 
  • Part Size – Smaller parts typically cost less due to shorter cycle times
  • Material Selection – We offer ABS, nylon, HDPE, PP, acetyl, and other thermoplastics

Contact us for a quote based on your part design and quantity.

Our Service Areas

Tamarack Industries is available to serve businesses throughout California, including:

  • Sacramento
  • San Jose
  • Oakland
  • Modesto
  • Stockton
  • Santa Rosa
  • Napa
  • Redding
  • Chico
  • Fairfield
map of West Michigan
Our Commitment to Sustainability

Our Commitment to Sustainability

Environmental responsibility is built into every part we make. Tamarack Industries:

  • Uses U.S.-based production to reduce overseas emissions
  • Incorporates recycled plastics whenever possible
  • Designs for long-lasting durability and reusability

We also support regional supply chains to help California businesses reduce their environmental footprint.

Frequently Asked Questions

What plastics do you use for injection molding?

We work with a variety of materials, including HDPE, polypropylene, ABS, nylon, and acetyl, with options for recycled content.

Can you provide low-volume injection molding for California businesses?

Do you ship throughout California?

How long does the injection molding process take?